1,351 research outputs found

    Llet de cabra verge

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    Fa anys que l'enginyeria ramadera indueix la lactació mitjançant injecció directa d'estrogen i progesterona. Un nou avanç podria millorar, en un futur, l'efectivitat d'aquest tractament en cabres lleteres gràcies a la reserpina, un agent inductor de la prolactina.Hace años que la ingeniería ganadera induce la lactación mediante inyección directa de estrógeno y progesterona. Un nuevo avance podría mejorar en un futuro la efectividad de este tratamiento en cabras lecheras gracias a la reserpina, un agente inductor de la prolactina.For many years dairy scientists have induced lactation by means of direct injection of estrogen and progesterone. A new advance allows to improve the effectiveness of this treatment in dairy goats thanks to reserpine, a prolactin releasing agent

    Valley of the Wolves as Representative of Turkish Popular Attitudes toward Iraq

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    Abstract In 2006, the Turkish film, Valley of the Wolves (Kurtlar Vadisi-Irak) (Serdar Akar, 2006), was released to audiences in Turkey and Europe. Costing $10 million, it was the most costly production in the history of Turkish cinema, breaking all box office records in the country. A fantastical account of a Turkish victory over a fictional US invasion of the country, Valley of the Wolves has been interpreted as a reaction to the ‘Sack Incident’ (‘çuval olayı’) of July 2003, in which eleven Turkish soldiers were hooded and arrested in northern Iraq shortly after the United States invasion. The film’s title hence refers to a dark and dangerous place where howling and vicious ‘wolves’—namely Americans and Kurds—are gathered. This paper argues that Valley of the Wolves confirms a reemergence of 1960s Turkish industry (Yeşilçam) films which emphasized the historical conflict between Western and Islamic values. It discusses the extent to which Valley of the Wolves reflects popular Turkish attitudes toward the US war on Iraq, and it analyzes the film’s projection of Turkish humiliation, anger, and frustration following the Sack Incident. The paper also addresses how Valley of the Wolves engages US–Turkish relations and Turkish concerns over current Iraq-related politics, especially the US–Kurdish alliance, the establishment of an independent Kurdistan, Turkmen and the issue of Kirkuk, US violations of international law in Iraq, and the conflict between Islam and ChristianityValley of the Wolves as Representative of Turkish Popular Attitudes toward Ira

    Study of performance of existing pond sand filters in different parts of Bangladesh

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    Pond Sand Filter (PSF), a small scale filtering unit has been widely used in the saline problem areas of Bangladesh. Recently it has also been used in arsenic problem areas of the country. In this study the performance of the existing 61 nos. PSF in 13 upazilas with arsenic and saline problem areas were investigated. A survey was carried out among the beneficiaries to get their opinion towards the existing PSFs and evaluate the social aspects of PSFs. The study also compared the PSFs models designed by DPHE, NGO Forum and Danida. The study examined the effectiveness of various treatment unit of three model PSFs. Turbidity, colour, faecal coliform were tested for the raw and treated water at various steps of the treatment process. Turbidity removal of DPHE, NGO forum and Danida Model was 93.19%, 87.5% and 92.25% respectively. Only 6% of PSF treated water found coliform-free. Performance assessment of PSFs were done in terms of quality of filtered water, ease of operation and maintenance, production capacity, efficiency of filter and acceptability

    Muslim Responses to HIV/AIDS

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    Muslim communities have never responded to the HIV/AIDS pandemic in a homogenous way. There have always been differences of opinion and approaches to dealing with HIV/AIDS. The following analyses Muslim attitudes towards fellow Muslims living with HIV/AIDS by comparing the approaches of two Muslim AIDS prevention and support groups in South Africa

    Some water quality parameters and zooplankton periodicity of the Baga in-take channel of Lake Chad

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    Assessment of some water quality parameters and zooplankton periodicity of the Baga in-take channel of Lake Chad was reviewed. Seven different species of zooplankton were identified at the two sampling stations of the channel. Each identified zooplankton species were grouped according to its major group of Copepods, Cladocera and Rotifera. The copepods dominated the total population with the highest number of occurrence as Cyc1opoids species. There was a mark evidence of organic manure nutrient on total zooplankton population. Surface water temperature in station 1 ranged from 22.8-28. 1degreesC the pH ranged from 6.10 - 7.12 while D.O ranges from 4.00mg/1 -6.20 mg/I. At station 2, temp ranged from 22.0-28.1 OdegreesC, pH ranged 7.1 - 8.6 while D.O. ranged from 4.00mg/1 - 6.20mg/1

