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  • 1
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    Genetics of gene expression and its effect on disease (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-03-18
    Description: Common human diseases result from the interplay of many genes and environmental factors. Therefore, a more integrative biology approach is needed to unravel the complexity and causes of such diseases. To elucidate the complexity of common human diseases such as obesity, we have analysed the expression of 23,720 transcripts in large population-based blood and adipose tissue cohorts comprehensively assessed for various phenotypes, including traits related to clinical obesity. In contrast to the blood expression profiles, we observed a marked correlation between gene expression in adipose tissue and obesity-related traits. Genome-wide linkage and association mapping revealed a highly significant genetic component to gene expression traits, including a strong genetic effect of proximal (cis) signals, with 50% of the cis signals overlapping between the two tissues profiled. Here we demonstrate an extensive transcriptional network constructed from the human adipose data that exhibits significant overlap with similar network modules constructed from mouse adipose data. A core network module in humans and mice was identified that is enriched for genes involved in the inflammatory and immune response and has been found to be causally associated to obesity-related traits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Emilsson, Valur -- Thorleifsson, Gudmar -- Zhang, Bin -- Leonardson, Amy S -- Zink, Florian -- Zhu, Jun -- Carlson, Sonia -- Helgason, Agnar -- Walters, G Bragi -- Gunnarsdottir, Steinunn -- Mouy, Magali -- Steinthorsdottir, Valgerdur -- Eiriksdottir, Gudrun H -- Bjornsdottir, Gyda -- Reynisdottir, Inga -- Gudbjartsson, Daniel -- Helgadottir, Anna -- Jonasdottir, Aslaug -- Jonasdottir, Adalbjorg -- Styrkarsdottir, Unnur -- Gretarsdottir, Solveig -- Magnusson, Kristinn P -- Stefansson, Hreinn -- Fossdal, Ragnheidur -- Kristjansson, Kristleifur -- Gislason, Hjortur G -- Stefansson, Tryggvi -- Leifsson, Bjorn G -- Thorsteinsdottir, Unnur -- Lamb, John R -- Gulcher, Jeffrey R -- Reitman, Marc L -- Kong, Augustine -- Schadt, Eric E -- Stefansson, Kari -- England -- Nature. 2008 Mar 27;452(7186):423-8. doi: 10.1038/nature06758. Epub 2008 Mar 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉deCODE genetics, 101 Reykjavik, Iceland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18344981" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue/metabolism ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Animals ; Blood/metabolism ; Body Mass Index ; Cohort Studies ; European Continental Ancestry Group/genetics ; Female ; *Gene Expression Profiling ; Gene Expression Regulation/*genetics ; Genome, Human ; Humans ; Iceland ; Lod Score ; Male ; Mice ; Middle Aged ; Obesity/*genetics ; Polymorphism, Single Nucleotide/genetics ; Quantitative Trait Loci/genetics ; Sample Size ; Waist-Hip Ratio
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    Neurobiological substrates of dread (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-05-06
    Description: Given the choice of waiting for an adverse outcome or getting it over with quickly, many people choose the latter. Theoretical models of decision-making have assumed that this occurs because there is a cost to waiting-i.e., dread. Using functional magnetic resonance imaging, we measured the neural responses to waiting for a cutaneous electric shock. Some individuals dreaded the outcome so much that, when given a choice, they preferred to receive more voltage rather than wait. Even when no decision was required, these extreme dreaders were distinguishable from those who dreaded mildly by the rate of increase of neural activity in the posterior elements of the cortical pain matrix. This suggests that dread derives, in part, from the attention devoted to the expected physical response and not simply from fear or anxiety. Although these differences were observed during a passive waiting procedure, they correlated with individual behavior in a subsequent choice paradigm, providing evidence for a neurobiological link between the experienced disutility of dread and subsequent decisions about unpleasant outcomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1820741/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1820741/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berns, Gregory S -- Chappelow, Jonathan -- Cekic, Milos -- Zink, Caroline F -- Pagnoni, Giuseppe -- Martin-Skurski, Megan E -- DA00367/DA/NIDA NIH HHS/ -- DA016434/DA/NIDA NIH HHS/ -- K08 DA000367/DA/NIDA NIH HHS/ -- R01 DA016434/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2006 May 5;312(5774):754-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 101 Woodruff Circle, Suite 4000, Atlanta, GA 30322, USA. gberns@emory.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16675703" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; *Anxiety ; Brain Mapping ; Cerebral Cortex/*physiology ; Cues ; *Decision Making ; Electroshock ; *Emotions ; *Fear ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Models, Psychological ; Pain/physiopathology ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 3
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    Impact of meat and Lower Palaeolithic food processing techniques on chewing in humans (2016)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2016-03-10
