Phyletic Size Increase, An Important Trend Illustrated by Fossil Invertebrates

Evolution ◽  
1949 ◽  
Vol 3 (2) ◽  
pp. 103 ◽  
Author(s):  
Norman D. Newell
Author(s):  
Jean Fincher

An important trend in the food industry today is reduction in the amount of fat in manufactured foods. Often fat reduction is accomplished by replacing part of the natural fat with carbohydrates which serve to bind water and increase viscosity. It is in understanding the roles of these two major components of food, fats and carbohydrates, that freeze-fracture is so important. It is well known that conventional fixation procedures are inadequate for many food products, in particular, foods with carbohydrates as a predominant structural feature. For some food science applications the advantages of freeze-fracture preparation procedures include not only the avoidance of chemical fixatives, but also the opportunity to control the temperature of the sample just prior to rapid freezing.In conventional foods freeze-fracture has been used most successfully in analysis of milk and milk products. Milk gels depend on interactions between lipid droplets and proteins. Whipped emulsions, either whipped cream or ice cream, involve complex interactions between lipid, protein, air cell surfaces, and added emulsifiers.


2014 ◽  
Vol 13 (7) ◽  
pp. 4625-4632
Author(s):  
Jyh-Shyan Lin ◽  
Kuo-Hsiung Liao ◽  
Chao-Hsing Hsu

Cloud computing and cloud data storage have become important applications on the Internet. An important trend in cloud computing and cloud data storage is group collaboration since it is a great inducement for an entity to use a cloud service, especially for an international enterprise. In this paper we propose a cloud data storage scheme with some protocols to support group collaboration. A group of users can operate on a set of data collaboratively with dynamic data update supported. Every member of the group can access, update and verify the data independently. The verification can also be authorized to a third-party auditor for convenience.


Author(s):  
Gordon C.C. Douglas

When cash-strapped local governments don’t provide adequate services, and planning policies prioritize economic development over community needs, what is a concerned citizen to do? In the help-yourself city, you do it yourself. The Help-Yourself City presents the results of nearly five years of in-depth research on people who take urban planning into their own hands with unauthorized yet functional and civic-minded “do-it-yourself urban design” projects. Examples include homemade traffic signs and public benches, guerrilla gardens and bike lanes, even citizen development “proposals,” all created in public space without permission but in forms analogous to official streetscape design elements. With research across 17 cities and more than 100 interviews with do-it-yourselfers, professional planners, and community members, the book explores who is creating these unauthorized improvements, where, and why. In doing so, it demonstrates the way uneven development processes are experienced and responded to in everyday life. Yet the democratic potential of this increasingly celebrated trend is brought into question by the privileged characteristics of typical do-it-yourself urban designers, the aesthetics and cultural values of the projects they create, and the relationship between DIY efforts and mainstream planning and economic development. Despite its many positive impacts, DIY urban design is a worryingly undemocratic practice, revealing the stubborn persistence of inequality in participatory citizenship and the design of public space. The book thus presents a needed critical analysis of an important trend, connecting it to research on informality, legitimacy, privilege, and urban political economy.


Author(s):  
Andrew Kahn ◽  
Mark Lipovetsky ◽  
Irina Reyfman ◽  
Stephanie Sandler

The chapter considers how, beginning with the Revolution and continuing across the centry, new narrative forms in prose and poetry fashion a discourse of national destiny. As narratives conceptualize historical change and convey the meanings of catastrophe, they develop new plotlines, metaphoric systems and mythological visions. The chapter argues that Russian literature on the Great Terror, collectivization, and Gulag achieves a focus on historical and personal trauma comparable to Holocaust literature. Soviet narratives of World War II also form an important trend from the 1940s through twenty-first century, serving simultaneously as the source of social criticism and the sustained attempt to redefine national identity.


