591 research outputs found

    Rapid screening of β-Globin gene mutations by Real-Time PCR in Egyptian thalassemic children

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    Thalassemia is one of the most common genetic disorders in Egypt. With the total population of 70 million, there are approximately 600,000 affected individuals and more than 20 million thalassemia carriers. Thalassemia is therefore one of the major health problems in Egypt. B-Thalassemias are priority genetic diseases for prevention programs. Rapid genotype characterization is fundamental in the diagnostic laboratory, especially when offering prenatal diagnosis for carrier couples. Introduction of the real time PCR has made a revolution in the time taken for the PCR reactions. We present a method for the diagnosis of the common mutations of the B-thalassemia in Egyptian children & families. The procedure depends on the real-time PCR using specific fluorescently labeled hybridization probes. The melting temperature for each of the specific probes obtained after the PCR reaction permits the identification of the specific mutation. Genotyping of 20 thalassemic children attending the hematology clinic of the children specialized hospital and 10 controls was done using Real-time PCR and the conventional Amplification Refractory Mutation System (ARMS) technique. Analysis revealed identical results to most of the patients and they were further checked by the sequencing results of the DNA samples. The established method is a robust, fast and straight forward assay that allows the detection of the common B-thalassemia mutations in Egypt. The described LightCycler system protocol can rapidly screen for many B-globin gene mutations. African Journal of Health Sciences Vol. 13 (3-4) 2006: pp. 70-7

    PENGARUH PEMBELAJARAN MATEMATIKA DENGAN MENGGUNAKAN MODEL RECIPROCAL TEACHING TERHADAP KEMAMPUAN BERPIKIR KREATIF SISWA KELAS VII SEKOLAH MENENGAH PERTAMA NEGERI 18 SAROLANGUN

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    Penelitian ini membahas pengaruh pembelajaran matematika dengan menggunakan model reciprocal teaching terhadap kemampuan berpikir kreatif siswa Sekolah Menengah Pertama Negeri 18 Sarolangun pada pokok bahasan segiempat. Penelitian ini bertujuan untuk mencari bukti apakah benar dengan menggunakan model pembelajaran reciprocal teaching berpengaruh terhadap kemampuan berpikir kreatif. Penelitian ini merupakan penelitian kuantitatif dengan desain pretest-postest control group design. Teknik pengambilan sampel menggunakan Simple Random Sampling dengan sampel berjumlah 15 peserta didik sebagai kelas eksperimen dan 15 peserta didik kelas kontrol. Teknik pengumpulan data dilakukan dengan teknik tes essay sebanyak tiga soal. Analisis pada penelitian ini menggunakan uji dan uji korelasi phi. Dari uji pada taraf signifikansi 5% dan 1% diperoleh dan dari hasil uji korelasi phi pada taraf signifikansi 5% dan 1% diperoleh . Artinya bahwa penerapan model pembelajaran reciprocal teaching berpengaruh secara signifikan terhadap kemampuan berpikir kreatif siswa

    PENGARUH PENERAPAN MODEL THINK TALK WRITE TERHADAP HASIL BELAJAR SISWA MADRASAH TSANAWIYAH SWASTA RAUDLATUL MUHAJIRIN TANGKIT BARU

