Organic resources of the sea

Despite the vast number of phyla and species in the sea, the major marine resource will continue to be fish for hum an consumption. At the same time, research on methods of preparing an animal protein concentrate, of high nutritional value and acceptable as human food, has pointed the way for the eventual development of a new technology. Other bulk products of marine life-forms have been suggested as organic resources and include specific fatty acids and prostaglandins as therapeutic agents in human medicine as well as fatty alcohols and invertebrate chitin for industrial purposes. Only a few of the many options are considered here since the product must compete in terms of special properties, cost and availability with those derived from biomass of the land, industrial microbiology and from synthetic products made from fossil hydrocarbons. Many biologically active chemicals have been isolated from marine life-forms, but only a few have been used as systemic drugs and selectively toxic agents (antibiotics) in human medicine. These and other chemicals that accumulate in marine organisms would illustrate that species survival in marine ecosystems have evolved specialized metabolic mechanisms that differ from those of terrestrial life-forms. Progress has been slow but it is with the nature and exploitation of these differences that future marine biological and biochemical research and development should be concerned.

Author(s):  
I. A. Kyazimova ◽  
А. А. Kasumova ◽  
А. А. Nabiev

Production of plant products, including juices around the world increases continuously. In the fruit and vegetable juices contain a significant amount of monosaccharides (glucose and fructose), organic acids, vitamins, phenolic compounds, mineral substances and other biologically active components that determine the nutritional and dietary value. For the prevention of various diseases associated with impaired metabolic processes, we developed a new technology of preparation of food by blending juice of pumpkin, quince and persimmon. Thus prepared organic blended juice contains a substantial amount of free glucose and fructose, different phenolic compounds, a sufficient amount of organic acids, mineral elements, including iodine and other components that determine its nutritional and biological value. In prepared juices were evaluated the quantitative indicators of β-carotene, vitamin C, glucose and fructose, sucrose, starch, pectin substances. Also in the atomic absorbtion spectrometer Analyst 400 (PerkinElmer, USA) was analyzed content of the organic acids and phenolic compounds. Prepared juices were tested in accordance with 10 point scoring scale. It is established that all juices contain a sufficient amount of the minerals. In pumpkin and quince juices not contain iodine while it presents in sufficient amount in persimmon juice that’s why in the blended juice mineral in addition to mineral elements iodine are contained. In pumpkin and persimmon aliphatic acids are contained in small amount. For this reason during the blending process was used quince juice which is rich in aliphatic acids. The blended juice is light straw color, with delicious flavor, a slight astringent property and a balanced taste.


PEDIATRICS ◽  
1957 ◽  
Vol 19 (3) ◽  
pp. 456-461
Author(s):  
Ernest Caulfield

IN VIEW of the tremendous advance in pediatrics during the past half century, one might think that a full century ago no one could have known very much about the care of children. To read the newspapers of that day, one might also conclude that it was an age primarily of quacks and patent medicines—of worm cures, hive syrups and of little liver pills. But to appreciate the true status of American pediatrics in 1855 one must judge it not only by the standards of our time but also by the standards of a century earlier, and when that is done it will be seen that American pediatrics in the mid-Nineteenth Century had also made considerable progress. In 1755 the care of the sick was generally in the hands of well-meaning yet untrained practical nurses whereas in 1855 people were turning to physicians who were usually medical school graduates, well acquainted with a vast number of new and important publications. More and more pediatric articles were appearing in the many American journals; and in the review of a new book, one writer mentioned "the numerous publications on the management of infants and children with which the press has been loaded." Indeed, the press was loaded, for the Philadelphia physician had at his command no less than 8 fairsized textbooks in English devoted exclusively to the care of children. The second quarter of the Nineteenth Century saw a definite trend toward pediatrics as a specialty. There is no need to discuss here the numerous elementary guides which were intended primarily for mothers and which were precursors of the textbooks, or the many systems of general medicine with their chapters on pediatric subjects, especially since this trend may be well illustrated by mentioning only the impressive list of textbooks published in Philadelphia.


