532 research outputs found
The Birds of the Highlands of South-West Saudi Arabia and adjacent parts of the Tihama: July 2010
The objective of the survey was to compare habitats and bird life in the Asir region, particularly Jebal Souda and the Raydah escarpment protected area of the Saudi Wildlife Commission, and adjacent regions of the tihama, with those observed in July 1987 (Jennings, et al., 1988). The two surveys were approximately the same length and equal amounts of time were spent in the highlands and on the tihama. A number of walked censuses were carried out during 2010 on Jebal Souda, using the same methodology as walked censuses in 1987, and the results are compared. Broadly speaking the comparison of censuses revealed that in 2010 there were less birds and reduced diversity on the Jebal Souda plateau, compared to 1987. However in the Raydah reserve the estimates of breeding bird populations compiled in the mid 1990s was little changed as far as could be assessed in 2010. The highland region of south-west Saudi Arabia, especially Jebal Souda, has been much developed since the 1987 survey and is now an important internal recreation and resort area. This has lead to a reduction in the region’s importance for terraced agriculture. These changes may be a contributing factor to changes in bird numbers on the plateau. Subsidiary tasks that arose during the 2010 survey were to help locate satellite tagged Bald Ibises Geronticus eremita from Syria which were transiting Saudi Arabia at the time. Secondly to search for the Asir subspecies of the Eurasian Magpie Pica pica asirensis, which is endemic to the south-west Saudi Arabia highlands, and is reported to be in decline. A separate team searching for the Bald Ibis located some individuals and one was found dead. Few Magpies were located and it seems clear that this very scarce bird has declined further in numbers in recent years. A number of interesting records of birds were obtained, especially on the tihama, where two new birds for Saudi Arabia were observed, Black-headed Heron Ardea melanocephala and Painted Snipe Rostratula benghalensis and one species, Glossy Ibis Plegadis falcinellus was found breeding for the first time in the Arabian Peninsula. Some recommendations for the protection and management of the Raydah reserve are presented. A systematic list of all birds seen is provided
Antibiotic Resistance of Vibrio cholerae Isolates from Kashan, Iran
Aims: Cholera is an acute diarrheal disease that can lead to severe dehydration and death. Antibiotic resistance is a big challenge in infective disease like Cholera. The present study aimed to understand the characteristics and trends of antibiotic resistance of V. cholerae isolations in and around Kashan, Iran. Instrument & Methods: In this descriptive cross-sectional study, samples were gathered using census method from 1998 to 2013 in Kashan, Iran. 1132 fecal samples of patients with acute diarrhea and 237 samples of suspected water samples were taken. The serotypes and biotypes were determined by an enzymatic method. Antibiotic susceptibility test was performed by using Disk Diffusion Method. Data were analyzed using SPSS 23 software. Fisher-exact and Chi-square tests were used to compare the statistical parameters. Findings: 96 fecal samples (8.5) and 18 water samples (7.6) were positive for Vibrio cholerae. Non-agglutinating (Nag) isolates (75.4) were more common than serotype Inaba (13.2) and Ogawa (11.4). Nag serotypes were mostly resistant to cefixime (44) and ampicillin (33). In contaminated water samples also the most frequent cases were Nag serotype (50). Nag serotype showed 22.2 of resistance to ampicillin and nitrofurantoin. Conclusion: Vibrio cholerae isolates in Kashan, Iran, are highly resistant to antibiotics, especially Nag serotypes
The effect of educational- counseling program on general health of women as caregivers of patient, with Alzheimerdisease
زمینه و هدف: ارائه مراقبت طولانی مدت به بیماران مبتلا به آلزایمر، با افزایش خطرات ابتلا به بیماری جسمی و روانی برای مراقبین همراه است و فقدان تعلیمات لازم نیز مشکلات سلامتی آنها را دو چندان نموده است. این مطالعه با هدف تعیین تاثیر برنامه آموزشی- مشاوره ای بر سلامت عمومی زنان مراقبت کننده از سالمندان مبتلا به آلزایمر انجام شده است. روش بررسی: در این پژوهش تجربی، 150 زن 18 تا 60 ساله که از وابستگان درجه یک سالمندان مبتلا به آلزایمر بوده و مراقبت مستقیم از آنها را به مدت حداقل 6 ماه به عهده داشتند، با روش نمونه گیری آسان انتخاب شدند و پس از انجام پیش آزمون شامل پرسشنامه اطلاعات دموگرافیک و سلامت عمومی گلدبرگ، با روش تصادفی بلوکه شده، به شکل تصادفی در دو گروه آزمون و کنترل قرار گرفتند. گروه آزمون در یک برنامه آموزشی – مشاوره ای شامل یک جلسه بحث گروهی، دریافت یک پمفلت آموزشی و دو مشاوره تلفنی شرکت نمودند. 6 هفته پس از مداخله، پس آزمون برای هر دو گروه انجام گرفت. برای مقایسه متغیرها از آزمون های آماری t زوجی، t مستقل، کای اسکوئر و آنالیز واریانس یک طرفه استفاده شد. یافته ها: نتایج نشان داد که قبل از برنامه آموزشی- مشاوره ای 3/17 از نمونه های مورد پژوهش سلامت عمومی نامطلوب داشتند. پس از انجام برنامه آموزشی- مشاوره ای میانگین سلامت عمومی در گروه آزمون از 3/15±68/39 به 03/10±09/19 تقلیل یافت (001/0
Seroepidemiology of Toxoplasma gondii infection in immunodeficiency patients in Kashan and Qom during 2014-2015