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    Skripsi ini membahas tentang Pengaruh Penerapan Model Think Talk Write (TTW) Terhadap Hasil Belajar Siswa Mts Raudlatul Muhajirin. Pendekatan dalam penelitian ini adalah pendekatan kuantitatif. Jenis penelitian yang digunakan yaitu metode eksperimen . Desain yang digunakan adalah posttest only control design yaitu membagi kelompok penelitian menjadi dua kelompok. Kelompok pertama disebut kelompok eksperimen yang belajar menggunakan model Think Talk Write dan kelompok kedua disebut kelompok kontrol yang tidak menggunakan model Think Talk Write. Setelah proses perlakuan diberikan, kemudian kelas tersebut diberikan posttest. Instrumen penelitian yang digunakan dalam penelitian ini berupa tes dengan tipe uraian yang terdiri dari 5 soal.. Tes yang digunakan untuk penelitian dilakukan uji validitas. Untuk menguji kebenaran hipotesis dan menjawab rumusan masalah yang telah diklasifikasikan oleh peneliti, maka terlebih dahulu dilakukan analisis data. Analisis data diawali dengan pengujian prasyarat analisis, yaitu uji normalitas dan homogenitas. Kemudian dilanjutkan dengan hipotesis. Hasil penelitian menunjukkan bahwa penerapan model Think Talk Write memberi pengaruh yang signifikan terhadap hasil belajar matematika siswa daripada yang tidak menerapkan model Think Talk Write. Faktor penyebab terjadinya hasil belajar siswa rendah dalam pembelajaran matematika adalah 1).Rendahnya keaktifan, dan pemahaman siswa terhadap materi yang di ajarkan., 2) Kurangnya partisipasi siwa dalam pelajaran matematika, 3) Kurang optimalnya intreraksi antara guru dan siswa, maupun antara siswa dan siswa yang lain

    Peste des petits ruminants in large ruminants, camels and unusual hosts

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    Since its first report in 1942, peste-des-petits-ruminants virus (PPRV) has caused several epidemics in a wide range of susceptible hosts around the world. In the last 30 years, the evidence of natural and experimental infections and virus isolation were reported from novel but unusual hosts such as camel, cattle, buffalo, dogs, Asiatic lion and pigs. In addition, PPRV in a potential vector, biting midges (Culicoides imicola), has been reported. Either presented as clinical and/or subclinical infections, the presence of the virus in an extended range of susceptible hosts highlights the cross-species transmission and supports the hypothesis of an endemic circulation of PPRV among susceptible hosts. However, the potential role of large ruminants, camels and unusual hosts for PPRV epidemiology is still obscure. Therefore, there is a need for molecular and epidemiological investigations of the disease among usual and unusual hosts to achieve the goals of disease control and eradication programmes initiated by national and international organisations, such as the FAO and OIE. This review is the first to summarise the scattered data on PPR in large ruminants, camels and unusual hosts to obtain the global scientific communities' attention for further research on epidemiological aspects, not only in its native hosts, but also in large ruminants, camels and other unusual hosts

    Toward Human-Carnivore Coexistence: Understanding Tolerance for Tigers in Bangladesh

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    Fostering local community tolerance for endangered carnivores, such as tigers (Panthera tigris), is a core component of many conservation strategies. Identification of antecedents of tolerance will facilitate the development of effective tolerance-building conservation action and secure local community support for, and involvement in, conservation initiatives. We use a stated preference approach for measuring tolerance, based on the ‘Wildlife Stakeholder Acceptance Capacity’ concept, to explore villagers’ tolerance levels for tigers in the Bangladesh Sundarbans, an area where, at the time of the research, human-tiger conflict was severe. We apply structural equation modeling to test an a priori defined theoretical model of tolerance and identify the experiential and psychological basis of tolerance in this community. Our results indicate that beliefs about tigers and about the perceived current tiger population trend are predictors of tolerance for tigers. Positive beliefs about tigers and a belief that the tiger population is not currently increasing are both associated with greater stated tolerance for the species. Contrary to commonly-held notions, negative experiences with tigers do not directly affect tolerance levels; instead, their effect is mediated by villagers’ beliefs about tigers and risk perceptions concerning human-tiger conflict incidents. These findings highlight a need to explore and understand the socio-psychological factors that encourage tolerance towards endangered species. Our research also demonstrates the applicability of this approach to tolerance research to a wide range of socio-economic and cultural contexts and reveals its capacity to enhance carnivore conservation efforts worldwide

    Cancer screening and preventative care among long-term cancer survivors in the United Kingdom