    Management of Small Aortic Root during Aortic Valve Replacement

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    Background: Concomitant aortic root enlargement (ARE) increases the risk of aortic valve replacement (AVR). The objectives of this study were to identify the patients who needed aortic root enlargement and compare the outcomes and the risk of adding ARE to AVR. Methods: We retrospectively reviewed 62 patients who underwent isolated mechanical aortic valve replacement between 2017 and 2019. We divided the patients into two groups: group A included patients with small aortic root who had AVR with one of the different surgical strategies for small aortic annulus (n= 32) and group B, which included patients with a normal aortic annulus and underwent conventional AVR (n= 30). Group A was further sub-divided based on the surgical strategy into 4 categories; patients who had supra-annular implantation of size 19 mm St. Jude prosthetic valve (n= 11; 34.4%), Nicks procedure (n= 13 40.6%), Manougian procedure (n= 4; 12.5%), Konno procedure (n= 4; 12.5%).  Results: Group A patients were significantly younger (26.16 ± 11.49 vs. 34.63 ± 8.9 years; p< 0.001) and had lower body weight (55.09 ± 21.41 vs. 69.80 ± 19.20; p= 0.01). Group A had significantly smaller valves (p = 0.03), and total cardiopulmonary bypass (148.65 ± 44.09 vs. 97.46 ± 20.90 minutes; p<0.001) and aortic cross-clamp times (118.13 ± 36.70 vs. 78.06 ± 16.01 minutes; p < 0.001) were significantly longer in group A. There was no significant difference in operative complications between groups. Among patients with small aortic root; Konno procedure had the longest bypass time (236.3 ± 19.70 minutes; p<0.001); cross-clamp time (192.5 ± 22.2 minutes; p <0.001); mechanical ventilation (4.75 ± 0.50 hours; p<0.001) and intensive care unit stay (6.50 ± 0.57 days; p <0.001). Patients with supra-annular implantation of the St. Jude valve had a significantly higher postoperative pressure gradient (14.64 ± 6.84 mmHg; p= 0.02). No difference in procedure complications was observed among aortic root enlargement procedures. Conclusion: Patients who had aortic root enlargement procedure were younger, with lower weight and body surface area. Surgical procedures used to manage small aortic root had comparable early results, and no technique was superior to the others

    Morphological and biochemical variation in Sea buckthorn Hippophae rhamnoides ssp. turkestanica, a multipurpose plant for fragile mountains of Pakistan

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    Sea buckthorn (Hippophae rhamnoides ssp. turkestanica) a member of family Elaeagnaceae, is a very important multipurpose plant in the northern areas of Pakistan. It is an ideal plant for preventing soil erosion and land reclamation, can withstand extremes of temperature ranging from −43°C to 55°C and grows well under drought conditions and variable soil pH. The fruit is rich in nutrients and medicinal compounds such as vitamins, carotene, flavonoids, essential oil, carbohydrates, organic acids, amino acids, and soluble sugars. The plants are also important as fuel wood, fencing, fodder, soil erosion control, to make soil fertile by nitrogen fixation in roots and for the purpose of shelterbelts. In order to compare various populations of Sea buckthorn for morphological and biochemical composition, ten populations from different areas of northern Pakistan were compared using plant and fruit characters. The purpose of the investigation was to identify the variable populations for different valuable characteristics to develop improved varieties for commercial cultivation and easy fruit harvesting. The comparison indicated a significant amount of variability on morphological and biochemical basis. The variability will be utilised to develop commercial varieties of the plant utilising the conventional techniques of selection and hybridisation for economic activities on degraded land of mountainous regions of Pakistan

    Approximate Solution of Nonlinear fractional Integro-Di erential Equations By He's Homotopy Perturbation Method And The Modi cation of He's Variational Iteration Method

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    In this paper, we compare the modi cation of He's variational iteration method (MVIM), and He's homotopy perturbation method (HPM), in order to obtain the approximate solution of nonlinear frac- tional integro-di erential equations of Volterra and Fredholm integro-di erential equations, we present some examples to nd out accuracy of the methods. keywords: Fractional integro-di erential equations, Caputo derivative, modi cation of He's variational iteration method, homotopy perturbation metho

