381 research outputs found

    Fungi Endofit dari Tanaman Secang (Caesalpinia Sappan L) sebagai Penghasil Senyawa Antioksidan: Endophytic Fungi From Secang (Caesalpinia Sappan L) AS Producer Of Antioxidant Compounds

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    Endophytic fungi are microbes that reside symbiotically in the plant tissues with undetected negative impacts to their host plants. These fungi are able to produce elements similar to those produced by their host plants. Secang (Caesalpinia sappan L.) has been known as one of the medicinal plants that contains compounds with antioxidant activity thus promote a hypothesis that its endophytic fungi may yield a similar antioxidant effect. In this study, the isolation of endophytic fungi from Secang as the producer of antioxidant compounds was carried out. At the initial stage, endophytic fungi were isolated from the leaves, the twigs, the stems, and the rootsof Secang using the agar plate method. Pure fungi isolates were then subjected to fermentation process using the PDBgrowth medium supplemented with yeast extractand wereconstantly shaken for 12 days at a speed of 200 rpm to produce secondary metabolites. Fermentatesobtained from all fungi isolates were then extracted using ethyl acetate and further tested for their antioxidant activities. In this study, of 19 isolates that were obtained from four parts of the Secang, five fungi isolates, coded as IFD1, IFD4, IFR5, IFA1, and IFA2 were found to yield antioxidant activities demonstrated by the presence of yellow spots on the chromatogram. elementary schools representatives “not good ranking”, the education did not influence their knowledge with a p value of 0.149. Analysis of the Wilcoxon test in all elementary schools showed a p value p ≤ 0,001, which meant that education had an influence on the knowledge of fifth grade students in elementary schools in Palu City

    Potensi Kapsul Bee Pollen Plus sebagai Food Supplement Inovatif Peningkat Stamina dalam Rangka Pencegahan Penggunaan Doping pada Atlet Makassar : Uji Coba pada Mahasiswa UKM Sepak Bola

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    Doping used for stamina enhancement and athletes' performance is actually a medicine that has negative effects on health and potentially causes an addiction. Therefore, it is necessary supplements that can increase the stamina and endurance of an athlete and at the same time could minimize the possibility of doping USAge. Bee pollen is one of the products of bees which is rich nutrients. The nutrients content of Bee pollen such as carbohydrates, proteins, lipids, minerals, vitamins, and polyphenols is needed by athletes to increase the endurance and stamina in their activities. To enrich its bioactive components, bee pollen extract and fresh bee pollen powder are combined and called Bee Pollen Plus. The current study was Quasi-Experimental with Non-randomized Pre-Post Test Control Group model design by comparing before and after of bee pollen plus intervention. The preparation of bee pollen plus capsule is started with bee pollen extraction followed by the preparation of bee pollen capsule. By the process, it is obtained 18.48% of rendamen percent. The chemical compound analysis showed the protein, carbohydrate and polyphenol levels of bee pollen plus two times higher than bee pollen powder. The intervention of bee pollen plus capsule was provided for 1 week to the student in football activity unit of Hasanuddin University. The running time, blood pressure, pulse rate, body temperature, and breathing frequency were calculated after physical exercise by using the treadmill. The result obtained shows the increased physical performance especially for running time and pulse rate. It can be concluded that the bee pollen plus capsule has been effective to increase the stamina and endurance of the athlete after physical exercise

    Pembuatan Pasta Gigi Katekin Teh Hijau Dan Uji Daya Hambat Terhadap Bakteri Streptococcus Mutans Dan Lactobascillus Ascidopillus