Background: Toxoplasma gondii is an opportunistic parasitic protozoon, which is a causative agent of serious complications such as encephalitis in immunodeficiency patients. Considering insufficient data on toxoplasmosis in these patients, the present study was conducted to determine the seroepidemiology of T. gondii among immunodeficiency patients. Materials and Methods: This cross-sectional study was conducted on cancer, ADIS, hemodialysis and renal transplant patients (case group) and healthy persons (control group) in Kashan and Qom cities. Totally, 317 serum samples were collected from the case group and 120 samples from the control group. The ELISA method was used to determine the anti-T. gondii IgG and IgM antibodies. Results: Totally, 60.3 of the samples from the case and 33.3 from the control groups were positive for anti-T. gondii IgG (P<0.001). In the case group, only 2 persons (0.6) were positive for anti-T. gondii IgM. The anti-T. gondii IgG detected in immunodeficiency patients was 55.2 in Kashan and 68 in Qom, which were higher than in the control group (P<0.001, P<0.006, respectively). The highest prevalence of T. gondii were seen in 40-59 years old (49.8) and illiterate (60) patients. There was a meaningful correlation between toxoplasmosis and blurry vision and dermal rash (P=0.001 and P=0.003, respectively). Conclusion: The prevalence of T. gondii was higher in different immunodeficiency patients compared to healthy persons. Screening examinations were recommended for the diagnosis and treatment of patients to prevent serious side-effects and health education
Magnesium Supplementation and the Effects on Wound Healing and Metabolic Status in Patients with Diabetic Foot Ulcer: a Randomized, Double-Blind, Placebo-Controlled Trial
Hypomagnesemia is associated with the development of neuropathy and abnormal platelet activity, both of which are risk factors for diabetic foot ulcer (DFU). This study was carried out to evaluate the effects of magnesium administration on wound healing and metabolic status in subjects with DFU. This randomized, double-blind, placebo-controlled trial was performed among 70 subjects with grade 3 DFU. Subjects were randomly divided into two groups (35 subjects each group) to receive either 250 mg magnesium oxide supplements or placebo daily for 12 weeks. Pre- and post-intervention wound depth and appearance were scored in accordance with the “Wagner-Meggitt’s” wound assessment tool. Fasting blood samples were taken at baseline and after the 12-week intervention to assess related markers. After the 12-week treatment, compared with the placebo, magnesium supplementation resulted in a significant increase in serum magnesium (+0.3 ± 0.3 vs. −0.1 ± 0.2 mg/dL, P < 0.001) and significant reductions in ulcer length (−1.8 ± 2.0 vs. −0.9 ± 1.1 cm, P = 0.01), width (−1.6 ± 2.0 vs. −0.8 ± 0.9 cm, P = 0.02), and depth (−0.8 ± 0.8 vs. −0.3 ± 0.5 cm, P = 0.003). In addition, significant reductions in fasting plasma glucose (−45.4 ± 82.6 vs. −10.6 ± 53.7 mg/dL, P = 0.04), serum insulin values (−2.4 ± 5.6 vs. +1.5 ± 9.6 μIU/mL, P = 0.04), and HbA1c (−0.7 ± 1.5 vs. −0.1 ± 0.4%, P = 0.03) and a significant rise in the quantitative insulin sensitivity check index (+0.01 ± 0.01 vs. −0.004 ± 0.02, P = 0.01) were seen following supplementation of magnesium compared with the placebo. Additionally, compared with the placebo, taking magnesium resulted in significant decrease in serum high-sensitivity C-reactive protein (hs-CRP) (−19.6 ± 32.5 vs. −4.8 ± 11.2 mg/L, P = 0.01) and significant increase in plasma total antioxidant capacity (TAC) concentrations (+6.4 ± 65.2 vs. −129.9 ± 208.3 mmol/L, P < 0.001). Overall, magnesium supplementation for 12 weeks among subjects with DFU had beneficial effects on parameters of ulcer size, glucose metabolism, serum hs-CRP, and plasma TAC levels
Leishmania mexicana em Didelphis marsupialis aurita no Estado de São Paulo, Brasil
Foi identificada pela primeira vez a presença de L. mexicana em Didelphis marsupialis aurita, no Estado de São Paulo Município de Conchas, através de caracterização bioquímica
Protection and disinfection policies against SARS-CoV-2 (COVID-19)
In late December 2019, reports from China of the incidence of pneumonia with unknown etiology were sent to the World Health Organization (WHO). Shortly afterwards, the cause of this disease was identified as the novel beta-coronavirus, SARS-CoV-2, and its genetic sequence was published on January 12, 2020. Human-to-human transmission via respiratory droplets and contact with aerosol infected surfaces are the major ways of transmitting this virus. Here we attempted to collect information on virus stability in the air and on surfaces and ways of preventing of SARS-CoV-2 spreading
Baryons with Two Heavy Quarks as Solitons
Using the chiral soliton model and heavy quark symmetry we study baryons
containing two heavy quarks. If there exists a stable (under strong
interactions) meson consisting of two heavy quarks and two light ones, then we
find that there always exists a state of this meson bound to a chiral soliton
and to a chiral anti-soliton, corresponding to a two heavy quark baryon and a
baryon containing two heavy anti-quarks and five light quarks, or a
``heptaquark".Comment: 7 pages and 2 postscript figures appended, LaTex, UCI-TR 94-3
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