    Preparation Iraqi Attapulgite Clay Using Wet Sieving Process to Be Suitable for Oil Wells Drilling Fluid

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    الغربلة الرطبة هي احدى عمليات الفصل الفعالة للمعادن الطينية، في هذا العمل، استخدمت عملية الغربلة الرطبة لفصل طين الأتبلغايت عن الكوارتز الموجود في التربة العراقية ليكون مناسب للأستخدام في سوائل حفر الآبار النفطية.  تم دراسة تأثير الظروف التشغيلية لعملية الغربلة الرطبة (سرعة الخلط، زمن الخلط وقياس فتحة الغربيل) على كلا من الخواص الكمية والنوعية لطين الأتبلغايت.  في عملية الطحن الرطب، استخدمت سرع خلط مختلفة (٨٥٠   ,١٣٠٠, ١٨٠٠) دورة/دقيقة في ازمان خلط مختلفة (٥, ١٥, ٢٠) دقيقة. بلأضافة الى ذلك، ثلاث غرابيل بقياسات مختلفة (٣٨,٢٠, ٧٥) مايكرومتر استخدمت في عملية الغربلة الرطبة. حيود الأشعة السينية ومساحة الأنبعاث- المجهر الألكتروني الماسح استخدمت لغرض تشخيص الخواص المعدنية والسطحية لطين الأتبلغايت. الخواص الريولوجية وانتاجية طين الأتبلغايت تم قياسها في الماء العذب والماء المالح بأستخدام مقياس اللزوجة ماركة (Ofite). انتاجية عملية الغربلة الرطبة قيست بأخذ الفرق بوزن الطين قبل عملية الغربلة وبعد عملية التنقية. اظهر النتائج بأن سرعة الخلط وزمن الخلط لهما تأثير كبير في زيادة انتاجية العملية، بحيث اعلى انتاجية للعملية تم الحصول عليها عند سرعة خلط ١٨٠٠ دورة/دقيقة لمدة ٢٠ دقيقة بأستخدام غربيل بحجم فتحة ٧٥ مايكرومتر. كذلك اظهرت النتائج ان لحجم فتحة الغربيل تناسب طردي مع انتاجية العملية، بينما لها تناسب عكسي مع مستو تشتيت طين الأتبلغايت. على اي حال، أفضل قيم لزوجة ظاهرية كانت (١٥.٨٣و١٢.٠٦سانتي بويز) في الماء العذب والماء المالح على التوالي. اعلى انتاجية للطين كانت (٩٤.٢١و٨١.٧١ برميل/طن) في الماء العذب والماء المالح على التوالي    تم الحصول عليها بأستخدا غربيل ذو حجم فتحة٣٨مايكرومتر. اخير الظروف التشغيلية لعملية الغربلة الرطبة هي سرعة خلط ١٨٠٠ دورة/دقيقة وزمن خلط ٢٠ دقيقة وغبيل ذو حجم فتحة ٣٨ مايكرومتر.Wet sieving is one of active separation process for clay mineral. In this work, wet sieving was applied to separate attapulgite clay from quartz for Iraqi formation to make it suitable in drilling fluid preparation. The Influence of wet sieving conditions (stirring speed, stirring time and mesh size) on quality and quantity properties of attapulgite clay were investigated. Three stirring speeds (850, 1300 and 1800 rpm) at three stirring times (5, 15 and 20min.) were tested in wet milling process, in addition to three mesh sizes (20,38 and 75µm) were applied in wet sieving process. XRD and FE-SEM were used for mineralogical and morphological characterizing for attapulgite clay. Rheological properties and yield of clay were tested at fresh and salt water using ofite viscometer. Yield of the process was measured by weight differences of clay before wet sieving and after purification process. The results showed that the stirring speed and stirring time had great action on raising the yield of process, where higher yields of process was obtained at 1800 rpm stirring speed for 20 min. at mesh size 75 µm. the results also showed, the mesh size had Direct proportion with a yield of process, while it had a revers fit with dispersion of attapulgite clay. However, best apparent viscosity (15.83 and12.06 Cp) for fresh and salt water respectively, and higher yield of clay (94.21and 81.71 barrel/ton) for fresh and salt water were gained at sieving with 38 µm mesh size. Final result, the best wet sieving condition were stirring speed1800 rpm for 20 min. at 38 µm mesh size

    Water resources development in relation to irrigation in Nigeria

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    Water resources development in relation to irrigation in Nigeri
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