Изучение прогностической ценности клеток-эффекторов стромы переходноклеточных карцином мочевого пузыря

The prognostic value of number and composition of stromal effector cells in specimens removed during radical surgical treatment for transitional cell bladder carcinoma (Ta-4NxM0) was studied. Higher 5-year survival and less risk of recurrence corresponded to the lower count of effector cells (p = 0.007): lymphocytes (p = 0.024 and p = 0.057) and segmented leukocytes (p = 0.037 and p = 0.042). In patients without progressive cancer, the independent predictors of 5-year survival were the degree of homogeneous mast cell distribution (p = 0.041) and the count stromal lymphocytes (p = 0.070) while in those with stage pTa-pT1, these were the number of segmented leukocytes (p = 0.009) and lymphocytes (p = 0.025) of the stroma (R2 = 0.32; p = 0.008).

KNOWLEDGE MANAGEMENT STRATEGIES AND ORGANIZATIONAL PERFORMANCE IN ABU DHABI: A STRUCTURAL EQUATION MODELING (SEM) APPROACH

The aim of this study is to measure the knowledge management strategies and organizational performance in Abu Dhabi utilizing a structural equation modeling (SEM) approach. The research method of this research is a solely quantitative method where the total sample size is considered 331 employing simple random sampling. For this research, the structural model exhibited the relationships among the variables. The findings reveal that, knowledge management structure is positively related to knowledge management strategy, same to knowledge management practice is positively related to knowledge management strategy. However, knowledge management structure was found not really positively related to organizational performance. Unexpectedly, knowledge management practice has not also found significant either in terms of positively related to organizational performance. On the other hand, knowledge management strategy is positively related to organizational performance as well as reciprocal relationship found between knowledge management structure and knowledge management practice. This research has contributed to the existing knowledge by providing an empirically validated model which could be used to predict the organizational performance as a whole.  Article visualizations

Mechanical Properties Comparison of Four Models, Failure Theories Study and Estimation of Thermal Expansion Coefficients for Artificial E-glass Polyester Composite

In this paper, the mechanical properties of artificial E-glass reinforced polyester composite were evaluated; the elastic properties and the strength of the composite were measured experimentally by tensile tests and then compared with the predicted values by theoretical four micromechanical constitutive models. The strength of the composite lamina and laminates were also determined experimentally and compared with five widely used theoretical failure theories. The lamination theory was also used to determine the strength of laminates by applying Hill- Tsai failure criterion. The theoretical models showed that the composite stiffness increases with increasing the fibre volume fraction and the volume fraction which gave the best fit to the experimental results of elastic modulus (E1) corresponds to volume fraction (Vf) equal 0.37. The stiffness of a unidirectional lamina depends on the fiber orientation relative to the off-axis load direction, and it drops sharply as the fiber alignment angle increases. In addition, the prediction of thermal expansion coefficients of composite is carried out in the present analysis, whereas the values of the coefficient that estimated to be based on the mechanical properties of the certain composite theoretically and experimentally

Response of Pear Fruit Cv. Butirra Precoce Morettini to Kmno4, Bread Yeast at Two Storage Periods.

This study was carried out on fruits of five years old pear trees (Pyrus communis L) in the central laboratory in Agricultural Faculty/ Duhok University / Iraqi Kurdistan Region, during growing season 2012, to investigate the effect of potassium permanganates (KMnO4), bread yeast and storage periods on fruit storage behavior of Butirra Precoce Morettini pear fruit. The results revealed that the fruit treated with 10 g KMnO4 / bag increased significantly the firmness but the weight loss percent was significantly decreased. Also fruit dipped in 4% bread yeast caused a significant increase in weight loss percent, juice volume and juice percent. Whereas TSS, firmness, juice percent, total sugars and total acidity were decreased as storage prolonged from 56 days to 127 days, except weight loss percent which increased significantly during the same storage periods. The effect of the interaction between KMnO4 and bread yeast levels with storage periods was significant. The interaction between 20g KMnO4 /bag and 56 days storage resulted in the highest fruit firmness, but the best interaction in decreasing weight loss was 10g KMnO4 /bag with 56 days storage. On the other hand, the interaction between 20g KMnO4 /bag with 127 days storage gave the lowest acidity. Concerning the increasing of ascorbic acid in fruits, the best interaction was 20g KMnO4 /bag with 127 days storage

A SCHEME OF KNOWLEDGE MANAGEMENT STRATEGIES AND ORGANIZATIONAL PERFORMANCE IN ABU DHABI GOVERNMENT ENTITIES

The purpose of this study is to determine the determinants of knowledge management strategies towards organizational performance in Abu Dhabi government entities. After proposing a testable conceptual framework, this study initiated to propose the research framework by an Exploratory Factor Analysis (EFA), where the items of the further research can have some light to move forward. The sample size was 331 for this study and simple random sampling was employed. For this research, the findings show that, Knowledge Management Structure, Knowledge Management Practice, Knowledge and Management Strategy are the important aspects of Organizational Performance in Abu Dhabi government entities. This research has contributed to the existing knowledge by proposing an empirically validated research model which could be an important execution tool for the success of government entities performance.  Article visualizations

