457 Matching Annotations
  1. Jun 2022
    1. visible with his identity at the university

      Student involvement and ties to visibility of their identity?

    2. My teacher thought I was gay or something so he had told my parents.

      Possibility of educators disclosing identities of students without consent? Something tied to educational policy in that country? Or cultural influence? Where to capture something like this in the research?

    3. Triangulation is a method used in qualitative studies to contribute to validation andverification throughout the qualitative analysis

      Will validifying and verifying research results be a part of the research process?

    4. The analysis of this study was conducted in accordance with the principles of IPA(Smith et al., 2009).

      Standard practice to describe data analysis process

    5. Atlas.ti version 8.0.29.0

      Qualitative data analysis software

    6. snowball and purposive sampling technique.

      Recruitment techniques

    7. (Beaty, 1999; Cass, 1979; Coleman, 1982; Harperet al., 2004; Kahn, 1991; Kuper, Coleman, & Mustanski, 2013; Troiden, 1989).

      May help to look into these theories for research

    8. a coming out model

      There are theories and models specific to the LGBTQ+ community

    9. When discussingidentity and its influence on the coming out experience, it is important to recognize theinfluences of culture, social constructs, and social roles on identity.

      Wonder if these factors should be made into interview questions?

    10. rural community

      May be a factor to think about in perceptions and experiences of LGBTQ+ int'l students

    11. significant factor in their decisions to reveal their identity.

      May be something to pay attention to in research

    12. institutional support programs,policies, practices, and resources provided in U.S. higher education for LGBTQinternational students.

      Might also be something to look for in research project during interviews - role of institutional support programs, policies, and resources in experiences abroad

    13. or example, undergraduate students were 45%less likely to come out to family compared to 70% of graduate students

      Undergraduate students less likely to be out to their families than graduate students, why? More reliant upon familial support? May be important to capture this demographic information in research interview participants

    14. changes in self-identification and labeling as the students change what words andterms they use to define their sexualities; changes in self-acceptance as their opinions onsexuality and their own homosexual identities shift; changes in self-understanding as theyadjust the degree to which they are open to expressing their sexuality in a reexamination oftheir own identities; and changes in their perceptions of their own potential professionaland romantic future as queer individuals

      Thinking about identity development as something to ask about in the research?

    15. marriage due to cultural and religious norms to be substantially important based on thesignificance of procreation to assist with family status and the economic growth withinthese communities

      Reasons why LGBTQ+ discrimination may be worse in African and Middle Eastern countries

    16. cultural values regarding sexual orientation, access to healthcare, discrimination and coping

      Additional issues of concern for LGBTQ+ int'l students that int'l students may not be as concerned about

    17. Journey to Community; Journey to aDestination of Diversity; Journey to Visibility; and Journey to Interiority

      How participants found/felt: community, diversity, visibility, and inferiority

    18. four major themes that emerged from the study that captured thecoming out experiences of the participants

      Thematic analysis?

    19. theoretical framework focused on identity was also utilized to develop a betterunderstanding of the participants’ coming out experiences and identity development.

      Take note -- see how author uses theoretical framework in their research

    20. interpretative phenomenological analytic approach

      Potential research methodology to use in research project

    21. limited research that addresses the coming outexperiences or identities of these students while they are studying in the U.S.

      Focus of paper and scope of research on focus of paper

    22. there is little to no research focused on international LGBTQ students’experiences in the U.S.

      Scope of research field

    Tags

    Annotators

    1. A selective improvement technique for fastening Neuro-Dynamic Programming in Water Resources NetworkManagementDaniele de Rigo, Politecnico di Milano, ItalyAndrea Castelletti, Politecnico di Milano, ItalyAndrea Emilio Rizzoli, IDSIA, SwitzerlandRodolfo Soncini-Sessa, Politecnico di Milano, ItalyEnrico Weber, Politecnico di Milano, Italy

      Cite as:

      de Rigo, D., Castelletti, A., Rizzoli, A.E., Soncini-Sessa, R., Weber, E., 2005. A selective improvement technique for fastening neuro-dynamic programming in water resources network management. In: Źıtek, P. (Ed.), Proceedings of the 16th IFAC World Congress, IFAC-PapersOnLine. International Federation of Automatic Control (IFAC), pp. 7-12. https://purl.org/INRMM-MiD/c-10793225

    1. "LGBT students canonly access the support they need if they feel comfortable to disclose their sexualorientation and gender identity"(Pasterny,2017).

      HEIs need to find ways to make LGBTQ+ students feel comfortable on campus, and off campus when possible

    Tags

    Annotators

    1. Many students require some form of individual support from their university before and during their studies abroad.

      Not after as well?

    2. Consult LGBT student societies when developing and marketing study abroad opportunities

      Important. I don't think LGBTQ+ support groups are factored into decision-making in equity and DEI initiatives often enough

    3. Homophobia, biphobia and transphobiaare often state sponsored

      External context on LGBTQ+ discrimination

    4. concerns about personal well-being can deter students from doing so

      Push factor for studying abroad

    5. xperience they gain from studying abroad increases theiremployability.4

      Pull factor for studying abroad

    Tags

    Annotators

    1. (ESL) instructors and international student office staff, about the experiencesof these students that might be otherwise overlooked. It is important thatsuch faculty and staff show openness to discuss LGBT issues and also tohelp them smoothly refer students to counseling services as needed

      More referrals could mean more students having access to LGBTQ+ inclusive and affirming mental health and counseling services that can impact their experiences upon returning home

    2. LGBT international students go back to theirhome countries for various reasons including for their families, for betterjobs, and because of their felt calling to contribute to their home and peo-ple.

