Judul: Effect of Monday-Thursday Fasting on Working Memory of Adult Human
Abstrak: Human being performs complex mental processes which include memory. In daily life memory is used in a dynamic system called working memory. Working memory is a system and process that holds and manipulates information temporarily in the brain. To perform memory task, human brain needs sufficient glucose pertaining to its energy demand. Fasting is a condition when there is no glucose intake to the body temporarily. Previous study shows that fasting gave positive effect on working memory of teenagers but gave no effect on college students. Present study aims to find out whether or not fasting influence memory performance of adult human. Visual working memory of each subject was tested using Delayed Matching To Sample (DMS) task. This test was done in fasting and non-fasting condition. Data were analyzed using Linear Model implemented in stat package of R program. Result shows that fasting did not affect memory performance both in reaction time and accomplished level. The absence of any effect is due to homeostasis system in the body. Learning effect and habituation are more considered to affect working memory performance.
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Judul: Effect Of Monday-Thursday Fasting On Cognitive Function
Abstrak: Human memory is a complex cognitive function. Based on its storage capacity, memory can be distinguished into two kinds. They are short-term and long-term memories. A kind of shortterm memory is called working memory. Working memory is a limited capacity system that holds items of information transiently in mind in the service of comprehension, thinking, and planning. To perform cognitive task, brain requires large energy. Fasting declines blood glucose concentration similar to skipping breakfast. Many people in Indonesia habitually perform fasting every Monday and Thursday irrespective of the month. The Monday-Thursday fasting therefore provides a model of how habitual fasting influences performances on working memory task. Present research used Delayed Matching to Sample paradigm is a widely used method to study visuospatial working memory in human and animal. Test was analyzed by linear mixed effect statistical model using statistical language S which is implemented in lme4 package of program R. Result shows that performance of visuospatial working memory task did not affected by Monday- Thursday fasting and its duration. It also did not affected by sleep length, and did not differ between male and female. It increased session by session which reflect the ability of subjects to learn the pictorial stimuli.
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Judul: Penyakit kudis pada kelinci ( Scabies ) dan cara penanggulangannya
Abstrak: Salah satu penyakit yang disebabkan oleh parasit terutama ektoparasit pada kelinci yang sering dijumpai adalah penyakit kudis. Kudis merupakan penyakit kulit yang sangat menular yang disebabkan oleh beberapa jenis tungau. Beberapa jenis tungau penyebab kudis yang telah diketahui antara lain Sarcoptes scabiei, Notoedres sp. dan Psoroptes sp. Hewan umur muda, hewan tua yang dipelihara dalam kondisi jelek merupakan faktor-faktor predisposisi bagi infestasi penyakit kudis. Infeksi meluas terutama oleh kontak dengan larva, nympha dan betina yang bunting. Tungau sangat peka terhadap kekeringan dan tidak dapat hidup lama pada hostnya dalam keadaan tersebut. Dalam penyebarannya lebih menyukai bagian tubuh yang tidak ditutupi banyak bulu seperti kepala dan telinga. Gejala klinis yang ditimbulkannya antara lain hewan menampakkan rasa gatal, gelisah dan selalu menggaruk-garuk badannya, kulit merah, menebal, ada exudat, bulu rontok dan kulit menjadi gundul. Apabila kasusnya parah maka hewan bisa mengalami kekurusan, dehidrasi dan akhirnya terjadi Kematian. Diagnosa didasarkan atas gejala klinis. Selain itu untuk lebih meyakinkan diagnosa dilakukan pemeriksaan mikroskopis dari bahan kerokan kulit. Tindakan pencegahan mencakup penempatan hewan di kandang yang bersih dan hangat, memberi makan yang bergizi baik. Untuk pemberantasan populasi tungau diperlukan tindakan isolasi hewan sakit, bulu-bulu atau rambut dicukur kemudian bagian kerak-kerak yang tebal dibersihkan dengan sabun dan air hangat dan dijaga terhadap kontak dengan hewan yang sehat. Obat-obat yang sering digunakan antara lain emulsi belerang, benzyl benzoat, Lindane, Tetmosol, Coumaphos dan Ivermectin.
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