2015 ◽  
Vol 6 (1) ◽  
pp. 57-63 ◽  
Author(s):  
K. R. Aalto

Abstract. In the late 19th century, a regional map of Nueva Granada (present-day Colombia, Panama and parts of Venezuela and Ecuador) was published by German botanist and geologist Hermann Karsten (1817–1908). Karsten's work was incorporated by Agustín Codazzi (1793–1859), an Italian who emigrated to Venezuela and Colombia to serve as a government cartographer and geographer, in his popular Atlas geográfico e histórico de la Republica de Colombia (1889). Geologic mapping and most observations provided in this 1889 atlas were taken from Karsten's Géologie de l'ancienne Colombie bolivarienne: Vénézuela, Nouvelle-Grenade et Ecuador (1886), as cited by Manual Paz and/or Felipe Pérez, who edited this edition of the atlas. Karsten defined four epochs in Earth history: Primera – without life – primary crystalline rocks, Segunda – with only marine life – chiefly sedimentary rocks, Tercera – with terrestrial quadrupeds and fresh water life forms life – chiefly sedimentary rocks, and Cuarta – mankind appears, includes diluvial (glacigenic) and post-diluvial terranes. He noted that Colombia is composed of chiefly of Quaternary, Tertiary and Cretaceous plutonic, volcanic and sedimentary rocks, and that Earth's internal heat (calor central) accounted, by escape of inner gases, for volcanism, seismicity and uplift of mountains. Karsten's regional mapping and interpretation thus constitutes the primary source and ultimate pioneering geologic research.


Vehicles ◽  
2021 ◽  
Vol 3 (4) ◽  
pp. 851-871
Author(s):  
Jonathan Wellings ◽  
David Greenwood ◽  
Stuart R. Coles

The electric vehicle market is an increasingly important aspect of the automotive industry. However, as a relatively new technology, several issues remain present within the industry. An analysis is utilised to examine these issues, along with how they affect the industry and how they can be tackled. Several key issues that affect the electric vehicle market, as well as how efforts to address these issues influence the market, are identified. The analysis also includes the examination of ethical issues, with the issues that arise from the production of raw materials for electric vehicles. The analysis and examination of ethical issues display a wide range of problems in the industry. However, it did highlight the efforts being made to lessen the effect of these problems by various groups, such as regulation by EU and US governing bodies on the materials mined. From this analysis, this paper identifies that many of the other factors examined are directly or indirectly influenced by political and economic factors, also examined in this review. This highlights the impact that governing bodies and businesses have on a vast number of issues that are present within the market and how they can resolve the harmful factors examined.


Author(s):  
Darryl Jones

The importance and influence of food in the lives of animals has been studied is great detail in a vast number of species. This chapter outlines the many findings of this critical research that are directly relevant to understanding how the provisioning of food for garden birds may be affecting their lives.


Author(s):  
Harvey S. Wiener

When Alice faces the extraordinary Wonderland notions of saying what you mean and meaning what you say, she confronts language's great potential and disappointment. Words should, but do not always, mean what they say; and we who use them do not always produce what we mean. If only we could point to a direct correspondence between each word and only one exact meaning! Reading would simplify in a flash. Ah, but what we might gain in exactness and dazzling clarity, surely we would lose in flexibility, nuance, suggestiveness, and contextual richness. It's good that words have such a wide range of meanings and uses; as such they enrich our capabilities as earths highest life forms and its most competent communicators. Knowing the possibilities of language, understanding the many qualities of words and how our language depends on them, can enhance your child's attempts to determine meaning from print. In the long climb up the mountain to word mastery, a major feature of language that you can help your youngster understand is that words often mean more than they say. Certainly, words have denotative meanings. That is, words have exact definitions that you could check easily in a dictionary. A jeep is a heavy-duty, four-wheeled vehicle. A communist is someone who believes in a social and political system characterized by common ownership and labor organized for the common good. A frigate is a high-speed, medium-sized war vessel of the 17th, 18th, and 19th centuries. Yet each of these words has connotative meanings as well. What a word connotes is what it suggests or implies beyond its actual meaning—including the associations and feelings aroused by the word. A jeep is more than a motor vehicle with four-wheel drive; its connection with the military and rugged outdoor life suggests certain associations—rough riding, speed, even danger perhaps. Your son or daughter might like to ride to school in a jeep just for the fun of it, but you'd have 'been puzzled (to say nothing of your parents!) if your date for the senior prom honked the jeep horn outside your front door when he arrived to pick you up.