      Reasons why LGBTQ+ students may choose to return to their home country: family, better job prospects, contributing to their home and country

    3. Most LGBT support groups and resourcesare designed for people who are Americans, and international students mighthave a hard time understanding what is going on because of language andcultural issues as well as how to socialize with strangers.

      LGBTQ+ international students can feel isolated even in LGBTQ+ support groups in the U.S.

    4. gay internationalstudents face much fear in disclosing their identities to their families. Theirenvironment will not allow coming out in their sexual identity, and thereare social and familial expectations that they marry someone of the oppositegender.

      Note: general fears when returning to home country from abroad: social and familial stigma, expectations of being forced into partnerships with opposite sex (gay, lesbian). death in some countries

    5. returning to their home countries.

      Focus for purpose of research project

    6. When using counselingservices, international students report a high dropout rate more often thandomestic students because of their negative view of seeking professionalhelp and a lack of understanding in using counseling services

      International students are more likely to dropout than domestic students

    Tags

    Annotators

  2. May 2022
    1. Such a highly non-linear problem would clearly benefitfrom the computational power of many layers. Unfortu-nately, back-propagation learning generally slows downby an order of magnitude every time a layer is added toa network.

      The problem in 1988

    1. 您可以使用 typedef 为一个已有的类型取一个新的名字。下面是使用 typedef 定义一个新类型的语法:
    1. 下一行 using namespace std; 告诉编译器使用 std 命名空间。命名空间是 C++ 中一个相对新的概念。
    1. DICER1 syndrome encompasses a variety of benign and malignant manifestations including multinodular goitre

      Gene: DICER1 PMCID: PMC8451242 PMID: 34552563 Pathogenic Inheritance Pattern: Autosomal Dominant MultipleDiseaseEntities Disease Entity: DICER1 syndrome, multinodular goitre, cystic nephroma, anaplastic renal sarcoma, Wilms tumour, differentiated thyroid carcinoma, gynandroblastoma, ciliary body medulloepithelioma, embryonal rhabdomyosarcoma, pineoblastoma, pituitary blastoma, kidney cyst, pulmonary cyst, Sertoli-Leydig Cell Tumor. Mutation: Germline MultipleGeneVariants Variant & Clinvar IDs: c.3452_3453del (485534), c.316del (no ClinVar ID), c.171_172insAC (no ClinVar ID), c.3434del (no ClinVar ID), c.988C>T (933007), c.5388dup (no ClinVar ID) Zygosity: None provided. Case: At time of operation, the goitre patients living in Denmark were ages 21, 12, 21, 8, 14, and 16. Four underwent total thyroidectomies, and two underwent partial thyroidectomies. The patient originally aged 21 previously had a kidney cyst at age 14 and a pulmonary cyst at an unknown age. The patient aged 14 at time of partial thyroidectomy later manifested a Sertoli-Leydig Cell Tumor at age 15. All six patients were female. CasePresentingHPO: None provided. CasePreviousTesting: thyroidectomy gnomAD: ENSG00000100697.10, https://gnomad.broadinstitute.org/gene/ENSG00000100697 Mutation Type: Frameshift, Nonsense

    1. DICER1 syndrome is an autosomal-dominant, pleiotropic, tumor-predisposition disorder arising from pathogenic germline variants in DICER1, which encodes an endoribonuclease integral to processing microRNAs (1).

      Gene Name: DICER1 PMCID: PMC5443331 PMID: 28323992 HGNCID: not found Inheritance Pattern: autosomal dominant Disease Entity: thyroid cancer and familial multinodular doiter Mutation: germline loss-of-function mutation Zygosity: not provided Variant: c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.1870C>T; p.Arg624a, c.3726C>A; p.Tyr1242a, c.3675C>G; p.Tyr1225a, c.3675C>G; p.Tyr1225a Family Information: 145 individuals with a DICER1 germline mutation and 135 controls from 48 families Case: family members used; both males and females used and no significant differences seen among sex; ages range from 20-40 with carriers being significantly younger than controls; no significant differences seen among ethnicity but participants located from the US, UK, and Great Britain CasePresentingHPOs: thyroid cancer or MNG diagnosis common to those with a DICER! mutation but with no chemotherapy or radiation treatment yet CasePreviousTesting: tested levels of thyroid-stimulating hormone, thyroxine, thyroxine-binding globulin, and serum albumin; thyroid palpation; thyroid ultrasound; Sanger or next-generation sequencing assays gnomAD: n/a Mutation Type: missense

  3. Apr 2022
    1. La gran C de Copiray tiene como función decirnos quienes son los creadores de una obra y los derechos sobre esta, pero aun así esta no es muy conocida o identificada a simple vista entonces esto podría hacer que cualquiera cayera en plagio si no tiene en cuenta en el momento de editar una obra ya previamente creada ya que esta c nos remite a un entorno privado donde no se puede editar simplemente por editar esto también causa controversia en cuanto a los elementos que están en internet y nos interesan porque previamente va existir información que tal ves deseamos modificar pero que no se puede hacer.

      min: 2:20 [(https://www.youtube.com/watch?v=SUblaElbybE)]

    2. La gran C tiene mucha relevancia porque esta impuesta en cualquier garabato que hagamos entonces esto hace que cualquier obra realizada tome la propiedad de su autor original dándole voz y voto a quien en verdad lo merece

      [(https://www.youtube.com/watch?v=SUblaElbybE)] min: 2:40

    1. Prof. Christina Pagel 🇺🇦 [@chrischirp]. (2021, November 24). As well as Tom’s new one (B.1.1.529), C.1.2 seems to be spreading in S Africa—C.1.2 was the one with lots of worrying mutations first reported in August... Plus cases in S Africa suddenly increasing again in the middle of their summer. Https://t.co/fCqfOMcO83 [Tweet]. Twitter. https://twitter.com/chrischirp/status/1463504890530086917

    1. Thus have been briefly noticed the results obtained by research in the Leipsic laboratory during the past seven years. They prove conclusively that it is possible to apply experimental methods to the study of mind. The positive results are, besides, not insignificant, and will compare favourably with what has been accomplished during the same period in many chemical, physical and physiological laboratories. An increased interest is everywhere being taken in experimental psychology, and we may hope that we shall some day have as accurate and complete knowledge of mind as of the physical world.

