Search results for "fixation"
showing 10 items of 482 documents
Evolution of Leaf Morphogenesis: Evidence from Developmental and Phylogenetic Data in Papaveraceae
1999
Variation of leaf morphology in Papaveraceae s.l. (including Fumariaceae and Pteridophyllum) has previously been shown to be related to developmental differences in the direction of segmentation and in blade‐petiole differentiation. Based on ontogenetic comparisons, we here distinguish polyternate, acropetal, basipetal‐pedate, basipetal‐pinnate, and divergent modes of dissection. In addition, undissected leaves occur in some taxa. Dissection modes can be grouped in two classes on the basis of blade‐petiole differentiation. Mapping of these morphogenetic traits on an independently obtained phylogenetic reconstruction reveals a high degree of homoplasy, indicating multiple evolutionary parall…
ChemInform Abstract: Dissymmetric Calix(4)arenes with C4- and C2-Symmetry. Synthesis, X-Ray Structures, Conformational Fixation, and 1H NMR Spectrosc…
2010
Laboratory Technologies and Methodologies
2010
Attitudine alla consociazione di diverse leguminose foraggere mediterranee.
2011
Iodide-Photocatalyzed Reduction of Carbon Dioxide to Formic Acid with Thiols and Hydrogen Sulfide.
2016
The photolysis of iodide anions promotes the reaction of carbon dioxide with hydrogen sulfide or thiols to quantitatively yield formic acid and sulfur or disulfides. The reaction proceeds in acetonitrile and aqueous solutions, at atmospheric pressure and room temperature by irradiation using a low-pressure mercury lamp. This transition-metal-free photocatalytic process for CO2 capture coupled with H2 S removal may have been relevant as a prebiotic carbon dioxide fixation.
Tehnisko kļūdu novērtēšana un izskaušana rinomanometrijā
2016
KOPASAVILKUMS Ievads: Jaunas metodes tiek ieviestas, lai rastu vienkāršākus un ātrākus risinājumus spiediena caurules fiksācijai rimomanometrijā. Svarīgi ir pētīt ietekmes uz gaisa plūsmu, lai izvairītos no kļudainiem mērījumiem. Ar datorprogrammu saistītā rinomanometrija pamazām tiek aizstāta ar PNIF ierīci, jo tā ir lētāka un vieglāka lietošanā, līdz ar to ir svarīgi vispirms novērot korelāciju starp abām metodēm. Mērķis: Diplomdarba mērķis bija apzināties un piefiksēt kļūdas un sarežģījumus, kādi rodas veicot četru fāzu rinomanometriju, izmantojot dažādas spiediena caurulītes piestiprināšanas metodes. Vēlviens uzdevums bija apzināties un piefiksēt kļūdas, kas rodas PNIF testa procesā, kā…
The current state of the art of angle-stable volar plating in the treatment of distal epiphisis fractures
2011
The influence of eye movements on the temporal features of executed and imagined arm movements.
2007
The very close coordination between eye and hand indicates that eye movements are parts of the neural processes underlying the planning and control of arm movements. Eye movements are fundamental during observed actions and play a functional role in visual mental imagery. However, the role of eye movements during imagined actions is still unknown. Here, we report the timing features of eye and arm pointing movements for nine healthy participants in four conditions: Executed movements with orientation saccades (Eyes Free) or with no saccades (Eyes Motionless), and Imagined movements with Eyes Free or with Eyes Motionless. The first result was a facilitation effect of saccades upon both execu…
Improving accuracy of the intermediate splint in substantial intermaxillary sagittal discrepancies using an extra anterior anchorage point: technical…
2021
Background To describe a technical feature that increases the stability of the intermediate splint in patients where bimaxillary surgery with great maxillary/mandibular advancements are planned. Material and Methods Prospective evaluation of the intermediate splint dental vertical penetration in patients undergoing bimaxillary surgery where great sagittal discrepancy occur in the anterior sector between the upper and lower jaws when the intermediate splint is placed by adding an extra intermaxillary fixation (IMF) screw (2x9 mm) placed between the central incisors of the maxilla and fixed to the most anterior aspect of the intermediate splint following the direction of the sagittal maxillo-…
Isotopic fractionation due to N2 fixation in various grain legumes
2004
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