STRATEGIC MANAGEMENT AND THE HEALTHCARE SECTOR IN ABU DHABI (SEHA): A THEORETICAL REVIEW

The purpose of this study is to determine the strategic management and the healthcare sector in Abu Dhabi (SEHA) from the theoretical perspective. Although an empirical research is a way of gaining knowledge by means of direct and indirect observation or experience, however, this research will add on the understandings from the view of theoretical review as well. To execute that, a number of theories put forward, upon which the theoretical framework is premised; these are: the theoretical model of strategic planning in healthcare organizations, strategy content in strategic planning model (SPM), environment(s) in strategic planning model, mission in strategic planning model, human resources management (HRM) in strategic planning model etc. The theoretical review revealed that the available limited research lacks validation through empirical research. This has brought about new knowledge to the researchers which may be tested or contested due to country conditions being different to that of Abu Dhabi or laps of time has altered the findings as of a future date. Future researchers could identify emerging variables that may alter the significance of variables tested which may lead to completely new discoveries as to what contributes to the success of healthcare.  Article visualizations

STRATEGIC MANAGEMENT PLANNING AND THE DEVELOPMENT OF HEALTHCARE SECTOR IN ABU DHABI: STRUCTURAL EQUATION MODELING (SEM) APPROACH

The purpose of this study is to determine the impact of strategic management planning in the development of healthcare sector in Abu Dhabi. The hypothesized research model and the key relationships were considered for the achieving the research objectives. In this proposed model, altogether seven hypotheses are developed to test the relationships among the various variables. To test the specific relationship of hypothesis, quantitative data must be collected to analyze the relationship and finally the result could be generalized on the population and select a sufficient sample size which represents the whole population that is what this research employed. In this study, the target population is the healthcare employees in Abu Dhabi. For this study, the sample size was 326 respondents from the healthcare sector in Abu Dhabi. Results revealed that healthcare service and facility is positively and significantly correlated with development of healthcare sector, as well as healthcare service and facility is positively and significantly correlated with financial and operational efficiency. Result also showed that financial and operational efficiency is positively and significantly correlated with development of healthcare sector, and healthcare service and facility is positively and significantly related with strategic management planning. However, strategic management planning does not a positive and significant influence on development of healthcare sector. The results of this study provide evidence that increased healthcare service and facility is associated with increased development of healthcare sector. This research has contributed to the existing knowledge by providing an empirically tested/validated model which could be used to predict a material portion of the variables that contributes to the eventual success of the healthcare.  Article visualizations

Precision Astrometry of a Sample of Speckle Binaries and Multiples with the Adaptive Optics Facilities at the Hale and Keck II Telescopes

Using the adaptive optics facilities at the 200-in Hale and 10-m Keck II, we observed in the near infrared a sample of 12 binary and multiple stars and one open cluster. We used the near diffraction limited images of these systems to measure the relative separations and position angles between their components. In this paper, we investigate and correct for the influence of the differential chromatic refraction and chip distortions on our relative astrometric measurements. Over one night, we achieve an astrometric precision typically well below 1 miliarcsecond and occasionally as small as 40 microarcseconds. Such a precision is in principle sufficient to astrometrically detect planetary mass objects around the components of nearby binary and multiple stars. Since we have not had sufficiently large data sets for the observed sample of stars to detect planets, we provide the limits to planetary mass objects based on the obtained astrometric precision.Comment: 18 pages, 8 figures, 9 tables, to appear in MNRA

Lower urinary tract dysfunction in diabetes mellitus’ patients

Diabetes mellitus (DM) - a chronic disease characterized by profound disturbances of carbohydrate, fat, protein and electrolyte metabolism. The leading players in the pathogenesis of complications diabetes is diabetic angiopathy, leading to disruption of blood supply of organs and tissues. Micturition disorders in diabetes, or diabetic cystopathy, watch, according to various estimates. 43-87% of patients with insulin-dependent diabetes and in 25-30% of patients receiving oral hypoglycemic therapy. Clinical manifestations of diabetic cystopathy varied and depend on type of diabetes, its limitations, the severity, the degree of compensation and the presence of concomitant diseases. Common clinical symptom in diabetes is polyuria. It is still not developed an algorithm for examination of such patients are not offered an optimal scheme of treatment, and no clear relationship between the severity of disorders of urination in patients with diabetes and the presence of their sexual dysfunction.Сахарный диабет (СД) - хроническое заболевание, характеризующееся глубокими нарушениями углеводного, жирового, белкового и электролитного обменов. Ведущим звеном в патогенезе осложнений СД является диабетическая ангиопатия, приводящая к нарушению кровоснабжения органов и тканей. Расстройства мочеиспускания при СД, или диабетическую цистопатию, наблюдают, по разным оценкам, у 43-87% больных инсулинозависимым диабетом и у 25-30% больных, получающих пероральную сахароснижающую терапию. Клинические проявления диабетической цистопатии разнообразны и зависят типа СД, его давности, тяжести, степени компенсации и наличия сопутствующих заболеваний. Общим клиническим признаком при СД является полиурия. До сих пор не разработан алгоритм обследования таких больных, не предложена оптимальная схема их лечения, а также не ясна связь между выраженностью нарушений мочеиспускания у больных с СД и наличием у них сексуальных дисфункций