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    Pembuatan pasta gigi ini dilatar belakangi oleh keinginan peneliti agar memudahkan masyarakat menggunakan bahan alami katekin teh hijau yang hasilnya langsung di uji efektifitasnya terhadap daya hambat bakteri kariogenik. Penelitian ini bertujuan untuk melakukan pembuatan prodak pasta gigi katekin teh hijau dengan formula yang sesuai dengan hasil uji dan melakukan pengujian daya hambat pasta gigi katekin teh hijau terhadap bakteri streptococcus mutans dan lactobacillus acidophilus. Pembuatan pasta gigi katekin teh hijau didahului dengan pembuatan ekstrak katekin dan uji konsentrasi hambat minimal (KHM) dan uji konsentrasi bunuh minimal (KBH) menggunakan metode dilusi cair.Peracikan formula dan pembuatan pasta gigi katekin teh hijau dilakukan sesuai hasil uji KHM (MIC). Pasta gigi katekin teh hijau ini dilakukan pengukuran kadar total flavonoid dan total polifenol, selanjutnya pengukuran uji daya hambat pasta gigi katekin teh hijau dilakukan dengan metode difusi menggunakan well (sumuran) sebagai reservoar sampel uji terhadap bakteri streptococus mutans dan lactobacilus acidophilus. Hasil diperoleh prodak pasta gigi katekin teh hijau dengan kandungan kadar flavonoid 77% dan kadar polifenol 41%, sedangkan hasil uji diameter hambatan pasta gigi katekin teh hijau terhadap bakteri streptococcus mutans 17,2 mm dan bakteri lactobacillus acidophilus 19,6 mm. Hasil ini menunjukkan bahwa prodak katekin teh hijau ini sangat efektif digunakan sehari-hari sebagai perawatan gigi dan juga sebagai antibakteri kariogenik. Making Green Tea Catechin Toothpaste and Inhibition Test Against Streptococcus Mutans and Acidophilus Lactobaccilus. The manufacture of this toothpaste is motivated by the desire of researchers to facilitate the public to use natural ingredients of green tea catechins whose result effectiveness against cariogenic bacteria was directly tested inhibition. This study is to find the right formula composition for greentea catechins toothpaste based on the result of the inhibition properties of greentea cathecins against tostreptococcus mutans dan lactobacillus acidophilus. The manufacture of greentea catechins toothpaste was after making catechins extracts and testing minimal inhibition concentration (MIC) and minimal bactericidal concentration (MBC) using liquid dilution method. The toothpaste was then made according to the result of MIC. The toothpaste\u27s flavonoid and polyphenol total contain was measured; then the inhibition property of the toothpaste to was measured using diffusion method with wells as the sample reservoar for streptococus mutans dan lactobacilus acidophilus. It is found that the toothpaste contains 77% flavonoid and 41% polyphenol, and the diameter of the inhibition property of green tea catechyn is 17.2 mm for streptococus mutans and 19.6 mm for lactobacilus acidophilus. This result shows that greentea catechyn toothpaste is very effective for daily oral care which is antibacterial

    Bullous central serous chorioretinopathy: A rare and atypical form of central serous chorioretinopathy. a systematic review

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    Bullous central serous chorioretinopathy (bCSCR) is a rare variant of the central serous chorioretinopathy, complicated by an exudative retinal detachment with shifting fluid. This systematic review aims to present the epidemiology, the pathogenesis, the clinical presentation, the imaging, the differential diagnosis, and the latest treatments of this disease. A total of 60 studies were identified following a literature search adhering to PRISMA guidelines. After full-text evaluation, 34 studies about bCSCR were included. bCSCR usually affects middle-aged men, and the principal risk factor is corticosteroid medications. Pathogenesis is related to an increased choroidal vessel and choriocapillaris permeability, with subsequent subretinal fluid accumulation, rich in fibrin, which may provoke the exudative retinal detachment. Clinical presentation and imaging are fundamental to distinguish bCSCR from other pathologies, avoiding unappropriated treatment. Corticosteroid withdraws (if assumed) and laser photocoagulation of leakage sites seen at angiography may speed up retinal reattachment. Verteporfin photodynamic therapy, transpupillary thermal therapy, oral eplerenone and scleral thinning surgery are other therapeutic options. An early diagnosis might prevent disease progression due to harmful medications as well as unnecessary surgery

    Value Chain Analysis of Bamboo Production: The Case of Bule Woreda, Gedeo Zone, Snnprs