2018 ◽  
Vol 8 (10) ◽  
pp. 1737 ◽  
Author(s):  
Arshed Mohammed ◽  
Sallehuddin Haris ◽  
Mohd Nuawi

Recent developments in ultrasonic material testing have increased the need to evaluate the current status of the different applications of piezoelectric elements (PEs). This research have reviewed state-of-the-art emerging new technology and the role of PEs in tests for a number of mechanical properties, such as creep, fracture toughness, hardness, and impact toughness, among others. In this field, importance is given to the following variables, namely, (a) values of the natural frequency to PEs, (b) type and dimensions of specimens, and (c) purpose of the tests. All these variables are listed in three tables to illustrate the nature of their differences in these kinds of tests. Furthermore, recent achievements in this field are emphasized in addition to the many important studies that highlight the role of PEs.


Author(s):  
Nanxiang Ge ◽  
Li Liu

During the last 10 years and in particularly within the last few years, there has been a data explosion associated with the completion of the human genome project (HGP) (IHGMC and Venter et al., 2001) in 2001 and the many sophisticated genomics technologies. The human genome (and genome from other species) now provides an enormous amount of data waiting to be transformed into useful information and scientific knowledge. The availability of genome sequence data also sparks the development of many new technology platforms. Among the available different technology platforms, microarray is one of the technologies that is becoming more and more mature and has been widely used as a tool for scientific discovery. The major application of microarray is for simultaneously measuring the expression level of thousands of genes in the cell. It has been widely used in drug discovery and starts to impact the drug development process.


2020 ◽  
Vol 16 (3) ◽  
pp. 70-85
Author(s):  
Odai Y. Khasawneh

The lack of technology acceptance in the workplace has haunted companies in the past and it seems that it will continue to do so in the future. One of the many variables that impact employees' acceptance of a new technology is technophobia; which previously has been studied within the narrow context of computers or few other technologies that are now outdated. In a novel approach, the current study examines employees' technophobia and how it impacts their technology acceptance. In addition, the moderating influence of transformational leadership is studied to determine whether that type of leadership would influence employees to overcome their technophobia. The data analysis confirms that technophobia and its subdimensions are still an issue that haunts the workplace. However, having a leader who's identified as a transformational leader can help employees overcome their technophobia. This study argues that it is vital for companies to understand the level and type of technophobia as well as what type of leadership their employees have before implementing any new technologies.


2019 ◽  
Vol 71 (11) ◽  
pp. 3247-3253 ◽  
Author(s):  
Karl J Niklas ◽  
Stuart A Newman

Abstract The multiple origins of multicellularity had far-reaching consequences ranging from the appearance of phenotypically complex life-forms to their effects on Earth’s aquatic and terrestrial ecosystems. Yet, many important questions remain. For example, do all lineages and clades share an ancestral developmental predisposition for multicellularity emerging from genomic and biophysical motifs shared from a last common ancestor, or are the multiple origins of multicellularity truly independent evolutionary events? In this review, we highlight recent developments and pitfalls in understanding the evolution of multicellularity with an emphasis on plants (here defined broadly to include the polyphyletic algae), but also draw upon insights from animals and their holozoan relatives, fungi and amoebozoans. Based on our review, we conclude that the evolution of multicellular organisms requires three phases (origination by disparate cell–cell attachment modalities, followed by integration by lineage-specific physiological mechanisms, and autonomization by natural selection) that have been achieved differently in different lineages.


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