18 research outputs found
Мобильное приложение для курьерской службы доставки «Ptichka»
Целью работы является реализация кроссплатформенного мобильного приложения для курьерской службы доставки "Ptichka". В процессе выполнения выпускной квалификационной работы проводился сравнительный анализ технологий разработки мобильных
приложении?, с целью выбора наиболее подходящей для решения целей
данной работы.The aim of the work is implementation a cross-platform mobile application for courier delivery service "Ptichka"
Разработка системы управления теплопотреблением административного здания
В выпускной квалификационной работе рассматривается система управления теплопотреблением административного здания в г. Томске по адресу ул. Предвокзальная 49/3. Согласно федеральному закону №263-ФЗ о энергосбережением, был создан проект по внедрению системы диспетчерезации и автоматизации теплового узла. При разработке проекта был произведен выбор оборудования и рассчитаны гидравлические потери, социальная ответственность и экономический эффект внедрения данной системы.Final qualifying work contains a review of a system that manages the heat consumption in the administrative building in Tomsk, Predvokzalnaya street 49/3. According to the federal law #263 about energy-saving, one of the projects was developed to implement a dispatch and automation system for the heat node. During the development of the project the equipment was selected, the hydraulic losses were calculated same as the social responsibility and economic effect of the introduction of this system
Monitoring of cerebrovascular autoregulation: facts, myths, and missing links
The methods for continuous assessment of cerebral autoregulation using correlation, phase shift, or transmission (either in time- or frequency-domain) were introduced a decade ago. They express dynamic relationships between slow waves of transcranial Doppler (TCD), blood flow velocity (FV) and cerebral perfusion pressure (CPP), or arterial pressure (ABP). We review a methodology and clinical application of indices useful for monitoring cerebral autoregulation and pressure-reactivity in various scenarios of neuro-critical care. FACTS: Poor autoregulation and loss of pressure-reactivity are independent predictors of fatal outcome following head injury. Autoregulation is impaired by too low or too high CPP when compared to autoregulation with normal CPP (usually between 60 and 85 mmHg; and these limits are highly individual). Hemispheric asymmetry of the bi-laterally assessed autoregulation has been associated with asymmetry of CT scan findings: autoregulation was found to be worse ipsilateral to contusion or lateralized edema causing midline shift. The pressure-reactivity (PRx index) correlated with a state of low CBF and CMRO2 revealed using PET studies. The PRx is easier to monitor over prolonged periods of time than the TCD-based indices as it does not require fixation of external probes. Continuous monitoring with the PRx can be used to direct CPP-oriented therapy by determining the optimal CPP for pressure-reactivity. Autoregulation indices are able to reflect transient changes of autoregulation, as seen during plateau waves of ICP. However, minute-to-minute assessment of autoregulation has a poor signal-to-noise ratio. Averaging across time (30 min) or by combining with other relevant parameters improves the accuracy. MYTHS: It is debatable whether the TCD-based indices in head injured patients can be calculated using ABP instead of CPP. Thresholds for functional and disturbed autoregulation dramatically depends on arterial tension of CO2--therefore, comparison between patients cannot be performed without comparing their PaCO2. The TCD pulsatility index cannot accurately detect the lower limit of autoregulation. MISSING LINKS: We still do not know whether autoregulation-oriented therapy can be understood as a consensus between CPP-directed protocols and the Lund-concept. What are the links between endothelial function and autoregulation indices? Can autoregulation after head injury be improved with statins or EPO, as in subarachnoid hemorrhage? In conclusion, monitoring cerebral autoregulation can be used in a variety of clinical scenarios and may be helpful in delineating optimal therapeutic strategies
Cerebral perfusion pressure or arterial pressure only: How to assess dynamic cerebral autoregulation more accurately?
Is There a Direct Link Between Cerebrovascular Activity and Cerebrospinal Fluid Pressure-Volume Compensation?
Construction of a recombinant autolytic wine yeast strain overexpressing the csc1-1 allele
During the aging step of sparkling wines and wines aged on lees, yeast cells kept in contact with the wine finally die and undergo autolysis, releasing cellular compounds with a positive effect on the wine quality. In view of the interest of autolysis for wine properties, biotechnologists have tried to improve autolytic yield during winemaking. In this work we used genetic engineering techniques to construct an autolytic industrial strain by expressing the csc1-1 allele from the RDN1 locus. The expression of this mutant allele, that causes a “constitutive in autophagy phenotype,” resulted in accelerated autolysis of the recombinant strain. Although autophagic phenotype due to csc1-1 expression has been reported to require the mutant allele in multicopy, autolytic acceleration was achieved by expressing only one or two copies of the gene under the control of the constitutive promotor pTDH3. The acceleration of autolysis together with the unaltered fermentative capacity, strongly supported the overexpression of csc1-1 allele as a strategy to obtain wines with aged-like properties in a shortened timeThis work was supported by the Spanish Ministerio de Educación y Ciencia (grants AGL2006-02558, and Consolider CSD2007-00063); and the Comunidad de Madrid local Government (grant S-505/AGR-0153)Peer reviewe
Short-term moderate hypocapnia augments detection of optimal cerebral perfusion pressure.
An autoregulation-oriented strategy has been proposed to guide neurocritical therapy toward the optimal cerebral perfusion pressure (CPPOPT). The influence of ventilation changes is, however, unclear. We sought to find out whether short-term moderate hypocapnia (HC) shifts the CPPOPT or affects its detection. Thirty patients with traumatic brain injury (TBI), who required sedation and mechanical ventilation, were studied during 20 min of normocapnia (5.1±0.4 kPa) and 30 min of moderate HC (4.4±3.0 kPa). Monitoring included bilateral transcranial Doppler of the middle cerebral arteries (MCA), invasive arterial blood pressure (ABP), and intracranial pressure (ICP). Mx -autoregulatory index provided a measure for the CPP responsiveness of MCA flow velocity. CPPOPT was assessed as the CPP at which autoregulation (Mx) was working with the maximal efficiency. During normocapnia, CPPOPT (left: 80.65±6.18; right: 79.11±5.84 mm Hg) was detectable in 12 of 30 patients. Moderate HC did not shift this CPPOPT but enabled its detection in another 17 patients (CPPOPT left: 83.94±14.82; right: 85.28±14.73 mm Hg). The detection of CPPOPT was achieved via significantly improved Mx-autoregulatory index and an increase of CPP mean. It appeared that short-term moderate HC augmented the detection of an optimum CPP, and may therefore usefully support CPP-guided therapy in patients with TBI