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  • Lunar and Planetary Science and Exploration  (366)
  • Male  (84)
  • 2000-2004  (450)
  • 1980-1984
  • 2004  (232)
  • 2000  (218)
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  • 2000-2004  (450)
  • 1980-1984
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  • 1
    Publication Date: 2004-04-24
    Description: The mechanisms controlling axon guidance are of fundamental importance in understanding brain development. Growing corticospinal and somatosensory axons cross the midline in the medulla to reach their targets and thus form the basis of contralateral motor control and sensory input. The motor and sensory projections appeared uncrossed in patients with horizontal gaze palsy with progressive scoliosis (HGPPS). In patients affected with HGPPS, we identified mutations in the ROBO3 gene, which shares homology with roundabout genes important in axon guidance in developing Drosophila, zebrafish, and mouse. Like its murine homolog Rig1/Robo3, but unlike other Robo proteins, ROBO3 is required for hindbrain axon midline crossing.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1618874/" 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/PMC1618874/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jen, Joanna C -- Chan, Wai-Man -- Bosley, Thomas M -- Wan, Jijun -- Carr, Janai R -- Rub, Udo -- Shattuck, David -- Salamon, Georges -- Kudo, Lili C -- Ou, Jing -- Lin, Doris D M -- Salih, Mustafa A M -- Kansu, Tulay -- Al Dhalaan, Hesham -- Al Zayed, Zayed -- MacDonald, David B -- Stigsby, Bent -- Plaitakis, Andreas -- Dretakis, Emmanuel K -- Gottlob, Irene -- Pieh, Christina -- Traboulsi, Elias I -- Wang, Qing -- Wang, Lejin -- Andrews, Caroline -- Yamada, Koki -- Demer, Joseph L -- Karim, Shaheen -- Alger, Jeffry R -- Geschwind, Daniel H -- Deller, Thomas -- Sicotte, Nancy L -- Nelson, Stanley F -- Baloh, Robert W -- Engle, Elizabeth C -- DC00162/DC/NIDCD NIH HHS/ -- DC05524/DC/NIDCD NIH HHS/ -- EY12498/EY/NEI NIH HHS/ -- EY13583/EY/NEI NIH HHS/ -- EY15298/EY/NEI NIH HHS/ -- EY15311/EY/NEI NIH HHS/ -- MH60233/MH/NIMH NIH HHS/ -- P30 HD 18655/HD/NICHD NIH HHS/ -- R01 EY008313/EY/NEI NIH HHS/ -- R01 EY008313-14/EY/NEI NIH HHS/ -- R01 HL066251/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2004 Jun 4;304(5676):1509-13. Epub 2004 Apr 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of California, Los Angeles, CA 90095, USA. jjen@ucla.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15105459" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Alternative Splicing ; Amino Acid Motifs ; Amino Acid Sequence ; Axons/*physiology ; Evoked Potentials, Motor ; Evoked Potentials, Somatosensory ; Female ; Functional Laterality ; Genetic Linkage ; Humans ; In Situ Hybridization ; Magnetic Resonance Imaging ; Male ; Medulla Oblongata/growth & development/pathology ; Microsatellite Repeats ; Molecular Sequence Data ; Morphogenesis ; Mutation ; Neural Pathways ; Ophthalmoplegia/*genetics/pathology/physiopathology ; Pedigree ; Protein Structure, Tertiary ; Receptors, Immunologic/chemistry/*genetics/*metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Rhombencephalon/*growth & development/pathology ; Scoliosis/*genetics/pathology/physiopathology ; Sequence Analysis, DNA ; Syndrome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2004-12-14
    Description: We report a draft sequence for the genome of the domesticated silkworm (Bombyx mori), covering 90.9% of all known silkworm genes. Our estimated gene count is 18,510, which exceeds the 13,379 genes reported for Drosophila melanogaster. Comparative analyses to fruitfly, mosquito, spider, and butterfly reveal both similarities and differences in gene content.