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Zinc Finger Proteins: From Atomic Contact to Cellular Function

The scientists discovered a novel domain associated with zinc, and named this domain "zinc finger. " The number of proteins with similar zinc fingers grew quickly and these proteins are now called C2H2, Cys2His2 or classical zinc finger proteins. To date, about 24,000 C2H2 zinc finger proteins have been recognized. Approximately 700 human genes, or more than 2% of the genome, have been estimated to encode C2H2 finger proteins. From the beginning these proteins were thought to be numerous, but no one could have predicted such a huge number. Perhaps thousands of scientists are now working on C2H2 zinc finger proteins fi-om variou s viewpoints. This field is a good example of how a new science begins with the insight of a few scientists and how it develops by efforts of numerous independent scientists, in contrast to a policy-driven scientific project, such as the Human Genome Project, with goals clearly set at its inception and with work performed by a huge collaboration throughout the world. As more zinc finger proteins were discovered, several subfamilies, such as C2C2, CCHC, CCCH, LIM, RING, TAZ, and FYVE emerged, increasing our understanding of zinc fingers. The knowledge was overwhelming. Moreover, scientists began defining the term "zinc finger" differently and using various names for identical zinc fingers.

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Transparent Conductive Zinc Oxide : Basics and Applications in Thin Film Solar Cells

Zinc oxide (ZnO) belongs to the class of transparent conducting oxides which can be used as transparent electrodes in electronic devices or heated windows. In this book the material properties of, the deposition technologies for, and applications of zinc oxide in thin film solar cells are described in a comprehensive manner. Structural, morphological, optical and electronic properties of ZnO are treated in this review. The editors and authors of this book are specialists in deposition, analysis and fabrication of thin-film solar cells and especially of ZnO. This book is intended as an overview and a data collection for students, engineers and scientist.

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Strategy vs Tragedy in the Crown Era

Tragedy the world is now experiencing its third major epidemic of coronavirus infections. The novel coronavirus SARS-CoV-2, the causative agent of COVID-19, has quickly become a threat to the public health and economy worldwide. As of July 2020, more than 15 million people worldwide have been infected with SARS CoV-2, and COVID-19 has led to more than 600 000 deaths. Strategy currently, there is no specific therapeutic drugs targeting the SARS-CoV-2 and no specific therapeutic agents had demonstrated efficacy in treating patients with COVID-19. Until then, “repurposed” drugs that have been approved for other indications are being used to treat COVID-19 patients. Nevertheless, the efficacy of these treatment regimens remains to be verified by appropriately designed clinical trials.

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Metals in Society and in the Environment : A Critical Review of Current Knowledge on Fluxes, Speciation, Bioavailability and Risk for Adverse Effects of Copper, Chromium, Nickel and Zinc

In 2002, the Swedish Metal Information Task Force (MITF) engaged the Environmental Research Group (MFG) to update previous monographs on copper, zinc and major alloying metals (such as chromium, nickel and molybdenum) in society and in the environment. This book presents new results on metal fluxes from society to the environment, on metal speciation in water, soil and sediment, and its interpretation in terms of mobility, biological uptake and toxicity. The scientific fundamentals of new approaches, like the Acid Volatile Sulphide (AVS) concept to predict metal bioavailability in sediments, and the Biotic Ligand Model (BLM) to calculate the toxicity of metals to aquatic organisms, are critically evaluated, with a focus on copper, nickel, zinc, and, in part, chromium.

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Infrared Ellipsometry on Semiconductor Layer Struc : Phonons, Plasmons, and Polaritons

The study of semiconductor-layer structures using infrared ellipsometry is a rapidly growing field within optical spectroscopy. This book offers basic insights into the concepts of phonons, plasmons and polaritons, and the infrared dielectric function of semiconductors in layered structures. It describes how strain, composition, and the state of the atomic order within complex layer structures of multinary alloys can be determined from an infrared ellipsometry examination. Special emphasis is given to free-charge-carrier properties, and magneto-optical effects. A broad range of experimental examples are described, including multinary alloys of zincblende and wurtzite structure semiconductor materials, and future applications such as organic layer structures and highly correlated electron systems are proposed.

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Epigenome editing : Methods and protocols

This second volume details new and updated methods covering applications of epigenome editing. Chapters guide readers through general and topical reviews, DNA-binding devices, optimization of the effector domains, readout of epigenome marks, and approaches for delivery at the cellular and organismal level. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and key tips on troubleshooting and avoiding known pitfalls.

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Laser additive manufacturing: design, materials, processes and applications

Laser-based additive manufacturing (LAM) is a revolutionary advanced digital manufacturing technology developed in recent decades, which is also a key strategic technology for technological innovation and industrial sustainability. This technology unlocks the design and constraints of traditional manufacturing and meets the needs of complex geometry fabrication and high-performance part fabrication. A deeper understanding of the design, materials, processes, structures, properties and applications is desired to produce novel functional devices, as well as defect-free structurally sound and reliable LAM parts.The topics in this Special Issue reprint include macro- and micro-scale additive manufacturing with lasers, such as structure/material design, fabrication, modeling and simulation, in situ characterization of additive manufacturing processes and ex situ materials characterization and performance, with an overview that covers various applications in aerospace, biomedicine, optics and energy.

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Acne Vulgaris

Acne vulgaris is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages, and the main causes Excess oil (sebum) production, Hair follicles clogged by oil and dead skin cells, Bacteria, Inflammations, life style and the hormonal status for the both gender, also, There are several drugs used to treat and prevent acne such as the most common agents like isotretinoin and benzoyl peroxide , hormonal drugs and newly alternative treatments can be used such as green tea, Zinc supplement, and aloe Vera.

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