Kenneth R. Lewis – författare

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7 produkter

Flight of the Bowyer
A Novel
AvKenneth R. Lewis
Ljudbok
Engelska, 2013
321 kr
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After six long years of political genocide carried out against the American people by the administration of President Benjamin Franklin Luder, the nation is stunned when Luder announces that he is issuing an executive order to suspend the next presidential election for "the good of the country," giving him an unprecedented, and unconstitutional, third term as president. Luder has slowly and systematically robbed the citizens of various liberties and freedoms through similar acts, and in the process he has nearly destroyed the once-greatest country on earth. However, his environmental policy of "green communism" has done the most damage of all, resulting in a nationwide energy slowdown which has crippled every level of industry. It now costs the average American eleven dollars for every gallon of gasoline they put in their tanks, and in winter the elderly freeze like cordwood in their unheated homes because they cannot afford heating oil.
Like any clever Svengali, Luder does not suffer from a lack of visionary delusions. Idaho''s unspoiled Sawtooth Mountain Range is rich in thorium, a much safer and cleaner alternative to the uranium currently used in the few nuclear power plants in the country that still exist. It is said that one thorium mine, located near the small mining town of Ransom, Idaho, contains enough energy to power every city in the United States for the next five hundred years. However, the mine is on private property and surrounded by federal lands.
Sean Brennan, a special agent with the newly formed United States Secret Police, sends Assistant US Attorney Haley Hendricks to Ransom, posing as an ecojournalist. Haley is assigned to find a way for the government to seize the thorium mine in the name of "national security," and Brennan''s orders are to design a plan to get the president to the mine for a photo op and then safely back to the White House. Sean and Haley were once engaged, but after Haley was diagnosed with breast cancer, Sean broke things off. Since then Haley has dreamed of escaping, forever, the sewer called Washington, DC.
On her first afternoon in Ransom, Haley locates Jace Fuller, the man she has been directed to hire as a guide to the mine. From the first moment she lays eyes on him, Jace takes her breath away. But Haley soon learns that Jace''s wife, Annie, has been dead for several years now and that his eleven-year-old son, Josh, is for some reason being raised by his grandparents instead of Jace.
As Jace unwittingly prepares to lead the most powerful man in the world deep into the rugged Sawtooth Wilderness of Idaho, an unseen and sinister trap begins to unfold. Soon Jace will be forced to choose between saving his country and saving the life of his son, choosing who will live and who must die—including himself.
Meiotic System
AvBernard John,Kenneth R. Lewis
Häftad, Engelska, 1965
569 kr
Skickas inom 10-15 vardagar
Introduction When the study of heredity and variation first came to be treated as a scientific subject-and this, one must remember, was only just over a hundred years ago-there was an unfortunate separation between the disciplines of cytology and experimental breeding. This separation was based partly on a lack of understanding and partly on a lack of the desire to understand. Even WILLIAM BATESON, the first apostle of mendelism in England, had a blind spot for cytology and for many years dogmatically refused to believe that MENDEL'S determinants were transmitted and distributed by the chromosomes. This separation between cytology and experimental breeding is one which persists, in a measure, even today, simply because there are two quite different, though complementary, techniques available for the study of heredity and variation. On the one hand, one can study directly the structure and behaviour of the actual vehicles which transmit the genetic determinants from one generation to the next. This is the method employed by those who study genetics through a microscope. The alternative method is that used by the experimental breeder who, in default of being able to watch the hereditary factors segregate from each other directly, is obliged to examine the constitution of the germ cells indirectly by sampling, and usually at random, the products of a controlled mating.
Chromosome Complement
AvBernard John,Kenneth R. Lewis
Häftad, Engelska, 1968
569 kr
Skickas inom 10-15 vardagar
material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence determines the specificity of proteins. And enzyme proteins are immediately responsible for the peripheral metabolism which enables the organism to impose its own kind of order on the raw materials it absorbs. The course of development is determined not only by the nature of the genetic material but by its over-all amount and the relative frequency of the different functional units. Differential rates of epigenetic activity matter also. In theory, therefore, differential development within or even between individuals could be determined by the differential replication of the various genetic elements or by their differential activity. And further variation could arise by the differential transmission of these elements between cells. Indeed it would appear that all these possibilities are exploited by living systems. If like is to beget like, however, any genetic change which occurs during development must be undone, or else germinal units preserved from change must be set aside. As far as is known, genetic changes, even those involving only quantity or relative amounts, are reversible to only a very limited extent so that a change once done cannot be undone. Consequently genetic changes during the development of presumptive germ-lines are either non existant or minor and confined to a small class of un aggregated deter minants.
Chromosome Cycle
Kern- und Zellteilung B the Chromosome Cycle
AvKenneth R. Lewis,Bernard John
E-bok
PDF, Engelska, 2012
732 kr
Läs direkt efter köp