      As experimental psychology was being pushed to evolve into new science through development of experimentation, observation, appliance of external stimuli and reaction of the psyche; the results produced equate to the ones in other scientific fields. The importance of having psychology be a natural science is to understand how an individual's psychology functions in response to the stimuli. Experimentation would allow better understanding of conscious beings. The experiments discussed provide value to adapting psychology as an experimental science that would benefit students and provide equality to psychology in comparison to a field like chemistry.

  4. Mar 2022
    1. 初始大小以宏 LEPT_PARSE_STACK_INIT_SIZE 的形式定义,使用 #ifndef X #define X ... #endif 方式的好处是,使用者可在编译选项中自行设置宏,没设置的话就用缺省值。
  5. Jan 2022
    1. Des initiatives pour protéger ces espaces :

      Arg3: Malgré les risques environnementaux qui pèsent sur les EM, il existe des initiatives pour protéger ces espaces

      • Réduction des émissions de CO2 GAS + niveau CO2 atm + température ++ océans = phytoplanctons moins utiles à l'homme Absorber 30% du CO2 généré par l'homme Produire 50% oxygène = indispensables pour la vie humaine sur terre.
    2. des espaces menacés par les effets du changement climatique

      Arg2: Le réchauffement climatique est une menace pour les EM

      • La pollution plastique Consommation = 8M tonnes déchets / an => Formation d'une "soupe de plastique" / "continent de plastique" Risque pour biodiversité marine, espèces ingèrent le plastique

      • Les marées noires constituent un risque pour les EM 2010: Explosion de la plateforme "Deepwater" = marée noire sur les côtes de la Louisiane = EU conflits d'usage entre compagnies pétrolière, pêcheurs et employés du tourisme .

    3. des ressources surexploitées :

      Arg1: Il est nécessaire de protéger les EM car des ressources sont surexploitées

      • L'enjeu de la surpêche selon ONU: 1975 - 2021: 10% => 30% des ressources halieutiques surexploitées 90% des espèces maritimes peches ne se renouvellent pas assez vite naturellement Mer Noire, Méditerranée = Peche industrielle, technique du chalutage

      • La pêche illégale et la pêche d'espèces protégées Espèces en voie d'extinction: grand requin: ailerons, chair, thon rouge Surexploitation des ressources maritimes, selon FAO 26M tonnes = 15 % prises totales.

    4. Des espaces inégalement intégrés

      Arg1: Certaines façades maritimes sont inégalement intégrées au processus de mondialisation

      • Concentration sur certains littoraux = pôles de M° Amérique du Nord, Europe, Asie de l'Est (16/20 ports) 11e: Rotterdam 17e: Los Angeles

      • Des Etats tentent de s'intégrer dans les échanges mondiaux Inde, Vietnam, Maroc = 3e terminal construit au port de Tanger.

      • certains espaces demeurent marginalisés isolation des principales routes maritimes (Amérique du Sud, Afrique) territoires enclavés = dépendance échange: PMA (République centre africaine), Afghanistan

    1. 隐式声明(Implicit Declaration)

      如果函数在调用一个在这之前没有声明或者定义的函数,会把该函数当成隐式声明来处理,根据上下文来为该函数调用生成对应的指令

  6. Dec 2021
    1. main関数のreturnは省略しています。C++のmain関数では、returnを省略すると自動的にreturn 0;がコンパイル時に追加されます。

      [[C++のmain関数のreturnを省略するとreturn 0;がコンパイル時に追加される]]

    1. それ以外の用途において、bits/stdc++.hを用いることは避けるべきだと考えます。これには以下のような理由が考えられます。 libstdc++環境固有のヘッダであり、これを用いることはプログラムの可搬性を大きく損なうため ヘッダのプリコンパイルによるコンパイル高速化を行わない場合、stdc++.hのインクルードは本来の使用目的から外れ、コンパイル時間を増大させる可能性があるため コンパイル後のバイナリに不必要な未使用定数などが含まれ、サイズが増大するため 不必要なヘッダをインクルードすることによってIntellisenseなどIDEの動作を重くする可能性があるため ファイル中で標準ライブラリのどの機能を使用しているかがわかりにくくなり、プログラム全体の見通しが悪くなるため

      [[bits/stdc++.hは環境依存であり、開発用途で使うべきではない]]

    2. 最も致命的なのは、bits/stdc++.hを使うことによって得られる利点が「プログラムが短くなる」という点しか見当たらないことです。私は一般に、「プログラムが短くなる」とか「きれいに見えるようになる」などの理由でプログラムの動作に対する本質的な変更を加えることはバッドプラクティスであると考えます (もちろん、例外もあります)。

      [[bits/stdc++.hは環境依存であり、開発用途で使うべきではない]]

    3. でも環境依存って聞いたよ? bits/stdc++.hはlibstdc++固有の機能であり、Clangや CL.exe (VC++) のような他のコンパイラの標準ライブラリには同様のファイルは存在しません。 よって仮想Linux環境なしのWindowsや、自分のことをGCCだと思っている精神異常ClangがインストールされているMacでは通常このテクニックを使用することはできません。