2003 ◽  
Vol 36 (3) ◽  
pp. 165-189 ◽  
Author(s):  
Richard Johnstone

The present review refers to studies published in 2002 in leading research journals. It focuses in particular on learning, teaching and policy in respect of second, modern foreign or additional languages. The comments offered about particular studies are not intended to summarise them (for that, it is best to refer to the actual abstracts which the present journal publishes). What is on offer is a personal selection made because some aspect of a particular article seemed to be of particular interest or to reflect an important trend, and I have attempted to link such elements together to form a narrative. Compared with previous years, two important themes seemed to gather particular momentum in 2002: first, the role of ‘frequency’ in acquisition; and second, the impact of complex and contradictory global factors on everyday pedagogical practice, thinking and attitudes. As in previous years reference is made to the abstracts. Thus, Tarone (2002: 03-158) refers to an article by Tarone published in 2002 and reflected in the 2003 series of this journal as abstract 158. In previous years I have discussed ICT (information and communications technology) in a separate section of its own but this has now been integrated into other sections, reflecting a process of ‘normalisation’.


1986 ◽  
Vol 7 (2) ◽  
pp. 74-77 ◽  
Author(s):  
William M. Valenti

Since the introduction of hepatitis B immune globulin (HBIg) and more recently, the hepatitis B vaccine, programs for hepatitis B prevention have become a major part of most employee health/infection control programs. In fact, hepatitis B prevention activities have probably been responsible for increased collaboration between the two programs. Hepatitis B prevention is a very fluid process and is constantly changing as we develop a greater understanding of the creative uses of both HBIg and the vaccine. On e important trend that has emerged from the introduction and widespread use of HBIg and vaccine has been a greater emphasis on pre-exposure prevention of hepatitis B infection. In the past, programs for hepatitis B prevention consisted of periodic hepatitis B screening in dialysis units and some laboratories. Unfortunately, screening only monitors introduction of infection and does very little to prevent hepatitis B virus (HBV) infection.


Author(s):  
Alexey A. Gryakalov ◽  

The article presents reflections on the book Roman Osipovich Yakobson [Avtonomova, Baran, Shchedrina (eds.) 2017], published in the series Philoso­phy of Russia of the First Half of the 20th Century, which contains critical ana­lytical works on the theoretical heritage of the outstanding linguist and humani­ties of 20th century. The problems of the articles are considered in the current contexts of the humanities and in the prospects of contemporary philosophical discussions. Particular attention is paid to such topics as poetic, language, struc­ture, local development, structuralism, creativity, subjectivity. The creative pres­ence of Jacobson’s ideas in the humanitarian knowledge of the 20th–21th cen­turies shown in the interaction of scientific ideas and in the dialogues of scientific and national and cultural traditions. This confirms the universal re­sponsiveness of the ideas of an outstanding scientist, which most of all testifies to the demand for his views in the interdisciplinary space of philosophical and humanitarian reflection: the holistic coverage of the material and the desire for theoretical integrity from the very beginning were in the center of attention of Ja­cobson. The publication of the collection carefully studied the basic constants of the theoretical heritage of Jacobson – shows interdisciplinarity in action. The methodological gesture inherent in Jacobson’s research outlines and sub­stantiates the most important trend in the formation and transformation of knowledge of the 20th and 21st centuries – the growing importance of concep­tual interactions and topological aspirations of thought. These qualities of reflec­tion contain a path to the existential, anthropological, aesthetic and ethical as­pects of life: freedom of co-creation and freedom of existence can only be determined against the background of symbolic determinations – the human lan­guage, first of all.


Author(s):  
Anita Indira Anand

This is a book about the ways in which capital markets have come to be shaped by the ubiquity of sophisticated investors. In particular, many of today’s investors have the economic might and technical capacity to play a role in the decision-making of the corporations in which they invest. This phenomenon brings with it a host of benefits, such as mechanisms to ameliorate the moral hazard that can exist when the people who bear the risk of corporate activity are different from those who make decisions. A key element of this book is an examination of the ways in which thinking about corporations and capital markets must change to reflect the prevalence of sophisticated shareholders. The book develops a concept—shareholder-driven corporate governance—to explain the role of powerful shareholders and to propose a regulatory scheme that furthers their participation in corporate decision-making. In doing so, the book considers a number of regulatory challenges that confront securities regulators. Ultimately, the book identifies an important trend in capital markets, highlights reasons for fostering this trend, and discusses the path that regulation can and should take in order to protect investors and foster well-regulated markets.


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