Laboratory apparatus and safety measures
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This document provides information about common laboratory equipment, their uses, and safety procedures. It lists and describes various pieces of equipment like beakers, Bunsen burners, burets, clay triangles, droppers, funnels, flasks, graduated cylinders, hot plates, pipets, ring stands, test tubes, holders, tongs, volumetric flasks, wash bottles, watch glasses, wire gauze, microscopes, balances, and fume hoods. It also outlines important safety measures and prohibited behaviors in the laboratory, such as wearing protective equipment, cleaning up, and reporting any accidents.
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The document lists and describes common laboratory apparatus used in chemistry experiments, including beakers, conical flasks, measuring cylinders, mortar and pestles, test tubes, test tube holders, racks, bungs, watch glasses, stirring rods, funnels, pipettes, spatulas, forceps, scalpels, burettes, Bunsen burners, tripods, gauze, heatproof mats, clay triangles, evaporating dishes, crucibles, crucible tongs, clamp stands, litmus paper, and universal indicator. Each apparatus has a specific use, such as holding liquids, measuring volumes, grinding substances, heating materials, or testing pH.
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This document provides information about common laboratory equipment found in chemistry labs, including:
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This document provides information about common laboratory equipment found in chemistry labs, including:
- It lists and provides photos of common lab equipment like balances, beakers, Bunsen burners, burets, crucibles, dropper pipets, evaporating dishes, forceps, funnels, goggles, graduated cylinders, pinch clamps, pipets, scoopulas, stirring rods, thermometers, test tubes, and utility clamps.
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This presentation contains brief information about Laboratory hazards, safety measures and identification and handling of apparatus
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Laboratory tools are used to make precise and accurate measurements in labs. Some common tools include triple beam balances for measuring mass, graduated cylinders for measuring liquid volumes, test tubes for storing and heating liquids, beakers for storing and measuring liquid volumes, and rulers, meter sticks, and tape measures for measuring length. Other tools shown are spring scales for measuring weight, thermometers for measuring temperature, microscopes for viewing small objects, telescopes for viewing distant objects, and stopwatches for measuring time.
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This document provides descriptions and proper uses of common laboratory equipment used in chemistry labs. It describes various pieces of glassware like beakers, erlenmeyer flasks, test tubes, and funnels that are used to contain liquids and solids. It also outlines equipment for heating substances like burners, crucibles, and ring stands. Other tools described include balances, pipettes, clamps, and spatulas for accurately manipulating and transferring chemicals. Safety precautions are noted for several pieces of equipment.
Instructional guide for laboratory
I have attached here with 104 slides about Laboratory equipments and uses, Common laboratory techniques, Substances available in a laboratory (I. Solid II. Liquids III.Metals) Safety symbols and Lab safety
Chemistry laboratory safety rules
The document outlines several important safety rules for students to follow when conducting experiments in a chemistry laboratory. Students must wear appropriate eye protection, protective clothing, and closed-toe shoes at all times in the lab. Dangerous activities like eating, drinking, applying cosmetics and tasting chemicals are prohibited. Students must also follow proper procedures when handling chemicals, equipment and heat sources to avoid accidents and injuries. Before leaving the lab, students must clean up their work areas and dispose of any waste properly.
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Bob Reedy - Nitrate in Texas Groundwater.pdf
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https://www.etran.rs/2024/en/home-english/The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Equivariant neural networks and representation theory
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
ESR spectroscopy in liquid food and beverages.pptx
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
Phenomics assisted breeding in crop improvement
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
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一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
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◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...
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hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skillsImmersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
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GBSN - Biochemistry (Unit 6) Chemistry of Proteins
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aziz sancar nobel prize winner: from mardin to nobel
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Laboratory apparatus and safety measures
- 2. What is a laboratory apparatus ? Equipment for scientific research and experiments.
- 3. Examples of Laboratory a Apparatus and its uses
- 4. Beakers are useful as a reaction container or to hold liquid or Solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations.
- 5. Bunsen Burners are sources of heat.
- 6. Burets are for addition of a precise volume of liquid. The volume of liquid added can be determined to the nearest 0.01 mL with practice.
- 7. Clay Triangles are placed on a ring attached to a ring stand as a support for a funnel, crucible, or evaporating dish.
- 8. Droppers are for addition of liquids drop by drop
- 9. Glass Funnels are for funneling liquids from one container to another or for filtering when equipped with filter paper.
- 10. Erlenmeyer Flasks are useful to contain reactions or to hold liquid samples. They are also useful to catch filtrates.
- 11. Graduated Cylinders are for measurement of an amount of liquid. The volume of liquid can be estimated to the nearest 0.1 mL with practice.
- 12. Hot Plates can also be used as sources of heat when an open flame is not desirable.
- 13. Pipets are used to dispense small quantities of liquids.
- 14. Ring stand with Rings are for holding pieces of glassware in place.
- 15. Test Tubes are for holding small samples or for containing reactions
- 16. Test tube holders are for holding test tubes when tubes should not be touched
- 17. Tongs are similar in function to forceps but are useful for larger items.
- 18. Volumetric Flasks are used to measure precise volumes of liquid or to make precise dilutions.
- 19. Wash bottles are used for dispensing small quantities ofdistilled water.
- 20. Watch glasses are for holding small samples or for covering beakers or evaporating dishes.
- 21. Wire Gauze on a ring supports beakers to be heated by Bunsen burners
- 22. Microscope is an optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects, especially of objects too small to be seen by the unaided eye
- 24. Balances are used to determine the mass of a reagent or object.
- 25. Spectrophoto meters are used to measure the absorbance or transmittance of a liquid sample.
- 26. Fume Hoods are used to ventilate noxious or harmful gases.
- 28. Keep bags away from burners Never eat, drink, or smoke while working in the laboratory. Tie back long hair Read labels carefully. Disposal - Students are responsible for the proper disposal of used material if any in appropriate containers. Turn off gas when not in use Wear gloves when using any hazardous or toxic agent. Wear safety glasses/goggles Store chemicals on shelves with labels Clean up your work area before leaving.
- 29. O Do not engage in practical jokes or boisterous conduct in the laboratory. O Never run in the laboratory. O The use of personal audio or video equipment is prohibited in the laboratory. O The performance of unauthorized experiments is strictly forbidden. O Never work in the laboratory without the supervision of an instructor. O Always perform the experiments or work precisely as directed by your instructor. O Immediately report any spills, accidents, or injuries to your instructor. O Never leave experiments while in progress. O Make sure no flammable solvents are in the surrounding area when lighting a flame. O Do not leave lit Bunsen burners unattended. O Turn off all heating apparatus, gas valves, and water faucets when not in use.
- 31. THANK YOU