      [[bits/stdc++.hは環境依存であり、開発用途で使うべきではない]]

    4. そもそも、bits/stdc++.hって何? GNUが開発するC++の標準ライブラリの実装であるlibstdc++のプリコンパイル済みヘッダを生成するためのソースファイルです。 具体的な中身はgccのソースリポジトリのlibstdc++-v3/include/precompiled/stdc++.hから参照することができます。見ると、CおよびC++の標準ライブラリに含まれるヘッダがすべてインクルードされており、このことから「#include <bits/stdc++.h>と書くとすべての標準ライブラリを一度にインクルードできる」という性質を持ちます。

      [[bits/stdc++.hとは何か]]

    1. El derecho a la ciudad es un medio para completar la ciudadanía y especialmente para que los sectores populares adquieran plena y realmente la ciudadanía, ser libres e iguales todos

      Ojo, es un medio para completa ciudadanía, ojo, la ciudadanía tampoco es algo estético

    1. Invoking PostSharp from the command line is no longer supported.

      PostSharp re-deprecated the CLI tool for AOP instrumentation :-(

    1. violencia de género

      «Todo acto de violencia sexista que tiene como resultado posible o real un daño físico, sexual o psíquico, incluidas las amenazas, la coerción o la privación arbitraria de libertad, ya sea que ocurra en la vida pública o en la privada».

    2. Esa “formación” del hombre, que lo conduce a una estructura de la personalidad de tipo psicopático

      No existe un perfil único de maltratador. Tampoco se trata de hombres agresivos ni de psicópatas. Nuestro estudio pone en cuestión los estereotipos relacionados hasta ahora con la conducta y los rasgos del maltratador, como puede ser el consumo de sustancias tóxicas y de alcohol, la vivencia de experiencias traumáticas en la edad infantil o los problemas psíquicos. En este último aspecto, los datos del patrón de personalidad de un grupo de maltratadores basados en el inventario clínico multiaxial Millon-II señalan a la compulsividad como rasgo más destacado de estas personas; no obstante, el percentil no supera el grado de normalidad, por lo que se descarta la posibilidad de una psicopatología.

  7. Nov 2021
    1. reinterpret_cast 运算符并不会改变括号中运算对象的值,而是对该对象从位模式上进行重新解释

      reinterpret_cast 在 c++ 中如何理解?

    1. we see that whatwe call “pointers” in C are simply addresses. Dereferencing a pointer involvescopying that pointer into a register, and then using this register in a memoryreference.

      dereference pointer 在 assembly code 中如何实现?

    2. C declaration Intel data type Assembly-code suffix Size (bytes)

      不同数据类型的 size 以及在 assembly 中的后缀?

  8. Oct 2021
    1. three concentric spheres: consensus, legitimate controversy, and deviance

      Hallin’s spheres

      Hallin divides the world of political discourse into three concentric spheres: consensus, legitimate controversy, and deviance. In the sphere of consensus, journalists assume everyone agrees. The sphere of legitimate controversy includes the standard political debates, and journalists are expected to remain neutral. The sphere of deviance falls outside the bounds of legitimate debate, and journalists can ignore it. These boundaries shift, as public opinion shifts.

    1. Postmodernist Theory. This theory was focus on associated with relativism on ideology in the maintenance of economic and political power. It also generally explain which is claim to be valid for all groups, cultures, traditions, or races.

      (file:///C:/Users/User/Downloads/A%20Review%20of%20Employment%20Relations%20Theories.pdf)

  9. Sep 2021
    1. Fundamentos pedagógicos. En el PEI de la institución pudimos identificar las tendencias pedagógicas del colegio universitario de socorro como lo son: el aprendizaje significativo- humanista y constructivista, al igual orientan contenidos al estudio del medio ambiente.

  10. Jul 2021
    1. PatientID: None

      KindredID: 1

      Case: Sex Unknown, Age Unknown, Ethnicity Unknown

      DiseaseAssertion: Adrenal pheochromocytoma

      FamilyInfo: The proband was part of a cohort of apparently sporadic cases of pheochromocytoma/ paraganglioma, implying this individual had no family history of VHL disease or pheochromocytoma.

      CasePresentingHPOs: HP:0006748 (Adrenal Pheochromocytoma)

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0002668 (Paraganglioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: RET, SDHB, SDHC, and SDHD

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: ex. p.R161Q (c.482G>A)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: ex. 182983, https://www.ncbi.nlm.nih.gov/clinvar/variation/182983/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: R161Q(c.482G>A)

      MultipleGeneVariants: N/A

  11. May 2021
    1. Ray C. Smallwood

      Smallwood worked as a director for Nazimova from 1914 through 1922, very little info available about him aside from his filmography - unclear how much of the films Nazimova directed herself as she was known for being a "backseat director" often taking over for the studio hired directors.

  12. Apr 2021
  13. Mar 2021
    1. Look no further than C++, where nearly every major software suite has its own strings, vectors, etc. implemented, frequently duplicating functionality already implemented in (1) STL, and (2) Boost. I seem to recall that the original Android Browser, for example, had no fewer than 5 kinds of strings on the C++ side of the code base, because it interfaced with several different systems and each had its own notion of what a string should be.
  14. Feb 2021
  15. Dec 2020
  16. Nov 2020
    1. You’ll learn how to cause stack overflows, illegal memory access, andother common flaws that plague C programs so that you know what you’re upagainst

      When you learn from "Learn C the Hard Way"

    Tags

    Annotators

    1. Mistakes programmers need to look out for

      • Programming is more about practicising than passive knowledge gain.
      • Understand the solutions solved/suggest by your peers, introspect on why he could solve it better and why you couldn't.
      • Be a perpetual learner.
      • Don't just reuse, reuse and add value.
      • Re-affirm and reconfirm your learning.
    1. Thanks for posting this helpful, well written article. Learning programming, or any other thing one takes up, requires you to sit at one place have a plan of action for your study.