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xia, Qingyou -- Zhou, Zeyang -- Lu, Cheng -- Cheng, Daojun -- Dai, Fangyin -- Li, Bin -- Zhao, Ping -- Zha, Xingfu -- Cheng, Tingcai -- Chai, Chunli -- Pan, Guoqing -- Xu, Jinshan -- Liu, Chun -- Lin, Ying -- Qian, Jifeng -- Hou, Yong -- Wu, Zhengli -- Li, Guanrong -- Pan, Minhui -- Li, Chunfeng -- Shen, Yihong -- Lan, Xiqian -- Yuan, Lianwei -- Li, Tian -- Xu, Hanfu -- Yang, Guangwei -- Wan, Yongji -- Zhu, Yong -- Yu, Maode -- Shen, Weide -- Wu, Dayang -- Xiang, Zhonghuai -- Yu, Jun -- Wang, Jun -- Li, Ruiqiang -- Shi, Jianping -- Li, Heng -- Li, Guangyuan -- Su, Jianning -- Wang, Xiaoling -- Li, Guoqing -- Zhang, Zengjin -- Wu, Qingfa -- Li, Jun -- Zhang, Qingpeng -- Wei, Ning -- Xu, Jianzhe -- Sun, Haibo -- Dong, Le -- Liu, Dongyuan -- Zhao, Shengli -- Zhao, Xiaolan -- Meng, Qingshun -- Lan, Fengdi -- Huang, Xiangang -- Li, Yuanzhe -- Fang, Lin -- Li, Changfeng -- Li, Dawei -- Sun, Yongqiao -- Zhang, Zhenpeng -- Yang, Zheng -- Huang, Yanqing -- Xi, Yan -- Qi, Qiuhui -- He, Dandan -- Huang, Haiyan -- Zhang, Xiaowei -- Wang, Zhiqiang -- Li, Wenjie -- Cao, Yuzhu -- Yu, Yingpu -- Yu, Hong -- Li, Jinhong -- Ye, Jiehua -- Chen, Huan -- Zhou, Yan -- Liu, Bin -- Wang, Jing -- Ye, Jia -- Ji, Hai -- Li, Shengting -- Ni, Peixiang -- Zhang, Jianguo -- Zhang, Yong -- Zheng, Hongkun -- Mao, Bingyu -- Wang, Wen -- Ye, Chen -- Li, Songgang -- Wang, Jian -- Wong, Gane Ka-Shu -- Yang, Huanming -- Biology Analysis Group -- 1 P50 HG02351/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1937-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Southwest Agricultural University, Chongqing Beibei, 400716, China. xiaqy@swau.cq.cn〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15591204" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Anopheles/genetics ; Body Patterning/genetics ; Bombyx/*genetics/growth & development/metabolism ; Butterflies/genetics ; Computational Biology ; DNA Transposable Elements ; Drosophila melanogaster/genetics ; Exocrine Glands/metabolism ; Expressed Sequence Tags ; Female ; Genes, Homeobox ; *Genes, Insect ; *Genome ; Immunity, Innate/genetics ; Insect Hormones/genetics ; Insect Proteins/genetics ; Male ; Molecular Sequence Data ; *Sequence Analysis, DNA ; Sequence Homology, Nucleic Acid ; Sex Determination Processes ; Spiders/genetics ; Wings, Animal/growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Publication Date: 2000-01-05
    Description: The hCHK2 gene encodes the human homolog of the yeast Cds1 and Rad53 G2 checkpoint kinases, whose activation in response to DNA damage prevents cellular entry into mitosis. Here, it is shown that heterozygous germ line mutations in hCHK2 occur in Li-Fraumeni syndrome, a highly penetrant familial cancer phenotype usually associated with inherited mutations in the TP53 gene. These observations suggest that hCHK2 is a tumor suppressor gene conferring predisposition to sarcoma, breast cancer, and brain tumors, and they also provide a link between the central role of p53 inactivation in human cancer and the well-defined G2 checkpoint in yeast.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bell, D W -- Varley, J M -- Szydlo, T E -- Kang, D H -- Wahrer, D C -- Shannon, K E -- Lubratovich, M -- Verselis, S J -- Isselbacher, K J -- Fraumeni, J F -- Birch, J M -- Li, F P -- Garber, J E -- Haber, D A -- New York, N.Y. -- Science. 1999 Dec 24;286(5449):2528-31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Massachusetts General Hospital Center for Cancer Risk Analysis and Harvard Medical School, Building 149, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10617473" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Apoptosis ; Brain Neoplasms/genetics ; Breast Neoplasms/genetics ; Checkpoint Kinase 2 ; Female ; G1 Phase ; *G2 Phase ; *Genes, Tumor Suppressor ; Genes, p53 ; Genetic Predisposition to Disease ; *Germ-Line Mutation ; Heterozygote ; Humans ; Li-Fraumeni Syndrome/enzymology/*genetics/pathology ; Male ; Pedigree ; Polymorphism, Genetic ; Protein Kinases/genetics ; Protein-Serine-Threonine Kinases/*genetics/metabolism ; Sarcoma/genetics ; Signal Transduction ; Tumor Cells, Cultured
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
    Publication Date: 2004-02-14
    Description: The life cycles of sexually reproducing animals and flowering plants begin with male and female gametes and their fusion to form a zygote. Selection at this earliest stage is crucial for offspring quality and raises similar evolutionary issues, yet zoology and botany use dissimilar approaches. There are striking parallels in the role of prezygotic competition for sexual selection on males, cryptic female choice, sexual conflict, and against selfish genetic elements and genetic incompatibility. In both groups, understanding the evolution of sex-specific and reproductive traits will require an appreciation of the effects of prezygotic competition on fitness.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bernasconi, G -- Ashman, T-L -- Birkhead, T R -- Bishop, J D D -- Grossniklaus, U -- Kubli, E -- Marshall, D L -- Schmid, B -- Skogsmyr, I -- Snook, R R -- Taylor, D -- Till-Bottraud, I -- Ward, P I -- Zeh, D W -- Hellriegel, B -- New York, N.Y. -- Science. 2004 Feb 13;303(5660):971-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institute of Environmental Sciences, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland. bernasco@uwinst.unizh.ch〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963320" target="_blank"〉PubMed〈/a〉
