A Study for the Influence of Change in Ratio of Cross Sectional Area to Constant Perimeter of Thermosyphon's Condenser

This experimental study investigated the change in cross-sectional area (csa) of thermosyphon's condenser to it's a constant perimeter (RAP) and effect of that at the thermal performance. Geometries shapes deform from circular to elliptical and flat to make a change in csa at a same perimeter of all geometries shapes where a different value of RAP are got. At each RAP a different rate of heat input in evaporator anddifferent filling ratio of working fluid (distill water) are applied. Threshold angle (working angle) where the condensate of distilled water vapor begin to return to evaporator, this angle are examined with the horizontal level for three geometries shapes (three RAP). The results indicated that the flat two phase closed thermosyphon( FTPCT)(low RAP value) and elliptical two phase closed thermosyphon (ETPCT) had a higher and more stable heat transfer coefficient h (condenser air side) with the high and mid filling ratio from than of the circular twophase closed thermosyphon( CTPCT). That refer to more useful length of condenser to absorb heat from evaporator and prevent it from causing a rise in temperature. The high filling ratio with low rate of heat level in evaporator lead to unuseful area in thermosyphon's condenser and lowering its pressure, while low filling ratio with highrate of heat caused a chaotic flow inside TPCT and rising the evaporator and condenser temperatures

Solid-pseudopapillary tumor of the pancreas: MR imaging findings in 21 patients.

PURPOSE: Solid-pseudopapillary tumor (SPT) of the pancreas is a rare, low-grade malignancy, which mostly occurs in adolescent and young adult females. The goal of this study was to retrospectively analyze the magnetic resonance (MR) imaging presentation of SPT of the pancreas. METHODS: We retrospectively reviewed the preoperative MR imaging examinations and the medical, surgical and histopathological records of 21 patients who underwent surgery for SPT of the pancreas. MR imaging included T1-weighted, T2-weighted, and gadolinium chelate-enhanced MR imaging. In addition, 10 patients had diffusion-weighted (DW) MR imaging. MR examinations were retrospectively reviewed for location, size, morphological features and signal intensity of the tumors. RESULTS: Nineteen women and 2 men (median age, 23 years; range, 14-59) were included. Seven patients (7/21; 33%) presented with abdominal symptoms. The median largest tumor diameter was 53mm (range, 32-141 mm). SPTs were located in the pancreatic head, body, and tail in 9 (9/21; 43%), 5 (5/21; 24%) and 7 (7/21, 33%) patients, respectively. All patients (21/21; 100%) had a single SPT. SPTs were more frequently oval (12/21; 57%), predominantly solid (12/21; 57%), fully encapsulated (16/21; 76%), larger than 30 mm (21/21; 100%), hypointense on T1-weighted MR images (21/21, 100%), hyperintense on T2-weighted MR images (21/21; 100%) and with an enhancing capsule after gadolinium-chelate administration (21/21; 100%). CONCLUSIONS: There is trend of appearance for SPT of the pancreas on MR imaging but that variations may be observed in a number of cases. SPT uniformly presents as a single, well-demarcated and encapsulated pancreatic mass

Young connected migrants and non-normative European family life: exploring affective human rightclaims of young e-diasporas

In the face of the contemporary so-called “European refugee crisis,”’ the dichotomies of bodies that are naturalized into technology usage and the bodies that remain alienated from it betray the geographic, racial, and gendered discriminations that digital technologies, despite their claims at neutrality and flatness, continue to espouse. This article argues that “young electronic diasporas” (ye-diasporas) (Donà, 2014) present us with an unique view on how Europe is reimagined from below, as people stake out a living across geographies. The main premise is that young connected migrants’ crossborder practices shows they ‘do family’ in a way that does not align with the universal European, normative expectations of European family life. The author draws on three symptomatic accounts of young connected migrants that are variably situated geo-politically: 1) Moroccan-Dutch youth in the Netherlands; 2) stranded Somalis awaiting family reunification in Addis Ababa, Ethiopia; and, 3) working, middle, and upper-class young people of various ethnic and class backgrounds living in London. Narratives shared by members of all three groups indicate meta-categories of the ‘migrant,’ ‘user,’ and ‘e-diaspora’ urgently need to be de-flattened. To do this de-flattening work, new links between migrant studies, feminist and postcolonial theory and digital cultures are forged. In an era of increasing digital connectivity and mobility, transnational families are far from deterritorialized – boundaries and insurmountable distances are often forcibly and painfully felt

Posmodernisme Bahaya dan Harapan Bagi Islam

298 hlm,; 24 cm

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Comparison between Rowatinex and Tamsulosin as a Medical Expulsion Therapy for Ureteral Stone

The objective of this study is to evaluate the efficacy and safety of rowatinex and tamsulosin in the treatment of patients with ureteric stone. Forty patients with ureteric stone ranged (4- 12) mm, were included in this study. They were randomized into two groups where the first group includes twenty patients treated with Rowatinex three times daily (Group 1), and the second group includes twenty patients treated with tamsulosin 0.4mg/day (Group 2). All patients were randomly assigned to receive the designed standard medical therapy for a maximum of 3 weeks. Each group was given an antibiotic as prophylaxis and an injectable non-steroidal anti-inflammatory drug used on demand. At the outpatient clinic all subjects were assessed by CT-scan at baseline and evaluated every 7 days by physical examination, plain abdominal X-ray (KUB), and abdominal ultrasonography. Data were analyzed by using Student t-test method to compare the results; differences in the success rate between treatments were compared with the chi-square test for 2× 2 tables. The results showed that tamsulosin significantly increases the expulsion rate, and reduce expulsion time of ureteric stone when compared with rowatinex group. Tamsulosin results in a better control of renal colic pain, and decreases in endoscopic procedures performed to remove the stone.  Key words: Ureteric stone, Tamsulosin, Rowatinex, Medical expulsion therapy