      I was going through my Firefox bookmarks and I found article. I had read this article two years back and had commented that I found it to be useful. I read it back in May 2018. As of now, November 2020, my programming skills are still novice-level. I haven't implemented the ideas or followed suggestions given here.

      It has been 2 years and 5 months since I found this article to be relevant and it baffles me that I haven't taken action by making use of the knowledge given in this article. Two long years flew by. I guess reviewing my bookmarks is something that I will do more often.

      The article was posted on May 23, 2018 and I had stumbled on it the next day itself, i.e., May 24, 2018. This gets me thinking that we could finds solutions for problems(latest ones in this case) once we identify it, articulate it, hit the search button and just read stuff. I could presume that what happened next was that I misunderstood "finding a solution" to "realizing the solution", and perhaps became complacent or maybe there were more problems that didn't come to my awareness to identify and further find solutions. I'm not quite sure. Should I have identified my problems and googled more so that I could have learned C and C++ sooner?

      I wonder what held me back from taking action to accomplish and master something that usually takes not more that 5-6 months maximum.

    2. On learning programming

      • Master one first programming language first, before moving to the next.
      • Learn at a slow for the first two programming languages. This is important for beginners
      • Practising coding is more important than watching tutorials or reading books. You learn more by practising than by reading or watching videos.
      • Apart from tutorials, immitating open source projects is very important
      • Read others code and immitate it. You'll be surprised at how fast you're learning.
      • Make use of StackOverflow, Quora and programming subreddits.Ask questions there. Interact more.
      • Practice more. Write code from time to time. Debugging skills imporove with more coding practice.
      • Test your skills with quizzes, challenges and competitive programming
  17. Oct 2020
  18. Sep 2020
  19. Aug 2020
  20. May 2020
    1. Programming languages These will probably expose my ignorance pretty nicely.

      When to use different programming languages (advice from an Amazon employee):

      • Java - enterprise applications
      • C# - Microsoft's spin on Java (useful in the Microsoft's ecosystem)
      • Ruby - when speed is more important then legibility or debugging
      • Python - same as Ruby but also for ML/AI (don't forget to use type hinting to make life a little saner)
      • Go/Rust - fresh web service where latency and performance were more important than community/library support
      • Haskell/Erlang - for very elegant/mathematical functional approach without a lot of business logic
      • Clojure - in situation when you love Lisp (?)
      • Kotlin/Scala - languages compiling to JVM bytecode (preferable over Clojure). Kotlin works with Java and has great IntelliJ support
      • C - classes of applications (operating systems, language design, low-level programming and hardware)
      • C++ - robotics, video games and high frequency trading where the performance gains from no garbage collection make it preferable to Java
      • PHP/Hack - testing server changes without rebuilding. PHP is banned at Amazon due to security reasons, but its successor, Hack, runs a lot of Facebook and Slack's backends
  21. Jan 2020
    1. Chemically, europium’s reactions are similar to calcium. It is used in some superconductor alloys and in television screens, where it produces the red color.

      europium has been popularly used for the red flash and light in smart phones.

    1. In 1901, Eugène-Anatole Demarçay carried out a painstaking sequence of crystallisations of samarium magnesium nitrate, and separated yet another new element: europium.
    2. A soft, silvery metal that tarnishes quickly and reacts with water.
    1. The areas around phosphate facilities in central Florida usually consist of cattle ranches and agriculture with some residential areas as well. The surrounding flora absorb (uptake) the toxic elements caused by phosphate mining, through the root system into the leaves from reclaimed mined soils.

      how Phosphorus mines negatively affect the local communities around them.

    1. White phosphorus is a waxy, transparent solid. Its melting point is 44.1°C (111°F) and its boiling point is 280°C (536°F). It has a density of 1.88 grams per cubic centimeter. If kept in a vacuum, it sublimes if exposed to light.

      the properties of Phosphorus.

    1. somewhere at the interfaces between the solder balls and the nickel-phosphorous pad. Solders are ductile tin-based materials, but during soldering they chemically react with the solid metals being soldered — such as the nickel-phosphorous alloy — to form intermetallic compounds.

      How Phosphorus is used in a smartphone.

    1. The white allotrope can be produced using several different methods. In the industrial process, phosphate rock is heated in an electric or fuel-fired furnace

      This shows me how Phosphorus is refined and specifically how white Phosphorus is made and heated in the process.

    1. These are mined in Brazil, Canada, Finland, Russia, South Africa and Zimbabwe. Phosphate rock is mined mostly by surface methods using draglines and bucket wheel excavators for large deposits and power shovels or earthmovers for smaller deposits.

      This clip is about where Phosphorus is mined and how it is mined. Phosphorus is mined in many different places around the world.

