Search results for "Dons"

Interest-based topology management in unstructured peer-to-peer networks

2012

Ultrasound-based testing of tendon mechanical properties: a critical evaluation.

2015

In the past 20 years, the use of ultrasound-based methods has become a standard approach to measure tendon mechanical properties in vivo. Yet the multitude of methodological approaches adopted by various research groups probably contribute to the large variability of reported values. The technique of obtaining and relating tendon deformation to tensile force in vivo has been applied differently, depending on practical constraints or scientific points of view. Divergence can be seen in 1) methodological considerations, such as the choice of anatomical features to scan and to track, force measurements, or signal synchronization; and 2) in physiological considerations related to the viscoelas…

Force-, power-, and elasticity-velocity relationships in walking, running, and jumping

1980

Ground reaction forces and mechanical power were investigated when the subjects walked normally, while they were racing or running at four speeds, and when they performed the running long jump take-off. In addition, the apparent spring constants of the support leg in eccentric and concentric phases were investigated at the four running speeds, during the running long jump take-off, and in the triple jump. Six club level track and field athletes, four national level long jumpers, and six national level triple jumpers took part in the study. Cinematographic technique and a mathematical model of hopping (Alexander and Vernon 1975) were employed in the analysis. Force and power values were foun…

Platona darba “Faidons” lasījumi: Gregorija Vlastosa, Hansa-Georga Gadamera un Aleksandra Nehamasa pieejas

2018

Šajā bakalaura darbā pievēršos trīs nozīmīgu 20. gadsimta Platona lasītāju - Gregorija Vlastosa, Hansa-Georga Gadamera un Aleksandra Nehamasa - tekstiem, kas veltīti Platona darbam Faidons. Darba pirmajās trīs nodaļās aplūkoju katra autora trīs Faidonu komentējošus tekstus, pieņēmumus, secinājumus un pieejas, kas tajos uzrādāmas, kā arī katra autora saistību ar Platona lasījumu tradīcijām. Ceturtajā nodaļā salīdzinu kopīgo un atšķirīgo Vlastosa, Gadamera un Nehamasa uzskatos un metodēs, bet darba noslēgumā sniedzu visu trīs autoru pieeju izvērtējumu. Darba ietvaros aplūkoju Gregorija Vlastosa darbus “Iemesli un cēloņi Faidonā”, “Piezīme par “pāviliskajām predikācijām” Platona darbos” un “Re…

Phosphorylation of Elp1 by Hrr25 is required for elongator-dependent tRNA modification in yeast.

2014

Elongator is a conserved protein complex comprising six different polypeptides that has been ascribed a wide range of functions, but which is now known to be required for modification of uridine residues in the wobble position of a subset of tRNAs in yeast, plants, worms and mammals. In previous work, we showed that Elongator's largest subunit (Elp1; also known as Iki3) was phosphorylated and implicated the yeast casein kinase I Hrr25 in Elongator function. Here we report identification of nine in vivo phosphorylation sites within Elp1 and show that four of these, clustered close to the Elp1 C-terminus and adjacent to a region that binds tRNA, are important for Elongator's tRNA modification…

Advanced voice and data solutions for evolution of cellular network system

2014

Radionuklīdu piesārņojuma kontrole bīstamo atkritumu pārvaldības valsts aģentūras objektu pazemes ūdeņos

2017

Rаdionuklīdu piesārņojumа kontrole bīstаmo аtkritumu pārvаldībаs vаlsts аģentūrаs objektu pаzemes ūdeņos Rundāne. I, zinātniskā vаdītājа Dr. сhem. Pаjuste E. Mаģistrа dаrbs. 58 lаppuses, 29 аttēls, 11 tаbulаs, 36 literаtūrаs аvoti. Lаtviešu vаlodā. Dаrbā аnаlizētа rаdionuklīdu H3, Сs137, Th 232 un U238 īpаtnējā аktivitātē RАG Rаdons pаzemes ūdeņos no urbumiem B-3 un B-4. Аnаlizēti pārskаtа ikmānešа rezultāti pаr lаikа posmu no 2011. gаdа līdz 2016. gаdаm. Noskаidrots, kа аktivitāte nepārsniedz pieļаujаmo līmeni nevienā no urbumiem, bet ir novērotаs tritijа īpаtnējās rаdioаktivitātes svārstībаs. Bаlstoties uz pārskаtu rezultātiem izstrādātаs rekomendāсijаs monitoringа progrаmmаs uzlаbošаnаi.…

Positioning of the cross-stitch on the modified Kessler core tendon suture

2018

[EN] Cryopreserved human tendons were sutured with different variations of a modified Kessler-type grasping suture in a series of different designs in order to assess the influence of the distance between the cross-stitch on the core suture (5 and 10 mm from the cut tendon edge) on the peripheral suture. An original mathematical model was employed to explain the mechanical behavior (strength, deformation, and distribution of load) of the different suture designs. The effect of the peripheral epitendinous suture, combined with the distance of the core suture, was evaluated. The variation of core suture distance had no relevant consequences on the overall resilience of the design. However, in…

Unilateral neonatal cerebral infarction in full term infants

1997

AIMS—To determine the prevalence of unilateral neonatal cerebral infarction in infants born at 32 weeks gestation and above; to describe the clinical course, imaging results, and outcome of neonatal cerebral infarction; and to investigate possible aetiology.
METHODS—Twelve cases of unilateral neonatal cerebral infarction were identified from neonatal unit records for the years 1987-93. Each case was matched with two controls.
RESULTS—All cases of neonatal cerebral infarction occurred in full term infants. The prevalence was around 1 in 4000, and neonatal cerebral infarction was found in 12% of infants presenting with neonatal seizures. Cerebral ultrasound scans failed to demonstrate lesions…

Homo ludens - homo viator : le jongleur au coeur des échanges culturels au Moyen Age

2002

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