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Showing 1 to 20 of 368 for “"Contractions"”.
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Log geometry and extremal contractions
The Minimal Model Program (in short, MMP) aims at classifying projective algebraic varieties from a birational point of view. That means that starting from a projective algebraic variety X, [Delta] it is allowed to change the variety under scrutiny as long as its field of rational functions remains …
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Contractions and Deformations of Lie Algebras
Made available in DSpace on 2014-12-11T18:23:36Z (GMT). No. of bitstreams: 1 7114707.pdf: 2619429 bytes, checksum: ffcd337566f7243eeb95fe37174d9958 (MD5) Previous issue date: 1970
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Multiparameter quantum groups: contractions and coloured generalisations.
This thesis is devoted to various algebraic as well as differential geometric aspects of multi- parameter quantum groups. In particular, we study some two-parameter quantum groups and associated structure of Hopf algebras. We focus our attention on a new quantum group, Gr,s, depending on two …
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Optimizing tensor contractions for nuclear correlation functions
Nuclear correlation functions reveal interesting physical properties of atomic nuclei, including ground state energies and scattering potentials. However, calculating their values is computationally intensive due to the fact that the number of terms from quantum chromodynamics in a nuclear wave …
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Modeling And Detection Of Uterine Contractions Using Magnetomyography
… framework for modeling and analyzing uterine contractions using biomagnetic measurements. The study of myometrium contractility during pregnancy is relevant to the field of reproductive assessment. Its clinical importance is grounded in the need for a better understanding of the …
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Gleason solutions and canonical models for row contractions
… model for completely non-coisometric (CNC) contractions to the setting of row contractions from several copies of a Hilbert space into itself. It is shown that a large class of of row contractions (including all CNC row contractions with commuting components) can be represented as extremal …
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POWER SPECTRAL ANALYSIS OF SURFACE MYOELECTRIC SIGNALS DURING DYNAMIC CONTRACTIONS
… reliable indicator of such changes during static contractions. Few such studies, however, are available in the literature for dynamic contractions. In this work, non-fatiguing, isotonic, constant velocity contractions of the right biceps brachii m. were studied. The median frequency and the …
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Spontaneous rhythmic contractions in the coarcted aorta of hypertensive rats
We examined the contractile behavior of isolated, arterial ring segments excised from Sprague-Dawley rats which had undergone a complete occlusion of the aorta between the origin of the renal arteries. Eight days post-occulsion, measurements in awake rats showed that arterial pressure in the …
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Comparing fatigue induced by isometric and shortening contractions in skeletal muscle
… force during shortening compared with isometric contractions is not completely understood. The focus of this thesis was to compare fatigue in repeated shortening contractions and isometric contractions and investigate if greater force loss during repeated shortening contractions is attributed to …
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Exploring Japanese learners' perception, production, and beliefs concerning spoken English contractions
This mixed-methods study examined the beliefs and performance of 10 adult Japanese speakers of English regarding the phenomenon of contraction in spoken English. Over the course of three months, a collective case study approach involving listening tasks and semi-structured interviews was employed …
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Attitude control on manifolds via optimization and contractions with automatic gain tuning
The attitude (or orientation) of an object is often crucial in its ability to perform a task, whether the task is driving a car, flying an aircraft, or focusing a satellite. In traditional control approaches, the attitude is often parameterized by Euler angles or unit quaternions which exhibit …
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Effects of muscle contractions on biceps brachii oxygenation investigated by near-infrared spectroscopy
… (concentric) and static (isometric) voluntary contractions, and electrically evoked isometric contractions. Therefore, the overall purpose of this thesis was to investigate the effects of muscle contractions on biceps brachii oxygenation and haemodynamics using NIRS...
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Development, Validation, and Application of Electromyometrial Imaging (EMMI) to Noninvasively Image Uterine Contractions
… specificity and accuracy in differentiating the contractions, whether they are functional or dysfunctional for delivery. Although electromyography/electrohysterography can measure uterine electrical activity using a few electrodes on the abdomen, this method lacks sufficient spatial resolution …
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Neuromuscular characteristics of eccentric contractions of the knee extensors and their muscle damage profiles
… (ECC) than isometric (ISO) and concentric (CON) contractions (actions). Unaccustomed ECC exercise induces muscle damage represented by prolonged impairment of muscle function and delayed onset muscle soreness (DOMS), but also confers protection from muscle damage, known as the repeated bout …
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Analysis of two methods of isometric muscle contractions during the anti-G straining maneuver
… (CO) between two methods of isometric muscle contractions during the Anti-G Straining Maneuver (AGSM). 12 subjects (ages 18 to 38 yrs, height 176.8 +/- 7.4 cm, body mass 78.8 +/- 15.6 kg, percent body fat 14.3 +/- 6.6%) participated in the study. The study was a one-way within-subject design …
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The Role of Kitlb on Development of Coordinated Muscular Contractions in the Zebrafish Gastrointestinal Tract
… (GI) motility is the spontaneous rhythmic contractions of smooth muscles that mix and propel the contents of the GI tract. Regulation of the complex muscular contractions is controlled by smooth muscles, interstitial cells of the Cajal (ICC) and enteric neurons. ICC act as pacemaker cells …
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