    1. Alloys[edit] Antimony forms a highly useful alloy with lead, increasing its hardness and mechanical strength. For most applications involving lead, varying amounts of antimony are used as alloying metal. In lead–acid batteries, this addition improves plate strength and charging characteristics.[49][59] For sailboats, lead keels are used as counterweights, ranging from 600 lbs to over 8000 lbs; to improve hardness and tensile strength of the lead keel, antimony is mixed with lead between 2% and 5% by volume. Antimony is used in antifriction alloys (such as Babbitt metal),[60] in bullets and lead shot, electrical cable sheathing, type metal (for example, for linotype printing machines[61]), solder (some "lead-free" solders contain 5% Sb),[62] in pewter,[63] and in hardening alloys with low tin content in the manufacturing of organ pipes. Other applications[edit] Three other applications consume nearly all the rest of the world's supply.[48] One application is as a stabilizer and catalyst for the production of polyethylene terephthalate.[48] Another is as a fining agent to remove microscopic bubbles in glass, mostly for TV screens;[64] antimony ions interact with oxygen, suppressing the tendency of the latter to form bubbles.[65] The third application is pigments.[48] Antimony is increasingly being used in semiconductors as a dopant in n-type silicon wafers[66] for diodes, infrared detectors, and Hall-effect devices. In the 1950s, the emitters and collectors of n-p-n alloy junction transistors were doped with tiny beads of a lead-antimony alloy.[67] Indium antimonide is used as a material for mid-infrared detectors.[68][69][70]

      Potential uses in phone batteries and silicon wafers As semi conductors.

    1. University of Pennsylvania has designed a new, cost-effective approach to recycle Yttrium.

      can be recycled.

    1. this will eventually lead to increasing concentrations in humans, animals and soil particles.

      blood clots could be made in a human or animal.

    1. Loss of landscape/aesthetic degradation, Soil contamination, Soil erosion, Deforestation and loss of vegetation cover, Surface water pollution / Decreasing water (physico-chemical, biological) quality, Mine tailing spills

      these are the problems that the community and environment are suffering because of the mines.

    1. Lead isotopes are the end products of each of the three series of naturally occurring radioactive elements.

      lead is radioactive, so when you touch it, it can effect your body.

    1. Keep work areas clean. Do not use compressed air to remove lead dust.

      when you use compressed air to remove lead dust, can blow the lead into the air, causing people to breath it in.

    1. Most of the antimony mined each year comes from China, which supplies over three-quarters of the world’s total. The remainder is from Russia, South Africa, Tajikistan, Bolivia, and a few other countries, including the United States. Some antimony is produced as a by-product of smelting ores of other metals, mainly gold, copper and silver, in countries such as the United States, Canada, and Australia.

      Top antimony producing countries

    1. Antimony is rarely found in its native (as an element) state. Instead, it usually occurs as a compound. The most common minerals of antimony are stibnite, tetrahedrite, bournonite, boulangerite, and jamesonite.

      How antimony is found in nature

    2. Antimony is a moderately active element. It does not combine with oxygen in the air at room temperature. It also does not react with cold water or with most cold acids. It does dissolve in some hot acids, however, and in aqua regia. Aqua regia is a mixture of hydrochloric and nitric acids. It often reacts with materials that do not react with either acid separately.

      Chemical properties of antimony

    3. Antimony is a silvery-white, shiny element that looks like a metal. It has a scaly surface and is hard and brittle like a non-metal. It can also be prepared as a black powder with a shiny brilliance to it. The melting point of antimony is 630°C (1,170°F) and its boiling point is 1,635°C (2,980°F). It is a relatively soft material that can be scratched by glass. Its density is 6.68 grams per cubic centimeter.

      Physical properties of antimony

    1. Occupational exposure may cause respiratory irritation, pneumoconiosis, antimony spots on the skin and gastrointestinal symptoms. In addition antimony trioxide is possibly carcinogenic to humans.

      Negative health effects of repeated exposure to antimony

    1. Antimony is used in the electronics industry to make some semiconductor devices, such as infrared detectors and diodes. It is alloyed with lead or other metals to improve their hardness and strength. A lead-antimony alloy is used in batteries. Other uses of antimony alloys include type metal (in printing presses), bullets and cable sheathing. Antimony compounds are used to make flame-retardant materials, paints, enamels, glass and pottery.

      Uses of antimony in technology

    1. large amount of waste rock, tailings, and smelting slags are produced during the Sb mining, processing, and smelting. These are partly used for filling the underground voids and piled up in the waste slack yard. The tailings produced in mineral processing are piped to the tailings dam located in the southwest of the mining area, which is located in the natural depression between two mountain bodies in the southwest of the mining area. Downstream is a large area of farmland, at risk from contamination from tailings release.

      What happens to waste produced during Sb refining.

    1. Europium has no known biological role. Europium salts could be mildly toxic by ingesiton, but its toxicity has not been fully investigated.

      Health and Community Problems

    2. Europium poses no environmental threath to plants or animals. The metal dust presents a fire and explosion hazard.

      Environmental Problems

    1. Europium has a strong tendency to absorb neutrons, making it useful in nuclear power production. A nuclear power plant produces electricity from the energy released by nuclear fission. Slow-moving neutrons collide with uranium or Plutonium atoms, breaking them apart and releasing energy as heat. The amount of energy produced in a nuclear power plant is controlled by the number of neutrons present. Europium is used to absorb neutrons in this kind of control system. Chemical properties Europium is the most active of the lanthanides. It reacts quickly with water to give off hydrogen. It also reacts strongly with oxygen in the air, catching fire spontaneously. Scientists must use great care in handling the metal.

      Properties

    2. Europium is prepared by heating its oxide with lanthanum metal: Europium metal is quite expensive to make and sells for about $3,000 to $4,500 a kilogram ($1,350 to $2,000 a pound).

      Refining

    1. europium are crucial to your iPhone’s function – they’re used in the phone’s battery, as well as to help give the display screen colour and make the phone vibrate when you get a text,

      Needed for normal function in Iphone.

    1. a relatively poor conductor of electricity

      lead is a poor electricity conductor but good and used in phone batteries.

    1. A 2009 study published in PLOS One concluded that the global warming potential of mining and processing nickel was the eighth highest of 63 metals over the previous year.

