the chemical basis of life
krafft carl - spiral molecular structure the basis of life
... The ChemicPvl Basis of Life That the fundamental life processes must either wholly or partly, to specific chemical structures is generally conceded, "but there is a prevailing opinion that the ... charges The nitrogen atoms at the ends of the spiral will probably unite with the ions of inorganic salts, the presence of which is necessary for the nourishment of all living organisms It will ... Inheritance of structural variations; The rod-like or thread-like form of many of the lov^rer organisms; The optical activity of substances obtained from living tissues; The large porcentage of wat...
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GENOMIC DISORDERS The Genomic Basis of Disease doc
... or required further explanation of the need for their samples I often thought of the irony of the situation At these reunion parties, Dr Garcia would oversee the administration of the electrical ... (3) elucidation of the chemical basis of heredity, the molecular basis of disease has been addressed in the context of how mutations affect the structure, function, or regulation of a gene or its ... with the arrowheads representing the short, direct repeats formed at the point of insertion The left half of Alu contains the A and B boxes of the RNA polymerase III promoter The two halves of the...
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Báo cáo khoa học: Origins of DNA replication in the three domains of life pdf
... itself both at the level of the immediate chromatin environment of the intergenic region, and also at the level of topological status of the DNA as a result of transcription of the adjacent genes ... DnaC [14] Rather the role of ATP in the reaction is to serve as a switch that controls the activity of the helicase The ATP bound form of DnaC severely inhibits the helicase activity of DnaB and ... by unwinding of this intrinsically less stable region of duplex [6] A further level of complexity arises from the fact that DnaA is a member of the AAA+ family of ATPases This class of protein...
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Báo cáo Y học: The expression of glutathione reductase in the male reproductive system of rats supports the enzymatic basis of glutathione function in spermatogenesis doc
... attributed to the proliferation of spermatogenic cells around the pubertal stage, and the reduction in the population of Sertoli cells relative to the spermatogenic cells Even though the GR content ... during their migration through the epididymis, the oxidation of sulfhydryls is related to the acquisition of motility [4,5] During epididymial migration, sulfhydryls in the nucleus and the tail of ... protein and the mRNA for GR (Fig 1C), which appears to be due to different turnover rates of the protein in these tissues Immunohistochemical localization of GR in male reproductive system of the adult...
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THE CHEMICAL HISTORY OF A CANDLE A COURSE OF LECTURES DELIVERED BEFORE A JUVENILE AUDIENCE AT THE ROYAL INSTITUTION ppt
... tongues of flame that I refer to You have the air creeping in over the edge of the dish forming these tongues Why? Because, through the force of the current and the irregularity of the action of the ... In the middle of the flame, where the wick is, there is this combustible vapour; on the outside of the flame is the air which we shall find necessary for the burning of the candle; between the ... have one of the most beautiful illustrations of the general nature of a candle that I can possibly give The fuel provided, the means of bringing that fuel to the place of chemical action, the regular...
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The Biological Basis of Nursing: Clinical Observations ppt
... thought of as being in the domain of the doctor These nurses need to be taught skills during the first weeks of training which are themselves based on sound knowledge One of the skills they need ... existence of the individual The blood has the task of transporting: water and nutrients from the digestive system to the cells; oxygen from the lungs to the cells; carbon dioxide from the cells to the ... valve on the left and pulmonary valve on the right The aorta is the main artery taking blood from the left side of the heart for distribution around the body 31 THE BIOLOGICAL BASIS OF NURSING:...
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Báo cáo khoa học: The structural basis of calpain behavior pptx
... The structural basis of calpain behavior Y Benyamin two parts, DIIa and DIIb, come closer together, with concomitant release of constraints between the domains (large arrows) ... questions are raised by these molecular studies What is the correlation between the in vitro and in vivo Ca2+ requirements for calpain activity? How the two isoforms target their specific substrates ... and oscillations of [Ca2+], in particular those involving specific phosphorylations of calpastatin, calpains and targets The following Minireviews develop three themes on the role of calpain and...
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Báo cáo khoa học: "The Linguistic Basis of a Mechanical Thesaurus " doc
... it arises in the same way with the lexis The first stage is likewise one of translation equivalence, the second stage is the use of the determining features of the target language The question ... equivalences The autonomy thus acquired by the lexis of the target language allows the thesaurus stage of the dictionary to be the same for one target language whatever the source language, and at the ... language, and the particular determining features of the latter The less use made of comparative systematization, the more use must be made of the particular systematization of the target language...
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Báo cáo khoa học: The molecular basis of heme oxygenase deficiency in the pcd1 mutant of pea pot
... characterized the contribution of these assay components by omitting them individually In the absence of ferredoxin the reaction rate decreased to 46.5% of the complete reaction while the absence of ascorbate ... account for the failure of the PsHO1 probe to detect any HO2-like sequences in Southern blot experiments Whatever the basis of the recovery of phytochrome responses in older pcd1 plants, they still ... region of Arabidopsis thaliana HO1 (AtHO1) and was used as the basis for the design of gene specific primers The 5¢- and 3¢-ends of the pea HO1 cDNA were obtained by rapid amplification of cDNA...
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the tragic sense of life-ernst haeckel and the struggle over evolutionary thought
... Professor of the History of Science and Medicine at the University of Chicago Among his publications are Darwin and the Emergence of Evolutionary Theories of Mind and Behavior, The Meaning of ... had the patience to read through the entire manuscript The deep knowledge of these scholars ranged from the history of science to contemporary biology, from the logic of argument to the logic of ... however, the aspirations of the liberals crashed upon the failure of the Frankfurt Parliament Periodically through the 1830s and 1840s, students in the new Burschenschaften (the fi rst of these...
