Search results for "WEIGHT"

showing 10 items of 2980 documents

The sensorimotor and cognitive integration of gravity.

1998

In order to demonstrate that gravity is not only a load acting locally and continuously on the body limbs, but is also used by higher levels of the nervous system as a dynamic orienting reference for the elaboration of the motor act, a review of several experiments conducted both in 1 g and 0 g are presented. During various locomotor tasks, the strategy that consists of stabilizing the head with respect to gravity illustrates one of the solutions used by the CNS to optimize the control of dynamic equilibrium. A question which remains to be solved when considering experimental results obtained in weightlessness concerns, however, the maintenance of motor schema that has evolved under normal …

Gravity (chemistry)WeightlessnessProcess (engineering)WeightlessnessGeneral NeuroscienceMovementPostureInformation processingMotor controlBody movementKinematicsCognitionControl theoryArmHumansNeurology (clinical)Gravity SensingRepresentation (mathematics)PsychologyNeuroscienceGravitationBrain research. Brain research reviews
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Effectiveness of a Physical Education Program on the Motor and Pre-literacy Skills of Preschoolers From the Training-To-Health Project: A Focus on We…

2020

Many studies reported a positive relationship between motor skills, cognitive functions, and school performance in school-age children; however, little is known in preschool children. The aim of the present study was to demonstrate the effectiveness of a physical education program (PEP) on locomotor, object control skills, and pre-literacy cognitive functions in a wide population of preschoolers and verify whether weight status could influence these abilities. In the context of the Training-to-Health Project, a sample of 1,029 preschoolers was recruited in kindergartens from the urban area of Palermo (Italy). Their gross motor and pre-literacy skills were tested before (PRE) and after (POST…

Gross motor skillPopulationeducationContext (language use)Body awarenessAffect (psychology)Developmental psychologyPhysical education03 medical and health scienceslcsh:GV557-1198.9950302 clinical medicine030212 general & internal medicineeducationMotor skillOriginal Researchlcsh:Sportseducation.field_of_studySettore M-EDF/02 - Metodi E Didattiche Delle Attivita' Sportivemotor skillsCognition030229 sport sciencespreschoolerpre-literacy skillsweight statusphysical educationSports and Active LivingPsychologySettore M-EDF/01 - Metodi E Didattiche Delle Attivita' Motorie
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European vestibular experiments on the Spacelab-1 mission: 2. Experimental equipment and methods

1986

A series of vestibular experiments were performed in conjunction with the first Spacelab mission, consisting of sets of pre-, in- and postflight tests. A multipurpose experimental apparatus used for the diverse flight and ground tests is presented. Additional apparatus together with the multi-purpose package were used in the baseline data collection facility at the landing site at NASA Dryden Flight Research Facility for the ground tests. The tests involved optokinetic, caloric and mechanical (whole-body or head-alone) stimulation. The latter included linear acceleration in the subject's x, y and z axes, static roll and yaw about an earth-vertical axis. Physiological parameters such as elec…

Ground testingmedicine.medical_specialtyComputer scienceAccelerationCardiovascular Physiological PhenomenamedicineLinear accelerationHumansAerospace engineeringVestibular function testsMonitoring PhysiologicVestibular systemWeightlessnessbusiness.industryWeightlessnessRespirationGeneral NeuroscienceCaloric theoryBaseline dataSpace FlightVestibular Function TestsElectrooculographyAerospace MedicineVestibule LabyrinthAviation medicinebusinessExperimental Brain Research
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Isolation and Characterization of Epidermal DNA and RNA from Guinea Pig Skin

1971

DNA and RNA were isolated from mammalian epidermis in a relatively small scale procedure. The high purity and native state of the DNA isolated is reflected by its molar absorptivity E (P), its thermal hyperchromicity and its hyperchromicity upon DNase treatment and by its sedimentation profile as well as by its profile in a cesium chloride density gradient. The very low content of protein and RNA, as well as the data of DNA determination, indicate that this method permits the isolation of a highly purified product. This is further substantiated by the determination of UV absorption spectra and by analysis of the base composition.The mammalian skin DNA showed the following properties: Mol. w…

GuanineChemical PhenomenaGuanineRNase PGuinea PigsColorDermatologyBiologyBiochemistry03 medical and health scienceschemistry.chemical_compoundCytosine0302 clinical medicineRibonucleasesCentrifugation Density GradientAnimalsChemical PrecipitationMolecular Biology030304 developmental biologySkin0303 health sciencesDeoxyribonucleasesChemistry PhysicalAdenineHydrolysisSpectrum AnalysisHyperchromicityRNAPhosphorusDNACell BiologyMolecular biologyThymineSedimentation coefficientMolecular Weightchemistry030220 oncology & carcinogenesisRNACytosineDNAThymineDensitometryJournal of Investigative Dermatology
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Prevalence of silent fecal and urinary incontinence in women from the town of Teruel

2005

OBJECTIVES To study the prevalence of fecal (FI) and urinary incontinence (UI) in women from Teruel (Spain), as well as the clinical conditions associated with these disorders. METHODS We studied prospectively women with an age range of 20-64 years who were randomly selected from the population seen in a primary care center because of medical disorders not related to incontinence. Patients with functional or cognitive impairment were excluded. Medical and obstetric antecedents, as well as the type and frequency of incontinence symptoms were collected in a questionnaire. RESULTS Out of 115 women, 103 completed the study (mean age: 41+/-12 years range 20-64). UI was present in 34.9% (stress 3…