      The mining and processing of nickel has one of the biggest effects on global warming out of 63 metals.

    1. The pond, owned by the Inner Mongolia Baotou Steel Rare-Earth Hi-Tech Company, or Baotou Steel, lacks a proper lining and for the past 20 years its toxic contents have been seeping into groundwater, according to villagers and state media reports.

      Lanthanum Toxins have been leaking into the ground water which people use for tap water.

    1. Damage to water sources that residents attribute to mining, as well as increased demand due to population migration to mining sites, reduces communities’ access to water for drinking, washing and cooking. Women, who are primarily responsible for fetching water, are forced to walk longer distances or wait for long periods to obtain water from alternative sources. The dust produced by bauxite mining and transport smothers fields and enters homes, leaving families and health workers worried that reduced air quality threatens their health and environment.

      Mining is contaminating our water sources and water is one of the most important things for survival.

    1. How much money does this machinery cost i know it cant be cheap with how huge these things are

    2. Mining can include extraction of metals and minerals, like coal, diamond, gold, silver, platinum, copper, tin and iron. Mining can also include other things like oil and natural gas.

      How do you mine gas?

    1. Environmental impacts of mining can occur at local, regional, and global scales through direct and indirect mining practices.
    1. Tin mining on and offshore off Bangka island has a devastating effect on its environment. 

      Good information about environmental issues

  22. Jul 2019
  23. Jun 2019
    1. capital

      is a sum of money provided to a company to further its business objectives. The term also can refer to a company's acquisition of long-term assets such as real estate, manufacturing plants, and machinery.

    1. Computer Revolution

      Computer Revolution also called "Digital Revolution" refers to where the technology is very popular and its used by people around the world.

  24. May 2019
    1. Cities such as Lubumbashi and Likasi face serious air pollution because of the thousands of trucks that travel to and from the mines throughout the day. Chronic exposure to such dusts can lead to severe lung diseases. Water is unfit for human consumption and agriculture because soil and water in the immediate vicinity of the mines are polluted by discharges of wastewater.
    1. Tin is extracted by roasting the mineral casseterite with carbon in a furnace to approximately 2500 degrees Fahrenheit. The next step involves leaching with acid or water solutions to remove impurities. Electrostatic or magnetic separation helps to remove any heavy metal impurities. Compared to the processes used in the past, today’s advanced technology allows the industry to produce 10 times more tin. General Kinematics’ vibratory equipment innovation has made them a leader in the production of mining equipment for more than 45 years. A great many of the challenges faced by miners can be solved with the use of top quality vibratory equipment. With a proven track record in 35 countries, General Kinematics is making their mark on the future of tin mining.

      tin refining

    1. Lithium-ion batteries are key components for most consumer electronics, from cellphones and laptops to electric cars.

      the ions in the lithium is the competent that is found in phones.

    1. The governments of Ethiopia and Russia are set to expand business ties on multiple frontiers, ranging from nuclear energy development to Russians investment in mining in Ethiopia.

      That's interesting!

    1. the government reported the discovery of large gold deposits in Lege Dimbi, also in Sidamo.

      This shows that there was gold in Ethiopia!

    1. Due to its electrical conductivity, copper is used in electronics, cars, and wires. This makes copper critical for highly developed countries.

      true stuuff

    2. Developing economies’ copper demand has steadily grown over the last decades, fueling economic and social improvement. By 2011, China already represented 40% of the demand.

      Why does China need so much.

    3. Codelco is a state-owned Chilean mining company and the world’s largest copper producer. Based on their annual report and USGS statistics, they produced ~10% of the world’s copper in 2015 and own 8% of global reserves. They are also a large producer of greenhouse gas emissions. Last year, Codelco produced 3,2 t CO2e/millions tmf from both indirect and direct effects, and in 2011 it consumed 12% of the total national electricity supply.

      Goddamn they should start recylcling

    4. Copper is a key driver of growth and economic wealth for Chile.
    5. What can Codelco do, then? In addition to cost cutting, Codelco could consider entering the recycling copper industry, as energy prices are driving “virgin” copper costs up.

      thats good

    6. copper mining significantly contributes to climate change.
    1. Shaida’s mineralisation has been described as a porphyry copper deposit.
    2. The Shaida Copper Mine is situated in the western region of Afghanistan in the Adraskan District of the Herat province, 65 km South-West of the city of Herat and 50 km SSW of Gozareh

      Where it is located.

    1. Problems stemming from artisanal mining include disruption of families, mining-related illnesses, environmental damage, child labor, prostitution and rape.

      problems

    1. Neodymium is chiefly obtained from monazite and bastnasite, where it occurs as an impurity. It is mined in the USA, China, Russia, Australia, and India.

      some info about the ore and where it is mined

    1. The Neodymium metal element is initially separated from refined Rare Earth oxides in an electrolytic furnace. The "Rare Earth" elements are lanthanoids (also called lanthanides) and the term arises from the uncommon oxide minerals used to isolate the elements

      how neodymium is refined

    1. It is a preferred component in lithium-ion batteries that power laptops, cell phones, and electric vehicles.

      what it's used for

    2. The country’s economy is completely dependent on mining. Many poor families are completely dependent on their children working the mines. That $9/day is hard for a child to reject

      its weird how people are able to exploit these people legally, and if not legally than how have people not made an effort to stop them?

    3. Walt describes how the multibillion-dollar industry, that has made some people outside Africa really really rich, is not known to workers like Lukasa. He just sells his haul to Chinese traders who have seen their profits increase 400% over the last two years.