    Keywords: Angiosperms/*physiology ; Animals ; *Biological Evolution ; Competitive Behavior ; Copulation ; Female ; Gene Expression ; Male ; Pollen/*physiology ; *Reproduction ; Selection, Genetic ; Sex Characteristics ; *Sexual Behavior, Animal ; Spermatozoa/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
    Publication Date: 2004-12-03
    Description: A sample return mission is an important next step in the exploration of Mars. The first sample return should come early in the program time-line because the science derived from earth-based analyses of samples provides crucial "ground truth" needed for further exploration planning, enhancement of remote measurements, and achieving science goals and objectives that include: (1) the search for environments that may support life and any indicators of the past or present existence of life, (2) understanding the history of water and climate on Mars, (3) understanding the evolution of Mars as a planet. Returned samples from Mars will have unique value because they can be studied by scientists worldwide using the most powerful analytical instruments available. Furthermore, returned Mars samples can be preserved for studies by future generations of scientists using new techniques and addressing new issues in Mars science. To ensure a high likelihood of success, the first sample return strategy should be simple and focused. We outline a fundamental set of sample requirements and acquisition priorities for Mars sample return.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Concepts and Approaches for Mars Exploration; Part 1; 2; LPI-Contrib-1062
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  • 6
    Publication Date: 2018-06-08
    Description: We will report on our investigation of the solar wind/Mars boundaries and on their dependence on the near surface magnetic anomalies.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Millennium Conference, Earth and Planetary Sciences; Nice; France
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  • 7
    Publication Date: 2018-06-11
    Description: The Miniature Thermal Emission Spectrometer (Mini-TES) on Spirit has studied the mineralogy and thermophysical properties at Gusev crater. Undisturbed soil spectra show evidence for minor carbonates and bound water. Rocks are olivinerich basalts with varying degrees of dust and other coatings. Dark-toned soils observed on disturbed surfaces may be derived from rocks and have derived mineralogy (+/-5 to 10%) of 45% pyroxene (20% Ca-rich pyroxene and 25% pigeonite), 40% sodic to intermediate plagioclase, and 15% olivine (forsterite 45% +/-5 to 10). Two spectrally distinct coatings are observed on rocks, a possible indicator of the interaction of water, rock, and airfall dust. Diurnal temperature data indicate particle sizes from 40 to 80 microm in hollows to approximately 0.5 to 3 mm in soils.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Science (ISSN 0036-8075); Volume 305; 5685; 837-42
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  • 8
    Publication Date: 2000-09-23