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    Bamboo plays very important role socially, economically and ecologically. Despite the fact that bamboo play important role in improving the livelihood of the local community it has an insignificant contribution due to the products are at a very rudimentary level and inexistence of well established bamboo industry. These situations hampered the opportunity of the potential of bamboo that will improve the poor living standards and hence sustainable utilization of the resources. This study was initiated to analyze the existing bamboo market chain in Bule Woreda Gedeo Zone, Southern Nations Nationalities and Regional State. The focus of the study was to  analyze the determinants of marketable supply of Bamboo, identify actors involved in the processes and what do they actually do, investigate the costs incurred by each participants and the benefits driven by each. The data were collected by using a semi-structured questionnaires together with secondary data gathered from agricultural bureau offices and other unpublished sources. Robust Ordinary least square regression econometric model was used to analyze the determinants of market supply of bamboo. The results from this analysis indicates that price of bamboo culm, educational level of producers, distance to the nearest market, and access to market information were found to be  significant variables influencing bamboo supply to the market. A significant amount (70.16%) of bamboo produced is channeled through producers- traders- processors- consumers chain. The concentration ratio of two firms measures of market structure indicated there exist  super tight oligopolistic nature of bamboo market. Moreover, marketing margins also indicate that the producers get much lower benefit than any other market chain actors. The major problems of the production identified by bamboo producers in the study area arised from road infrastructure and market information. Therefore improving road infrastructure, provision of formal education and market information,  and improving the existing chain through creating appropriate market linkage are recommended. Keywords: Value chain, value chain analysis, structure- conduct- performance, concentration ratio, marketing channel and marketing margin

    What is the impact of intraoperative microscope-integrated oct in ophthalmic surgery? Relevant applications and outcomes. a systematic review

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    Background: Optical coherence tomography (OCT) has recently been introduced in the operating theatre. The aim of this review is to present the actual role of microscope-integrated optical coherence tomography (MI-OCT) in ophthalmology. Method: A total of 314 studies were identified, following a literature search adhering to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. After full-text evaluation, 81 studies discussing MI-OCT applications in ophthalmology were included. Results: At present, three microscope-integrated optical coherence tomography systems are commercially available. MI-OCT can help anterior and posterior segment surgeons in the decision-making process, providing direct visualization of anatomic planes before and after surgical manoeuvres, assisting in complex cases, and detecting or confirming intraoperative complications. Applications range from corneal transplant to macular surgery, including cataract surgery, glaucoma surgery, paediatric examination, proliferative diabetic retinopathy surgery, and retinal detachment surgery. Conclusion: The use of MI-OCT in ophthalmic surgery is becoming increasingly prevalent and has been applied in almost all procedures. However, there are still limitations to be overcome and the technology involved remains difficult to access and use

    Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

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    GEMS (Gamma Energy Marine Spectrometer) is a prototype of an autonomous radioactivity sensor for underwater measurements, developed in the framework for a development of a submarine telescope for neutrino detection (KM3NeT Design Study Project). The spectrometer is highly sensitive to gamma rays produced by 40K decays but it can detect other natural (e.g., 238U,232Th) and anthropogenic radio-nuclides (e.g., 137Cs). GEMS was firstly tested and calibrated in the laboratory using known sources and it was successfully deployed for a long-term (6 months) monitoring at a depth of 3200 m in the Ionian Sea (Capo Passero, offshore Eastern Sicily). The instrument recorded data for the whole deployment period within the expected specifications. This monitoring provided, for the first time, a continuous time-series of radioactivity in deep-sea.In press4.5. Studi sul degassamento naturale e sui gas petroliferiJCR Journalope

    Sampling protein motion and solvent effect during ligand binding.

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    An exhaustive description of the molecular recognition mechanism between a ligand and its biological target is of great value because it provides the opportunity for an exogenous control of the related process. Very often this aim can be pursued using high resolution structures of the complex in combination with inexpensive computational protocols such as docking algorithms. Unfortunately, in many other cases a number of factors, like protein flexibility or solvent effects, increase the degree of complexity of ligand/protein interaction and these standard techniques are no longer sufficient to describe the binding event. We have experienced and tested these limits in the present study in which we have developed and revealed the mechanism of binding of a new series of potent inhibitors of Adenosine Deaminase. We have first performed a large number of docking calculations, which unfortunately failed to yield reliable results due to the dynamical character of the enzyme and the complex role of the solvent. Thus, we have stepped up the computational strategy using a protocol based on metadynamics. Our approach has allowed dealing with protein motion and solvation during ligand binding and finally identifying the lowest energy binding modes of the most potent compound of the series, 4-decyl-pyrazolo[1,5-a]pyrimidin-7-one
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