      I wonder if the people at the top of the company even know that this is going on with there "employees"

    4. Especially one child named Lukasa who gets up at 5 AM to work a 12-hour day for less than $9

      how is this allowed

    1. The Indonesian islands of Bangka and Belitung produce over 90 percent of the country's tin. President Joko Widodo has vowed to end illegal mining operations that put the lives of men and children in danger.

      That's a lot of tin! Glad the president is putting some safer laws regarding tin!

    1. 1China110,0002Indonesia95,2003Peru23,6684Bolivia19,3005Brazil12,0006Myanmar11,0007Australia6,4748Viet Nam5,4009Malaysia3,70010Congo, The Democratic Republic Of The3,00011Rwanda1,90012Lao People's Democratic Republic80013Nigeria57014Russian Federation42015Thailand20016Uganda4017Portugal4018Burundi20 Source: United States Geological Survey (USGS) Minerals Resources Program

      Tin production

    1. The metal is a solid material and metallic gray in color. Furthermore, the metal possess high melting and boiling points. At standard temperature and pressure, cobalt is not readily oxidized, which means it does not easily lose electrons from its surface.

      A description of cobalt.

    2. cobalt can be found among the d-block elements, transition metals. It has the chemical abbreviation Co and atomic number 27.

      Where to find cobalt on periodic table and cobalt's atomic number.

    1. Monseigneur de Hemptinne watched Yeke people working at Dikuluwe as late as 1924. They worked in the dry season and stopped when the first rains arrived. The mining camp was near a stream where millet could be planted. Women and children collected malachite from the surface, while men used iron picks to excavate pits and shafts, using fire to crack the rocks when needed. The mines were between 10 metres (33 ft) and 15 metres (49 ft) deep with galleries up to 20 metres (66 ft) long. The ore would be sorted and then taken to a nearby stream for concentration before being smelted

      info about how mines work

    2. The Katanga, or Shaba, copperbelt in the DRC is a belt about 70 kilometres (43 mi) wide and 250 kilometres (160 mi) long

      how large the coperbelt is

    1. his is the second round of mineral licensing conducted by the Afghan government, which in 2008 gave Metallurgical Corp of China rights to the Aynak copper deposit

      They seem to offer up mining contracts very easily.

    1. This cobalt is found in every lithium-ion rechargeable battery on the planet

      I wonder if there is a replacement for the cobalt

    2. Arthur. The 16-year-old boy joined a group of young men who spent two months digging a tunnel 26m straight down before they hit a heterogenite vein. Now they descend into darkness each day, spending up to 24 hours at a time in narrow tunnels unable to stand, hacking away for cobalt. Every minute is suffused with dread, because many tunnels have collapsed in Kasulo, burying alive everyone inside.
    3. Elodie is 15. Her two-month-old son is wrapped tightly in a frayed cloth around her back. He inhales potentially lethal mineral dust every time he takes a breath. Toxicity assaults at every turn; earth and water are contaminated with industrial runoff, and the air is brown with noxious haze. Elodie is on her own here, orphaned by cobalt mines that took both her parents. She spends the entire day bent over, digging with a small shovel to gather enough cobalt-containing heterogenite stone to rinse at nearby Lake Malo to fill one sack. It will take her an entire day to do so, after which Chinese traders will pay her about $0.65 (50p). Hopeless though it may be, it is her and her child’s only means of survival.
    1. Xiamen Tungsten and Xiamen Sanhong Molybdenum would invest more than 2 billion yuan (US$314.13 million) in the surveying and subsequent exploitation of the tungsten ore mine.
    2. The proved reserve of the mine has exceeded Jiangxi's total amount of available tungsten reserves, and has a potential economic value of more than 300 billion yuan (US$47.13 billion).
    3. The mine is located in Dahutang Area, Wuning County, Jiujiang City
  25. Feb 2019
    1. mas de reconhecer que, sem os votos desse contingente de remediados de ascensão recente (talvez não fosse exagero qualificá-los como semipobres), não haveria extrema direita no poder.

      Isso aqui é interessantíssimo, inclusive para estudos futuros: se uma classe "sobe" no estrato social, como surgiu a Classe C aqui, qual a tendência de voto dela? Teria o PT dado o próprio tiro no pé? Há algo que fazer pra reverter esse quadro?

  26. Nov 2018
    1. Metop-C Satellite :The Metop-C satellite, launched from the European Space Port in Kourou, French Guiana, is the third and last satellite of the Metop series, which forms the space segment of the EUMETSAT Polar system.
  27. Oct 2018
  28. Jul 2018
  29. Jun 2018
    1. The idea of the numeric_limits<T> trait class is due to John Barton and Lee Nackman

      numeric_limits<T>

  30. May 2018
    1. One group received citalopram (up to 60 mg/day) plus vitamin C (up to 1,000 mg/day). The other group received citalopram plus placebo.

      Considering the results of other trials with different depression severities and vitamin C dosage and forms (sustained release) (covered in this article), it is astonishing that the researchers used such a single, modest, non-sustained release dose.

      The plasma peak of vitamin C is obtained a few hours after the administration. For the rest of the day, the subject is back to baseline.

      This is common knowledge.

  31. Apr 2018
    1. Another way to look at it: The .NET Framework has essentially two forks. One fork is provided by Microsoft and is Windows only. The other fork is Mono which you can use on Linux and Mac. With .NET Core we’re able to develop an entire .NET stack as a full open source project. Thus, having to maintain separate forks will no longer be necessary: together with the Mono community we’ll make .NET Core great for Windows, Linux and Mac OSX. This also enables the Mono community to innovate on top of the leaner .NET Core stack as well as taking it to environments that Microsoft isn’t interested in.

      .NET core开源模式开发,适配三个平台 最终会取代.NET framework和mono

  32. Mar 2018