26. soil problems By Allah Dad Khan

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Soil problems are a major issue facing farmers worldwide. Poor soil quality can lead to lower crop yields and malnutrition. Improving soil health through practices like crop rotation, cover cropping, and limiting chemical fertilizers can help reverse degradation and boost agricultural productivity.

Science

The document discusses various sources of energy, dividing them into conventional and non-conventional sources. Conventional sources include fossil fuels like coal, petroleum and natural gas. These are used in thermal power plants to produce electricity. Hydro power plants use the kinetic energy of flowing water for electricity. Non-conventional sources include solar, wind, biomass, tidal, geothermal and nuclear energy. These provide alternatives to fossil fuels and many are renewable but also have challenges like cost, land use or waste disposal.

27. Energy resources ( Biofuels ) A Series of Presentation to Class By Mr....

Mr.Allah Dad Khan

26. Energy Sources (Biodiesel from Algae )A Series of Presentation to Class...

Mr.Allah Dad Khan

24. Energy sources ( Renewable energy sources) A Series of Presentation to ...

Mr.Allah Dad Khan

21. Energy sources ( Clean coal non renewable energy ) A Series of Prese...

Mr.Allah Dad Khan

20. Energy sources ( Biomass) A Series of Presentation to Class By Mr. All...

Mr.Allah Dad Khan

19. Energy sources ( Wind energy under water windmill) A Series of Presentat...

Mr.Allah Dad Khan

18. Energy sources ( Wind energy ) A Series of Presentation to Class By Mr...

Mr.Allah Dad Khan

17. Energy sources ( Tidal energy waves facts) A Series of Presentation to ...

Mr.Allah Dad Khan

15. Energy sources ( Fourteen main advantages and disadvantages of tidal en...

Mr.Allah Dad Khan

Tidal energy is a renewable source of energy that harnesses the power of tides. It has several advantages, including being renewable as tides are driven by the gravitational pull of the moon and sun, being a green energy source that doesn't emit greenhouse gases, and having a predictable output. However, tidal energy also has disadvantages such as potentially impacting the environment, only being available when tides are surging for around 10 hours per day so requiring effective energy storage, and being an expensive new technology that is not yet cost-effective.

14 . Energies sources ( Tidal energy renewable energy ) A Series of Presen...

Mr.Allah Dad Khan

3D Hybrid PIC simulation of the plasma expansion (ISSS-14)

David Osipyan

BREEDING METHODS FOR DISEASE RESISTANCE.pptx

RASHMI M G

Recently uploaded

3D Hybrid PIC simulation of the plasma expansion (ISSS-14)

David Osipyan

BREEDING METHODS FOR DISEASE RESISTANCE.pptx

RASHMI M G

Nucleic Acid-its structural and functional complexity.

Nistarini College, Purulia (W.B) India

THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...

Abdul Wali Khan University Mardan,kP,Pakistan

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 skills

Bob Reedy - Nitrate in Texas Groundwater.pdf

Texas Alliance of Groundwater Districts

The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx

MAGOTI ERNEST

Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024). Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).

Nucleophilic Addition of carbonyl compounds.pptx

SSR02

Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general. Carbonyls undergo addition reactions with a large range of nucleophiles. Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen. Electronic effects (inductive effects, electron donation) have a large impact on reactivity. Large groups adjacent to the carbonyl will slow the rate of reaction. Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.

Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...

University of Maribor

The debris of the ‘last major merger’ is dynamically young

Sérgio Sacani

The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the ‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space, because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago. We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data 1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’ did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within the last few Gyr, consistent with the body of work surrounding the VRM.

Randomised Optimisation Algorithms in DAPHNE

University of Maribor

Eukaryotic Transcription Presentation.pptx

RitabrataSarkar3

What is greenhouse gasses and how many gasses are there to affect the Earth.

moosaasad1975

Deep Software Variability and Frictionless Reproducibility

University of Rennes, INSA Rennes, Inria/IRISA, CNRS

The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions. Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability. Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields. I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating). I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems. Exposé invité Journées Nationales du GDR GPL 2024

8.Isolation of pure cultures and preservation of cultures.pdf

by6843629

Applied Science: Thermodynamics, Laws & Methodology.pdf

University of Hertfordshire

When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best. Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level. Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.

ESR spectroscopy in liquid food and beverages.pptx

PRIYANKA PATEL

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.

Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...

AbdullaAlAsif1

The pygmy halfbeak Dermogenys colletei, is known for its viviparous nature, this presents an intriguing case of relatively low fecundity, raising questions about potential compensatory reproductive strategies employed by this species. Our study delves into the examination of fecundity and the Gonadosomatic Index (GSI) in the Pygmy Halfbeak, D. colletei (Meisner, 2001), an intriguing viviparous fish indigenous to Sarawak, Borneo. We hypothesize that the Pygmy halfbeak, D. colletei, may exhibit unique reproductive adaptations to offset its low fecundity, thus enhancing its survival and fitness. To address this, we conducted a comprehensive study utilizing 28 mature female specimens of D. colletei, carefully measuring fecundity and GSI to shed light on the reproductive adaptations of this species. Our findings reveal that D. colletei indeed exhibits low fecundity, with a mean of 16.76 ± 2.01, and a mean GSI of 12.83 ± 1.27, providing crucial insights into the reproductive mechanisms at play in this species. These results underscore the existence of unique reproductive strategies in D. colletei, enabling its adaptation and persistence in Borneo's diverse aquatic ecosystems, and call for further ecological research to elucidate these mechanisms. This study lends to a better understanding of viviparous fish in Borneo and contributes to the broader field of aquatic ecology, enhancing our knowledge of species adaptations to unique ecological challenges.

mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt

HongcNguyn6

Medical Orthopedic PowerPoint Templates.pptx

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Nucleic Acid-its structural and functional complexity.

THEMATIC APPERCEPTION TEST(TAT) cognitive abilities, creativity, and critic...

Bob Reedy - Nitrate in Texas Groundwater.pdf

The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptx

Nucleophilic Addition of carbonyl compounds.pptx

Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...

The debris of the ‘last major merger’ is dynamically young

Randomised Optimisation Algorithms in DAPHNE

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What is greenhouse gasses and how many gasses are there to affect the Earth.

Deep Software Variability and Frictionless Reproducibility

8.Isolation of pure cultures and preservation of cultures.pdf

Applied Science: Thermodynamics, Laws & Methodology.pdf

ESR spectroscopy in liquid food and beverages.pptx

Unlocking the mysteries of reproduction: Exploring fecundity and gonadosomati...

mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt

Medical Orthopedic PowerPoint Templates.pptx

ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptx