Missing energies at pair creation

Wilson cloud chamber measurements of the separated spectra of positrons and electrons produced by gamma quanta of 6.14 MeV differ considerably from the theoretically predicted spectra by BETHE and HEITLER, but are in good agreement with those of a modified theory of pair creation

Estimation of post-harvest losses of Manfalouty pomegranate fruits

Weight loss considered one of the main causes of quality loss in pomegranate fruits during chain marketing. Therefore, this study was conducted on Manfalouty pomegranate (Punica granatum L.) in a private orchard in El Badary, Assiut Governorate, Egypt in 2017 and 2018 to define the various causes of losses during chain handing and estimate it. The fruits harvested at three periods early (September) mid (October) and late season (November). The total losses at harvest were 5.94%, 9.30% and 23.50% for early, mid and late season, respectively. The main cause of losses is due to cracked and infected pests. The total loss of fruits during chain marketing was highest in retail market in comparison with wholesale during early, mid and late season. The main causes of losses due to weight loss and shrinkage fruits. According to data dealing with storage pomegranate fruits at 5±1°C and relative humidity 85-90%, the highest fruit losses found in the third month and this losses due to fruit weight loss and internal chilling injury (brown discoloration) so the storage life of fruit should be two months. DOI: http://dx.doi.org/10.5281/zenodo.405122

The Square Root Problem and Subnormal Aluthge Transforms of Recursively Generated Weighted Shifts

For recursively generated shifts, we provide definitive answers to two outstanding problems in the theory of unilateral weighted shifts: the Subnormality Problem ({\bf SP}) (related to the Aluthge transform) and the Square Root Problem ({\bf SRP}) (which deals with Berger measures of subnormal shifts). We use the Mellin Transform and the theory of exponential polynomials to establish that ({\bf SP}) and ({\bf SRP}) are equivalent if and only if a natural functional equation holds for the canonically associated Mellin transform. For $p$--atomic measures with $p \le 6$, our main result provides a new and simple proof of the above-mentioned equivalence. Subsequently, we obtain an example of a $7$--atomic measure for which the equivalence fails. This provides a negative answer to a problem posed by G.R. Exner in 2009, and to a recent conjecture formulated by R.E. Curto et al in 2019

POSSIBLE PROTECTIVE ROLE OF SODIUM SALICYLATE NANOEMULSION AND GINGER ON CISPLATIN‑INDUCED HEPATOTOXICITY IN RATS (BIOCHEMICAL AND HISTOPATHOLOGICAL STUDY)

Objective: To describe the preparation and characterization of nanoemulsion of sodium salicylate loaded butane tetracarboxylic acid (Bt-Sc-NPs). It also investigates the possible protective effects of Bt-Sc-NPs and\or medicinal plant ginger to evaluate the changes of liver functions, oxidative stress and histopathological investigations against cisplatin-induced hepatotoxicity. Methods: Serum was used to determine alanine aminotransferase (ALT), aspartate aminotransferase (AST), δ-glutamyl transferase (δGT), serum human laminin (LN) and tissue inhibitors of metalloproteinase1 (TIMP1). Liver tissue samples collected from the rats were used for the measurement of malondialdehyde (MDA), nitric oxide (NO) and paraoxonase 1 (PON1). Results: The beneficial effects of Bt-Sc-NPs with its anti-inflammatory effect and the medicinal ginger with its antioxidant effect were observed. Injection of rats with cisplatin significantly increased serum ALT, AST, ɤGT, TIMP1 and LN. It also increased cisplatin-induced oxidative stress by a significant elevation in liver MDA, NO content; however, a significant decrease of PON1 content. While protection with Bt-Sc-NPs or ginger significantly improved these parameters. In addition, combination of both Bt-Sc-NPs and ginger significantly induced a decrease in serum ALT, AST, ɤGT, TIMP1 and LN. It also reduced cisplatin-induced oxidative stress by the significant reduction in liver MDA, NO content and elevation of PON1 content much more than protection with Bt-Sc-NPs or ginger alone. Conclusion: Bt-Sc-NPs were synthesized using nanoemulsion with the help of homogenization and ultra-sonication waves. Combination with both of Bt-Sc-NPs and ginger showed a hepatoprotective role in ameliorating cisplatin‑induced hepatotoxicity due to their anti-inflammatory and antioxidant effects

Assessment of anti-cyclic citrullinated peptide in psoriatic arthritis

<p>Abstract</p> <p>Background</p> <p>Anti-cyclic citrullinated peptides (anti-CCP) are highly specific diagnostic and prognostic markers for rheumatoid arthritis (RA). They have been also found in psoriatic arthritis (PsA), with controversies as regards clinical and radiological associations. The current study assessed anti-CCP in PsA and determined its clinical and radiological associations.</p> <p>Methods</p> <p>Four groups contributed to this study. 40 PsA, 40 psoriasis without arthritis, 40 RA and 40 healthy controls. They were tested for anti-CCP. Clinical and radiological data were collected and statistically compared between anti-CCP-positive and -negative PsA patients.</p> <p>Results</p> <p>Seven PsA (17.5%) and 34 RA (85%) were seropositive for anti-CCP. Patients of other groups were anti-CCP-negative. Regarding anti-CCP concentrations, highly significant difference existed between different groups and between anti-CCP-positive and -negative PsA. Significantly higher numbers of involved, swollen and tender joints, deformities and functional impairment of peripheral joints and radiological changes were found in anti-CCP-positive PsA.</p> <p>Conclusion</p> <p>Anti-CCP may be found in PsA and are associated with higher number of involved, swollen and tender joints, with deformities and functional impairment of peripheral joints and with erosive arthritis.</p

Tracking Water Quality from Source to Home: A showed Case of El Gorashi Locality, Gezira State, Sudan

Water quality is recognized one of the greatest challenges to human life because water may become unsafe at any point between collection and consumption.&nbsp; This study was conducted in Elgorashi locality, Gezira State Sudan to investigate water sources physically and biologically. A number of 70 water samples were taken from various sources which include; irrigation canals, Haffir, Haffir Exit Basin (HEB), Slow Sand Filters (SSF), Clean Water Basin (CLB), homes taps and homes storage containers. The samples were collected from Elgorashi city, Galoka, Geneda, Maatoug and Hillat Babiker villages.&nbsp; The results were compared to WHO risk category. Statistical results revealed that physically, 86% of water sources were suitable for human consumption. Biological analysis showed 73% of water sources were polluted with bacteria. It has been found that (19/70) 27.14% of all water sources were safe, (28/70) 40% at low-risk, (14/70) 20% at intermediate risk and (9/70) 12.86% were at high risk. A long the water supply network, the main water sources of irrigation canals and Haffirs were unsafe. At home level, 70% of taps water were classified under low risk category and 55% of storage containers showed high risk sources. These results indicate leakage at the water distribution network. The study recommends immediate disinfection intervention at all sources to protect community from illness associated with poor water quality. جودة الماء تعتبر من اهم التحديات لصحة الانسان&nbsp; لان الماء قد يتعرض للتلوث في اي موقع&nbsp; بين المصدر والمستهلك.&nbsp; في هذا البحث تم اختبار نوعية الماء الطبيعية والبيولوجية في مدينة القرشي – ولاية الجزيرة في السودان.&nbsp; تم&nbsp; جمع 70 عينة ماء من مصادر&nbsp; مختلفة شملت&nbsp; قنوات الري والحفائر واحواض تجميع ماء الحفير واحواض تنقية الماء وحنفيات المنازل وادوات حفظ الماء المنزلية. تم جمع العينات من مدينة القرشي وابوقوتة وقرية جنيدا ومعتوق وحلة بابكر. تمت مقارنة النتائج مع مقاييس منظمة الصحة العالمية. اظهرت&nbsp; نتائج التحليل الطبيعى ان 86% من المصادر تحتوي على ماء صالح لاستخدام الانسان. التحليل البكتيرى للماء اظهر ان 73% من المصادر ملوثة بالبكتريا. وجد ان نسبة 27.14% من&nbsp; جملة المصادر تحتوي على ماء نظيف و 40% من المصادر تحتوي على ماء ذو خطورة منخفضة و 20% من المصادر تحتوى على ماء ذو خطورة متوسطة و12.86% من المصادر مياهها عالية الخطورة. على طول شبكة توزيع الماء تعتبر قنوات الري والحفائر مصادر ذات&nbsp; ماء غير امن. 70% من حنفيات المنازل تحتوي على ماء ذو خطورة منخفضة و 55% من اواني حقظ الماء المنزلية تعتبر مياهها عالية الخطورة. دلت النتائج على وجود كسورات في خطوط توزيع الماء واوصت الدراسة على تطهير كل المصادر لحماية المجتمع من الامراض المرتبطة بالماء. &nbsp