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Resonance,2023年
Amitabh Joshi
LicenseType:Others 
The last four decades of the nineteenth century, between the publication of Darwin's On the Origin of Species in 1859 and the rediscovery of Mendel's work by Carl Correns, Erich von Tschermak and Hugo de Vries in 1900, were quite tumultuous for biology. Our understanding of the living world was greatly enhanced, both in detail and conceptual nuance, during this period, especially with regard to heredity, development, and evolution. The German biologist August Weismann (see accompanying ArticleinBox for a biographical sketch) was one of the most important figures in biology during those eventful decades and is considered by many to be the most significant evolutionist in the first fifty years after Darwin. He is perhaps best known for his opposition to the admissibility of any inheritance of acquired characteristics. This was based on his notion of the sequestration of germline cells (that would eventually give rise to gametes) early in embryonic development, making it impossible for changes in somatic cells to be transmitted to offspring. However, his work also addressed many other fundamental issues in heredity, development and evolution.
2 Characterising Subgroups of a Group [期刊论文]
Resonance,2023年
Kapil Hari Paranjape
LicenseType:Others 
In Category Theory, we try to characterise mathematical objects via "structure preserving maps" which are also called morphisms. This contrasts with a more settheoretic approach where sets are characterised by the elements which belong to them. The following elementary question about the subgroups of a group G arose in the context of a course on Category Theory.
Resonance,2023年
Anantha Hegde, Adarsh Kumar, Adhip Agarwala, Bhaskaran Muralidharan
LicenseType:Others 
Geared as an invitation for undergraduates, beginning graduatestudents, we present a pedagogical introduction to onedimensional topological phases—in particular, the Su–Schrieffer–Heeger model. In the process, we delve upon ideas ofentanglement using the correlator method and the vonNeumanndensitymatrix method, geometric phase, polarization,transport signatures and the role of electronelectron interactions.Through handson numerical experiments, whose codesare shared, we try to drive home the message why a programof simulating quantum electronics with topological toy modelsis the storehouse for discovering fantastic physics ideas.
4 Diet: The Balancing Act [期刊论文]
Resonance,2023年
Sheel Sharma, Deepika Dhawan
LicenseType:Others 
A balanced diet is a blend of quantity and quality of foodseaten to support an individual’s health and wellbeing. Thisnarrative review aims to deliver a simplified version of the2020 dietary guidelines by the Indian Council of Medical Researchand the National Institute of Nutrition (ICMRNIN).The review comprehensively analyses the latest ICMRNIN2020 dietary guidelines for healthy adults. The approach toachieving a balanced diet is focused on the inclusion of a plant baseddiet with special significance placed on dietary fibreand antioxidants. The review presents the updated macronutrientand micronutrient requirements, with the spotlight hasbeen on the types of food to be taken or the foodbased approach.This review also highlights food groups and gut nutritionand provides dietary tips on wholesome meals to promoteoptimal health.
Resonance,2023年
Radhendushka Srivastava
LicenseType:Others 
Karl Pearson’s statistical innovations have led to the developmentof several mathematical statistics techniques. His mathematicalcontributions to the theory of evolution include afamily of univariate probability distributions (referred to asPearson’s family of distributions), which is found to be usefuleven today for fitting on data arising from various scientificdisciplines (physics, biology, anthropology, economics,etc.). Frequency curve (histogram) for continuous data, acommonly used nonparametric density estimator, owes itsorigin to him. Pearson’s correlation coefficient is a populardescriptive measure of the linear relationship between twocontinuous random variables. This article aims to highlight afew of his fundamental ideas.
Resonance,2023年
V Rajaraman
LicenseType:Others 
A race began around 2010 among many countries to build a supercomputer that would breach the ExaFLOPS (10$^{18}$ floatingpoint operations per second) barrier, a formidable goal. Frontier, a supercomputer designed by a team of engineers from CrayHPE and the Oak Ridge National Laboratory, achieved this goal in May 2022. It executed the HPLinpack benchmark program at a speed of 1.102 ExaFLOPS. In this article, I trace the events leading up to the design of Frontier and its architecture. I also describe various benchmarks used to compare the speeds of highperformance computers.