Gynecologyeducation.field_of_studymedicine.medical_specialtyPregnancyObstetricsbusiness.industryUrinary systemPopulationUrinary incontinenceGastroenterologyUrinary incontinenceGeneral MedicineOverweightmedicine.diseaseRisk factorsFecal incontinencePrevalencemedicineChildbirthFecal incontinenceWomenmedicine.symptomeducationbusinessBody mass indexRevista Española de Enfermedades Digestivas
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Potential health hazards of assisted human reproduction: Effects of manipulations in vitro of human oocytes and embryos on the birthweight of the res…

1995

Gynecologymedicine.medical_specialtyBirth weightRehabilitationObstetrics and GynecologyEmbryoBiologyOocyteIn vitromedicine.anatomical_structureReproductive MedicineRecien nacidomedicineRisk factorHuman Reproduction
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�ber den Stoffwechsel von radioaktiv markiertem Xylit bei der Ratte

1964

Verfuttert man erstmalig an Ratten14C-Xylit, so werden rund 60% der Substanz mit einer Halbwertszeit von 400 min oxydiert und als14CO2 ausgeatmet. Fur die Resorption bei erstmaliger Gabe haben wir eine Halbwertszeit von 7±1 Std ermittelt. Gibt man im Anschlus an eine Gewohnung an Xylit ein markiertes Praparat so werden fast 70% der Aktivitat mit einer Halbwertszeit von 230 min oxydiert und die Umsatzgeschwindigkeit hat sich verdreifacht. Eine ahnliche Steigerung erfahrt die Umsatzgeschwindigkeit im experimentellen Diabetes. Bei parenteraler Verabreichung des Xylits liegt der oxydierte Anteil bei 50%, wahrend die im Harn ausgeschiedene Aktivitat hoher liegt als bei peroraler Gabe. Die bei pa…

Gynecologymedicine.medical_specialtyBlood chemistryChemistryDrug DiscoverymedicineMolecular MedicineGeneral MedicineBody weightGenetics (clinical)Klinische Wochenschrift
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Einflüsse von Nahrungsaufnahme und Gewöhnung auf die Verteilung von 8-14C-Coffein bei der Ratte

1968

200 g schwere Ratten erhielten Losungen von14C-Coffein entweder nuchtern oder nach vorheriger Verabreichung von Kohlenhydrat, Eiweis und Fett. Die Nahrungszufuhr bedingte folgende Anderungen der Coffeinverteilung im Organismus gegenuber den nuchternen Tieren: die Coffeinresorption war deutlich verzogert, so das die14C-Aktivitatswerte im Serum und Carcass nur langsam anstiegen. Im weiteren Verlauf des Versuches erreichte der Abfall der14C-Aktivitat in Serum und Carcass und ihre Ausscheidung im Harn ein geringeres Ausmas.

Gynecologymedicine.medical_specialtyBlood serumChemistryDrug DiscoverymedicineMolecular MedicineGeneral MedicineBody weightGenetics (clinical)Klinische Wochenschrift
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Der Einfluss von Propions�ure auf den Stoffwechsel alloxandiabetischer Kaninchen

1956

Durchschnittlich scheiden Kaninchen an niedrigen Carbonsauren taglich 1,27 mA aus; es handelt sich dabei vermutlich fast ausschlieslich um die Ausscheidung von Buttersaure. Bei Verabreichung von Propionsaure in der von uns gewahlten Dosis andern sich die quantitativen Verhaltnisse nicht, dagegen konnte papierchromatographisch wahrscheinlich gemacht werden, das es neben der Buttersaureausscheidung auch zur Ausscheidung von Essigsaure kommt. Bei alloxandiabetischen Tieren ist eine betrachtliche Erhohung der taglichen Ausscheidungsquote an niederen Carbonsaure festzustellen. Neben der auch quantitativ im Vordergrund stehenden Eliminierung von Buttersaure ist eine geringgradige Essigsaureaussch…

Gynecologymedicine.medical_specialtyChemistryDrug DiscoverymedicineMolecular MedicineGeneral MedicineBody weightGenetics (clinical)Klinische Wochenschrift
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Untersuchungen über die chronische Toxizität der Ascorbinsäure bei der Ratte

1963

Bei einer chronischen Verabreichung (10 Wochen) von 6,5 g Ascorbinsaure je kg Korpergewicht per os wurden bei der Ratte keine schadlichen Wirkungen beobachtet, selbst wenn die Tiere einer Stressituation (4 Wochen dauernde eiweisarme Ernahrung) unterworfen wurden. Tagesdosen von 27,3 g/kg Korpergewicht erwiesen sich als sicher toxisch. Die Mortalitatsrate betrug bei dieser Dosierung 77% innerhalb von 4 Wochen. Auf Grund dieser Versuche kann man als oberste Grenze der Vertraglichkeit bei chronischer Zufuhr 10 g Ascorbinsaure je kg Korpergewicht annehmen. Unter Zugrundelegung dieser Zahl ergibt sich fur die als wunschenswert erachtete Tagesdosis von 75 mg fur den Menschen eine Sicherheitsspann…

Gynecologymedicine.medical_specialtyChemistryToxicitymedicineMedicine (miscellaneous)Body weightProtein intakeAscorbic acidBiochemistryChronic toxicityFood ScienceZeitschrift für Ernährungswissenschaft
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