    Description: The origins of the genus Homo are murky, but by H. erectus, bigger brains and bodies had evolved that, along with larger foraging ranges, would have increased the daily energetic requirements of hominins. Yet H. erectus differs from earlier hominins in having relatively smaller teeth, reduced chewing muscles, weaker maximum bite force capabilities, and a relatively smaller gut. This paradoxical combination of increased energy demands along with decreased masticatory and digestive capacities is hypothesized to have been made possible by adding meat to the diet, by mechanically processing food using stone tools, or by cooking. Cooking, however, was apparently uncommon until 500,000 years ago, and the effects of carnivory and Palaeolithic processing techniques on mastication are unknown. Here we report experiments that tested how Lower Palaeolithic processing technologies affect chewing force production and efficacy in humans consuming meat and underground storage organs (USOs). We find that if meat comprised one-third of the diet, the number of chewing cycles per year would have declined by nearly 2 million (a 13% reduction) and total masticatory force required would have declined by 15%. Furthermore, by simply slicing meat and pounding USOs, hominins would have improved their ability to chew meat into smaller particles by 41%, reduced the number of chews per year by another 5%, and decreased masticatory force requirements by an additional 12%. Although cooking has important benefits, it appears that selection for smaller masticatory features in Homo would have been initially made possible by the combination of using stone tools and eating meat.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zink, Katherine D -- Lieberman, Daniel E -- England -- Nature. 2016 Mar 24;531(7595):500-3. doi: 10.1038/nature16990. Epub 2016 Mar 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, Massachusetts 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26958832" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Animals ; Bite Force ; Carnivory ; Diet/*history ; Female ; Food Handling/*history ; Goats ; History, Ancient ; Hominidae ; Humans ; Male ; Mastication/*physiology ; Meat/*history ; Particle Size ; Plants ; Tool Use Behavior ; Tooth/physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 4
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    NO2 heterodyne frequency measurements with a tunable diode laser, a CO laser transfer oscillator and CO2 laser standards (1987)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Heterodyne frequency measurements have been made on selected groups of nitrogen dioxide rovibronic transitions between 1580.8 and 1650.7/cm. The groups are separated by 7 to 10/cm, and the intent is to provide a limited (and interim) calibration table for the region. In addition to a table of measured frequencies in the region, figures of spectra in the vicinity of the measured lines are included to provide a map for identifying the transitions measured.
    Keywords: LASERS AND MASERS
    Type: NASA-CR-182393 , NAS 1.26:182393 , PB88-110051 , NBS/TN-1308
    Format: application/pdf
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  • 5
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    Far infrared laser frequencies of CH3OD and N2H4 (1991)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The frequencies of 26 laser lines with wavelengths between 57 and 534 microns are measured in the optically pumped laser gases CH3OD and N2H4. A pair of 12CO2 lasers are employed as a frequency standard for the heterodyne frequency measurements. As the measurements are oriented toward spectroscopic applications of FIR lasers where dense, broad, frequency coverage is essential, every strong pump absorption of the two molecules for new lines that might be made to lase by varying the laser gas pressure and the tuning of the pump laser are investigated.
    Keywords: LASERS AND MASERS
    Type: International Journal of Infrared and Millimeter Waves (ISSN 0195-9271); 12; 1161-116
    Format: text
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  • 6
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    Accurate frequency of the 119 micron methanol laser from tunable far-infrared absorption spectroscopy (1990)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: High-accuracy absorption spectroscopy of CH3OH in the far infrared is discussed. In addition to 22 transitions in the ground state, the frequency of the (n, tau, J, K), (0, 1, 16, 8) to (0, 2, 15, 7) transition in the nu5 excited vibrational level, which is responsible for the laser emission at 119 microns, was measured. The measured frequency is 2,522,782.57(10) MHz at zero pressure, with a pressure shift of 6.1(32) kHz/Pa (0.805/420/ MHz/torr). An accurate remeasurement of the laser emission frequency has also been performed, and the results are in good agreement.
    Keywords: LASERS AND MASERS
    Type: IEEE Journal of Quantum Electronics (ISSN 0018-9197); 26; 575-579
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  • 7
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    Sub-Doppler tunable far-infrared spectroscopy (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The first experimental observations of sub-Doppler linewidths in a cell made using tunable far-infrared radiation are reported. A double-resonance scheme has been used, combining CO2-laser infrared radiation with tunable far-infrared radiation to observe a sub-Doppler line shape in an excited vibrational state of CH3OH.
    Keywords: LASERS AND MASERS
    Type: Optics Letters (ISSN 0146-9592); 12; 867-869
    Format: text
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