    Description: Insulin receptors (IRs) and insulin signaling proteins are widely distributed throughout the central nervous system (CNS). To study the physiological role of insulin signaling in the brain, we created mice with a neuron-specific disruption of the IR gene (NIRKO mice). Inactivation of the IR had no impact on brain development or neuronal survival. However, female NIRKO mice showed increased food intake, and both male and female mice developed diet-sensitive obesity with increases in body fat and plasma leptin levels, mild insulin resistance, elevated plasma insulin levels, and hypertriglyceridemia. NIRKO mice also exhibited impaired spermatogenesis and ovarian follicle maturation because of hypothalamic dysregulation of luteinizing hormone. Thus, IR signaling in the CNS plays an important role in regulation of energy disposal, fuel metabolism, and reproduction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bruning, J C -- Gautam, D -- Burks, D J -- Gillette, J -- Schubert, M -- Orban, P C -- Klein, R -- Krone, W -- Muller-Wieland, D -- Kahn, C R -- DK31036/DK/NIDDK NIH HHS/ -- DK55326-01A2/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2000 Sep 22;289(5487):2122-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Klinik II und Poliklinik fur Innere Medizin and Center of Molecular Medicine (ZMMK) der Universitat zu Koln, Joseph Stelzmann Strasse 9, 50931 Cologne, Germany. jens.bruening@uni-koeln.de〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11000114" target="_blank"〉PubMed〈/a〉
    Keywords: Adipose Tissue ; Animals ; Blood Glucose/analysis ; *Body Weight ; Brain/*metabolism ; Eating ; Female ; Hypertriglyceridemia/etiology ; Insulin/blood/*physiology ; Insulin Resistance ; Leptin/blood ; Leuprolide/pharmacology ; Luteinizing Hormone/blood ; Male ; Mice ; Mice, Knockout ; Neurons/metabolism ; Obesity/etiology ; Ovarian Follicle/physiology ; Receptor, Insulin/genetics/*physiology ; *Reproduction ; Sex Characteristics ; Signal Transduction ; Spermatogenesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2011-08-24
    Description: The Composite Infrared Spectrometer observed Jupiter in the thermal infrared during the swing-by of the Cassini spacecraft. Results include the detection of two new stratospheric species, the methyl radical and diacetylene, gaseous species present in the north and south auroral infrared hot spots; determination of the variations with latitude of acetylene and ethane, the latter a tracer of atmospheric motion; observations of unexpected spatial distributions of carbon dioxide and hydrogen cyanide, both considered to be products of comet Shoemaker-Levy 9 impacts; characterization of the morphology of the auroral infrared hot spot acetylene emission; and a new evaluation of the energetics of the northern auroral infrared hot spot.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Science (ISSN 0036-8075); Volume 305; 5690; 1582-6
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  • 10
    Publication Date: 2004-12-03
    Description: Existing measurements and modeling studies indicate that the climate and general circulation of the thin, predominately CO2 Martian atmosphere are characterized by large-amplitude variations with a wide range of spatial and temporal scales. Remote sensing observations from Earth-based telescopes and the Mariner 9, Viking, Phobos, and Mars Global Surveyor (MGS) orbiters show that the prevailing climate includes large-scale seasonal variations in surface and atmospheric temperatures (140 to 300 K), dust optical depth (0.15 to 1), and water vapor (10 to 100 precipitable microns). These observations also provided the first evidence for episodic regional and global dust storms that produce even larger perturbations in the atmospheric thermal structure and general circulation. In-situ measurements by the Viking and Mars Pathfinder Landers reinforced these conclusions, documenting changes in the atmospheric pressure on diurnal (5%) and seasonal (〉20%) time scales, as well as large diurnal variations in the near-surface temperature (40 to 70 K), wind velocity (0 to 35 m/s), and dust optical depth (0.3 to 6). These in-situ measurements also reveal phenomena with temporal and spatial scales that cannot be resolved from orbit, including rapid changes in near-surface temperatures (+/- 10 K in 10 seconds), large near-surface vertical temperature gradients (+/- 15 K/meter), diurnally-varying slope winds, and dust devils . Modeling studies indicate that these changes are forced primarily by diurnal and seasonal variations in solar insolation, but they also include contributions from atmospheric thermal tides, baroclinic waves (fronts), Kelvin waves, slope winds, and monsoonal flows from the polar caps.
    Keywords: Lunar and Planetary Science and Exploration
    Type: Concepts and Approaches for Mars Exploration; Part 1; 84; LPI-Contrib-1062
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