There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

Data Mining Practical Machine Learning Tools and Techniques

Soil Chemical Analysis

This Review summarizes the simultaneous transmission of several independent spatial channels of light along optical fibres to expand the data-carrying capacity of optical communications. Recent results achieved in both multicore and multimode optical fibres are documented.

/pdf/space-division-multiplexing-in-optical-fibres-9acl86j916.pdf

Space-division multiplexing in optical fibres

Traditional engineering instruction is deductive, beginning with theories and progressing to the applications of those theories Alternative teaching approaches are more inductive Topics are introduced by presenting specific observations, case studies or problems, and theories are taught or the students are helped to discover them only after the need to know them has been established This study reviews several of the most commonly used inductive teaching methods, including inquiry learning, problem-based learning, project-based learning, case-based teaching, discovery learning, and just-in-time teaching The paper defines each method, highlights commonalities and specific differences, and reviews research on the effectiveness of the methods While the strength of the evidence varies from one method to another, inductive methods are consistently found to be at least equal to, and in general more effective than, traditional deductive methods for achieving a broad range of learning outcomes

Inductive Teaching and Learning Methods: Definitions, Comparisons, and Research Bases

Quantitative studies concerning abnormalities and hemolytic activity was performed under laboratory conditions for larvae of Spodoptera litura Fabricius (Lepidoptera: Noctuidae). Four insecticides (decarafluron 50EC, emamectin benzoate 1.9EC, chlorpyrifos 40EC and abamectin 1.8EC) were studied for the immunosuppressive activity of 5 instar larvae of S. litura. Immunosuppression was assessed by examining changes in total heamocytes count and differential heamocytes count. Newly ecdysed 5 instar larvae (normal) total heamocytes count of 1.6x10 cells/mm. But a great decline in total heamocytes count was observed by the application of decarafluron and drastically increase due to the application of abamectin. From five different types of heamocytes, proheamocytes were found the most sensitive to insecticidal stress and rupturing of the cell wall was identified as the most common abnormality. The observations suggest that insecticides are capable of inducing multiple forms of cell death in S. litura larvae.

https://www.entomoljournal.com/archives/2019/vol7issue3/PartJ/7-2-363-612.pdf

Quantitative changes of heamocytes in Spodoptera litura Fab. (Lepidoptera: Noctuidae) larvae in response to different insecticides

Discrimination in compensation for minority groups and individuals with regard to gender, physical disability, religion, and culture affects inclusion in an organization. This study is a combinatio...

Impact of Compensation on Inclusive Organizations

Toxicity Assessment and Phytostabilization of Contaminated Soil by Using Wheat Straw-derived Biochar in Tomato Plants

The Mitsunobu reaction plays a vital part in organic chemistry due to its wide synthetic applications. It is considered as a significant reaction for the interconversion of one functional group (alcohol) to another (ester) in the presence of oxidizing agents (azodicarboxylates) and reducing agents (phosphines). It is a renowned stereoselective reaction which inverts the stereochemical configuration of end products. One of the most important applications of the Mitsunobu reaction is its role in the synthesis of natural products. This review article will focus on the contribution of the Mitsunobu reaction towards the total synthesis of natural products, highlighting their biological potential during recent years.

/pdf/mitsunobu-reaction-a-powerful-tool-for-the-synthesis-of-1h3ijy7u.pdf

Mitsunobu Reaction: A Powerful Tool for the Synthesis of Natural Products: A Review

Ge-doped (Cu0.5Tl0.5)Ba2Ca3(Cu4-yGey)O12-δ (y = 0, 0.3, 0.6 and 0.9) superconductors have been synthesized at normal pressure through solid state reaction method. Ge has been doped in the CuO2 planes constituting the superconducting block of these structures. In the as-prepared samples, a suppression of the critical temperature is observed with increased Ge concentration. The suppression of the critical temperature can be attributed to the decreased number of carriers due to their localization at Ge4+ ions. Ge-doped post-annealed samples have shown enhancement in the critical temperature as well as magnitude of diamagnetism. Oxygen annealing seems to have replenished the charge carries through the process of hole doping in CuO2/GeO2 planes, thereby bringing the carrier density closer to the optimum level. Oxygen related phonon modes have also been investigated. A shift in peak positions of the apical and planar oxygen related modes have been observed while modes associated with Oδ oxygen atoms seem stable in both cases of Ge doping and oxygen annealing.

Muhammad Irfan

Papers

Quantitative changes of heamocytes in Spodoptera litura Fab. (Lepidoptera: Noctuidae) larvae in response to different insecticides

Impact of Compensation on Inclusive Organizations

Toxicity Assessment and Phytostabilization of Contaminated Soil by Using Wheat Straw-derived Biochar in Tomato Plants

Mitsunobu Reaction: A Powerful Tool for the Synthesis of Natural Products: A Review

HOW Ge DOPING AFFECTS THE SUPERCONDUCTING PROPERTIES OF (Cu, Tl)-1234 SUPERCONDUCTORS