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integrated buildings - the systems basis of architecture
... in the common sense of the word Chance and confusion play no role in the weather, in the irregular pattern of the earth’s orbit, in the growth pattern of a tree, or in the population limits of ... to further the systems basis of architecture: function as the foundation of design and industrial standardization as the basis of construction The Bauhaus sought to close the gap between the progress ... coincidence that placed these presentations back to back: the last of the structural eras and the first of the environmental ones The changing of the guard officially occurred in the early 1970s and...
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krafft carl - the chemical organization of living matter
... between the the spiral and the —CO— groups at the end of —NH— groups of the newly formed The two hydrogen atoms of the newly formed diketopiperazine ring- diketopiperazine ring imide groups of the ... parts 15 of the molecular structure of every enzyme and determine the specificity thereof Side-chains of one sort or another are probably attached to all sides of the protein portion of the enzyme ... carbon atoms at the free end of the spiral After assimilation of each new diketopiperazine ring, the configuration of atoms at the end of the spiral will be the same as it was before, the will spiral...
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a means to an end the biological basis of aging and death apr 1999
... length of human life, according to the Greeks, was in the hands of the Fates, or Moerae These three sisters, daughters of the Goddess of the Night, measured out the beginning, the middle, and the ... percent of what it was at the end of the nineteenth century These factors still compromise the survival of women in some parts of the world T h e reason for the longer average lifespan of women ... isolation of many elderly people T h e overall loss of the ability to control the image of ourselves seen by others may be one of the most devastating changes of growing old, ranking with the fear of...
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báo cáo hóa học: " Measuring health-related quality of life in Hungarian children with heart disease: psychometric properties of the Hungarian version of the Pediatric Quality of Life Inventory™ 4.0 Generic Core Scales and the Cardiac Module" pptx
... years It was the mother who answered the questionnaire in 92.52% of the sample, and it was the father in 7.48% of the sample No parent in the patient group refused to participate in the study, ... questionnaire in 89.5% of the sample, it was the father in 4.57% of the sample, and it was someone else in 6.28% of the sample Distribution of all participants in terms of gender and age group ... Score, the mean is computed as the sum of the items divided by the number of items answered in the Emotional, Social, and School Functioning Subscales The sequential validation procedure of the...
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báo cáo hóa học: " Development of the Knee Quality of Life (KQoL-26) 26-item questionnaire: data quality, reliability, validity and responsiveness" pptx
... of the time Some of the time All of the time Knee pain present at night: None of the time Some of the time All of the time Knee pain worse on movement: None of the time Some of the time All of ... practice The lack of standardisation in the choice of instruments limits the generalisability of results Furthermore, of the five instruments included in the review that were based on the views of ... ensured that the views of patients with knee problems formed the basis of item construction Therefore the KQoL-26 has high content validity as a measure of knee-related quality of life The instrument...
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báo cáo hóa học: " Evaluating the reliability, validity and minimally important difference of the Taiwanese version of the diabetes quality of life (DQOL) measurement" potx
... scores of the DQOL were moderately correlated with the D-39S (except sexual functioning) and the RAND-12 Magnitudes in the correlations of all DQOL domains with the physical relevant domains of the ... among domains of the DQOL with the D-39S and the RAND-12 As described in the Introduction, because the DQOL essentially measures satisfaction and impact of diabetes treatment, whereas the D-39S measures ... discriminant validity of the DQOL against the D-39S and the RAND-12 In general, domain scores of the DQOL were moderately correlated with the D-39S (except sexual functioning) and the RAND-12 PHC and...
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báo cáo hóa học: " Health-related quality of life for pediatric emergency department febrile illnesses: an Evaluation of the Pediatric Quality of Life Inventory™ 4.0 generic core scales" docx
... the ED and at the time of follow-up (FU) Another consideration is validity: the strength of the association between the candidate instrument and other relevant outcomes (construct validity) The ... correlated with the PedsQL™ total scores at FU, with the exception of caregiver missed work or school (Table 1) The negative direction of the correlation reflects that the longer the duration of fever ... analyzed by means of a paired t-test The effect size was then calculated by dividing the overall mean change in score by the standard deviation of the score at baseline As a point of reference, an...
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báo cáo hóa học: " Measurement properties of the Brazilian version of the Pediatric Quality of Life Inventory (PedsQL™) cancer module scale" pdf
... Finally, there was no report by the patients or guardians of any lack of comprehension regarding the questions The lack of validation studies on assessment scales of the quality of life among ... individuals off treatment Therefore, the occurrence of illness implied limitations and difficulties The analysis of the Corrected Item-Total Correlation proved the satisfactory homogeneity of the instrument ... treatment on the quality of life of patients Moreover, decisions for the implementation of improvements in public healthcare may be adopted based on the impact of interventions on quality of life [1]...
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Báo cáo hóa học: "The Pediatric Quality of Life Inventory™ (PedsQL™) family impact module: reliability and validity of the Brazilian version" pdf
... cross-cultural adaptation, the group of specialists stated that the concept of the impact of childhood cancer on the quality of life of the families used for development of the original instrument was ... Page of (page number not for citation purposes) Health and Quality of Life Outcomes 2008, 6:35 the health-related quality of life of parents/guardians The score is computed as the sum of the 20 ... illness, the assessment of the heath-related quality of life of parents and families could contribute toward their healthcare needs [3,21,22] This study presents the reliability and validity of the...
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