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    BACKGROUND: Long-term cancer survivors in the United Kingdom are mostly followed up in a primary care setting by their general practitioner; however, there is little research on the use of services. This study examines whether cancer survivors receive adequate screening and preventative care in UK primary care. PATIENTS AND METHODS: We identified a cohort of long-term survivors of breast, colorectal and prostate cancer with at least a 5-year survival using the General Practice Research Database, with controls matched for age, gender and practice. We compared adherence with cancer screening and the use of preventative care between cancer survivors and controls. RESULTS: The cancer survivors' cohort consisted of 18 612 breast, 5764 colorectal and 4868 prostate cancer survivors. Most cancer survivors receive cancer screening at the same levels as controls, except for breast cancer survivors who were less likely to receive a mammogram than controls (OR=0.78, 95% CI: 0.66-0.92). Long-term cancer survivors received comparable levels of influenza vaccinations and cholesterol tests, but breast (OR 0.81, 95% CI: 0.74-0.87) and prostate cancer survivors (OR=0.70, 95% CI: 0.57-0.87) were less likely to receive a blood pressure test. All survivors were more likely to receive bone densitometry. CONCLUSION: The provision and uptake of preventive care in a primary care setting in the United Kingdom is comparable between the survivors of three common cancers and those who have not had cancer. However, long-term breast cancer survivors in this cohort were less likely to receive a mammogra

    Bat conservation and zoonotic disease risk: a research agenda to prevent misguided persecution in the aftermath of COVID-19

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    Letter to the EditorCOVID-19 has spread around the globe, with massive impacts on global human health, national economies and conservation activities. In the timely editorial about conservation in the maelstrom of COVID-19, Evans et al. (2020) urged the conservation community to collaborate with other relevant sectors of society in the search for solutions to the challenges posed by the current pandemic, as well as future zoonotic outbreaks. Considering the association of COVID 19 with bats (Zhou et al., 2020), bat conservationists will undoubtedly be key actors in this dialogue, and thus an action plan on how best to adjust bat conservation to this new reality, alongside a transdisciplinary research agenda, are clear prioritiesinfo:eu-repo/semantics/publishedVersio

    2019 international consensus on cardiopulmonary resuscitation and emergency cardiovascular care science with treatment recommendations : summary from the basic life support; advanced life support; pediatric life support; neonatal life support; education, implementation, and teams; and first aid task forces

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    The International Liaison Committee on Resuscitation has initiated a continuous review of new, peer-reviewed, published cardiopulmonary resuscitation science. This is the third annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. It addresses the most recent published resuscitation evidence reviewed by International Liaison Committee on Resuscitation Task Force science experts. This summary addresses the role of cardiac arrest centers and dispatcher-assisted cardiopulmonary resuscitation, the role of extracorporeal cardiopulmonary resuscitation in adults and children, vasopressors in adults, advanced airway interventions in adults and children, targeted temperature management in children after cardiac arrest, initial oxygen concentration during resuscitation of newborns, and interventions for presyncope by first aid providers. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the certainty of the evidence on the basis of the Grading of Recommendations, Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations. Insights into the deliberations of the task forces are provided in the Justification and Evidence to Decision Framework Highlights sections. The task forces also listed priority knowledge gaps for further research

    Entropies of Negative Incomes, Pareto-Distributed Loss, and Financial Crises

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    Health monitoring of world economy is an important issue, especially in a time of profound economic difficulty world-wide. The most important aspect of health monitoring is to accurately predict economic downturns. To gain insights into how economic crises develop, we present two metrics, positive and negative income entropy and distribution analysis, to analyze the collective “spatial” and temporal dynamics of companies in nine sectors of the world economy over a 19 year period from 1990–2008. These metrics provide accurate predictive skill with a very low false-positive rate in predicting downturns. The new metrics also provide evidence of phase transition-like behavior prior to the onset of recessions. Such a transition occurs when negative pretax incomes prior to or during economic recessions transition from a thin-tailed exponential distribution to the higher entropy Pareto distribution, and develop even heavier tails than those of the positive pretax incomes. These features propagate from the crisis initiating sector of the economy to other sectors
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