neoessity for making it. Yet, clearly, the problem of development is largely one of filling "the vacuum between determinant and character" (DARLINGTON 1951). Nowadays the chromosome theory can be presented in much greater detail and with utter confidence, but its two main features remain the same. However, while the role of the chromosomes in heredity and development has been appreciated for a long time, the manner in which they perform their genetic and epigenetic functions has become amenable to critical investigation only in recent years. There is, therefore, still an unmistakable tendency to think of chromosomes in terms of the discrete threads of cell division and, in keeping with this conception, the chromosome cycle is gen erally considered in relation to the microscopically visible changes in morphology which occur during the mechanically active phases of mitosis and meiosis. Chromosome phenotype, however, changes not only during division but throughout the cell cycle. The changes which occur during interphase are, of course, scarcely revealed in morphological modifications of the restless "resting" nucleus. Consequently they are less obvious and correspondingly less amenable to investigation. This accounts for the concentration on the countable karyotype, with its visible properties of pairing and pycnosity, and the measurable movements of separation and segregation.
Chromosome Cycle
Kern- und Zellteilung B the Chromosome Cycle
AvBernard John,Kenneth R. Lewis
Häftad, Engelska, 2012
566 kr
Skickas inom 10-15 vardagar
neoessity for making it. Yet, clearly, the problem of development is largely one of filling "the vacuum between determinant and character" (DARLINGTON 1951). Nowadays the chromosome theory can be presented in much greater detail and with utter confidence, but its two main features remain the same. However, while the role of the chromosomes in heredity and development has been appreciated for a long time, the manner in which they perform their genetic and epigenetic functions has become amenable to critical investigation only in recent years. There is, therefore, still an unmistakable tendency to think of chromosomes in terms of the discrete threads of cell division and, in keeping with this conception, the chromosome cycle is gen erally considered in relation to the microscopically visible changes in morphology which occur during the mechanically active phases of mitosis and meiosis. Chromosome phenotype, however, changes not only during division but throughout the cell cycle. The changes which occur during interphase are, of course, scarcely revealed in morphological modifications of the restless "resting" nucleus. Consequently they are less obvious and correspondingly less amenable to investigation. This accounts for the concentration on the countable karyotype, with its visible properties of pairing and pycnosity, and the measurable movements of separation and segregation.
Meiotic System
AvKenneth R. Lewis,Bernard John
E-bok
PDF, Engelska, 2012
739 kr
Läs direkt efter köp
Introduction When the study of heredity and variation first came to be treated as a scientific subject-and this, one must remember, was only just over a hundred years ago-there was an unfortunate separation between the disciplines of cytology and experimental breeding. This separation was based partly on a lack of understanding and partly on a lack of the desire to understand. Even WILLIAM BATESON, the first apostle of mendelism in England, had a blind spot for cytology and for many years dogmatically refused to believe that MENDEL''S determinants were transmitted and distributed by the chromosomes. This separation between cytology and experimental breeding is one which persists, in a measure, even today, simply because there are two quite different, though complementary, techniques available for the study of heredity and variation. On the one hand, one can study directly the structure and behaviour of the actual vehicles which transmit the genetic determinants from one generation to the next. This is the method employed by those who study genetics through a microscope. The alternative method is that used by the experimental breeder who, in default of being able to watch the hereditary factors segregate from each other directly, is obliged to examine the constitution of the germ cells indirectly by sampling, and usually at random, the products of a controlled mating.
Chromosome Complement
AvKenneth R. Lewis,Bernard John
E-bok
PDF, Engelska, 2012
739 kr
Läs direkt efter köp
material can serve both autocatalytic and heterocatalytic functions. Thus not only is it unique in itB capacity for self-replication but its base sequence determines the specificity of proteins. And enzyme proteins are immediately responsible for the peripheral metabolism which enables the organism to impose its own kind of order on the raw materials it absorbs. The course of development is determined not only by the nature of the genetic material but by its over-all amount and the relative frequency of the different functional units. Differential rates of epigenetic activity matter also. In theory, therefore, differential development within or even between individuals could be determined by the differential replication of the various genetic elements or by their differential activity. And further variation could arise by the differential transmission of these elements between cells. Indeed it would appear that all these possibilities are exploited by living systems. If like is to beget like, however, any genetic change which occurs during development must be undone, or else germinal units preserved from change must be set aside. As far as is known, genetic changes, even those involving only quantity or relative amounts, are reversible to only a very limited extent so that a change once done cannot be undone. Consequently genetic changes during the development of presumptive germ-lines are either non existant or minor and confined to a small class of un aggregated deter minants.

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Kenneth R. Lewis – författare

Flight of the Bowyer

Meiotic System

Chromosome Complement

Chromosome Cycle

Chromosome Cycle

Meiotic System

Chromosome Complement

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