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Search Results: 1 - 10 of 384 matches for " SL Hii "
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Application of a high density adsorbent in expanded bed adsorption of lipase from Burkholderia pseudomallei
HS Yong, BT Tey, SL Hii, SMM Kamal, A Ariff, TC Ling
African Journal of Biotechnology , 2010,
Abstract: The application of STREAMLINE Direct HST adsorbent in expanded bed adsorption of lipase from Burkholderia pseudomallei was explored in this study. Scouting of optimum binding and elution condition was performed in batch binding mode. The addition of 0.2 M salt in acetate buffer (pH 5) during adsorption has increased the specificity and quantity of lipase binding onto the adsorbent. The addition of 0.4 M salt in phosphate buffer (pH 7) achieved the highest purification fold (2.5) in elution. The high density of the adsorbent allowed the EBA to be operated at linear velocity as high as 657 cm/h with feedstock containing 4.5% (w/v) wet biomass. The Richardson-Zaki correlation obtained for this EBA system at the presence of 4.5% (w/v) wet biomass is 5.14, a value closed to the laminar flow regime of 4.8, demonstrated that a stable bed is achieved under this operating condition. Meanwhile, a flow velocity of 343 cm/h with bed expansion of 3.2 gave highest dynamic binding capacity (4979.28 U/ml) and productivity (61.52 U/ml.min) for this EBA operation. It also demonstrated that biomass concentration up to 4.5% (w/v) wet weight showed slightly drop of sorption efficiency (0.82) compared to lower biomass concentration (0.94). Further increase of biomass concentration above 4.5% (w/v) wet weight has greatly decreased the equilibrium and dynamic capacity. Application of high density adsorbent tolerated to high density and biomass has reduced the processing time and increased the productivity.
A RE-SURVEY OF AEDES AEGYPTI AND AEDES ALBOPICTUS IN SABAH, MALAYSIA
Feffrey Hii Lu King
Bulletin of Health Research , 2012,
Abstract: Di Sabah, Malaysia telah diadakan survey nyamuk Aedes aegypti dan Aedes albopictus dari bulan Agustus s/d September 1974 dan Maret-April 1975. Survey dilakukan pada 5 daerah di Kudat. Pantai Barat, Pedalaman Sandahan danTawan dengan tujuan untuk melihat distribusi dan density dari kedua jenis nyamuk tsb. Hasil survey menunjukkan bahwa nyamuk A. aegypti telah menyebar pada hampir seluruh daerah pantai Sabah, dan ditemukan hampir pada sebagian besar kotal dan daerah pedesaan di banyak desa. Di bandingkan dengan hasil survey yang pernah dilakukan pada tahun 1970 oleh Ramalingam ternyata terdapat pertambahan 24 persen daerah A. aegypti, dari 58.7 persen daerah A. albopictus selama 4 tahun. A. aegypti sangat biasa terdapat di desa2 pantai sebelah timur, dan ditempat-tempat lainnya menunjukkan Breteau index yang tinggi. Diduga adanya perahu2 dan tempat2 penampungan air merupakan faktor yang penting dalam penyebaran nyamuk. Walaupun tidak terdapat epidemi dengue dan demam berdarah di Sabah, tetapi ada indikasi risiko trahsmissi yang besar di daerah2 dimana Breteau index lebih dari 50. Dari hasil survey ini strategi pemberantasan A. aegypti dapat dikembangkan untuk mencegah terjadinya epidemi dengue dan demam berdarah.
Chelated minerals for poultry
Vieira, SL;
Revista Brasileira de Ciência Avícola , 2008, DOI: 10.1590/S1516-635X2008000200001
Abstract: organic minerals have been subject of an increasing number of investigations recently. these compounds can be considered the most significant event regarding commercial forms of minerals targeting animal supplementation in the last decades. minerals, especially metals, are usually supplemented in poultry feeds using cheap saline sources and have never required a lot of attention in terms of quality. on the other hand, definitions of organic minerals are very broad and frequently lead to confusion when decision-making becomes necessary. organic minerals include any mineral bound to organic compounds, regardless of the type of existing bond between mineral and organic molecules. proteins and carbohydrates are the most frequent candidates in organic mineral combinations. organic fraction size and bond type are not limitations in organic mineral definition; however, essential metals (cu, fe, zn, and mn) can form coordinated bonds, which are stable in intestinal lumen. metals bound to organic ligands by coordinated bonds can dissociate within animal metabolism whereas real covalent bonds cannot. chelated minerals are molecules that have a metal bound to an organic ligand through coordinated bonds; but many organic minerals are not chelates or are not even bound through coordinated bonds. utilization of organic minerals is largely dependent on the ligand; therefore, amino acids and other small molecules with facilitated access to the enterocyte are supposed to be better utilized by animals. organic minerals with ligands presenting long chains may require digestion prior to absorption. after absorption, organic minerals may present physiological effects, which improve specific metabolic responses, such as the immune response. many studies have demonstrated the benefits of metal-amino acid chelates on animal metabolism, but the detection positive effects on live performance is less consistent.
Evaluation for the retention of reproductive structures by Bt and non-Bt intra hirsutum cotton hybrids in different sowing dates and spacings
SL Ahuja
African Journal of Biotechnology , 2006,
Abstract: The retention of the reproductive structures (bolls) was evaluated at 90,120 and 160 days of maturity in eight Bt and non-Bt hybrids from three Private R&D establishments on three dates of sowings (90,120 and 160 days of maturity) and two spacings of 67.5 x 60 cm and 100 x 30 cm. Ankur group Bt hybrids; 651, 2226 and 2534 had reproductive structures retentivity higher than their non-Bt counterpart hybrids in all the three sowings and spacings. However, RCH group Bt hybrids; 134 and 138 had lesser/comparable boll retentivity in first two observations at 90 and 120 days in the earliest and the next sowing. In the last sowing with wider inter row spacing their trend was similar to Ankur group hybrids in the first sowing. MRC 6301 also behaved like RCH group hybrids. Bt hybrids of all the three establishments had more reproductive structure retentivity than their non-Bt hybrids counterparts in early, closer inter row and wider intra row sowing except for Bt hybrid RCH134 which had the highest bearing in the late sowing with wider inter row and closer intra row spacing. Association study indicated similar trend of boll bearing in Bt and non-Bt hybrids in early sowing and this trend seems to be reverse in later sowings
Applying lean Six Sigma to reduce linen loss in an acute care hospital
SL Furterer
International Journal of Engineering, Science and Technology , 2011,
Abstract: This paper describes a case study in an acute care hospital that formed a cross-functional team to apply the Lean Six Sigma problem solving methodology and tools to improve the linen processes. The goal of the project was to identify and implement process improvements that would reduce linen loss. The project team applied the Six Sigma DMAIC (Define-Measure-Analyze-Improve-Control) problem solving approach. The team was able to improve the key linen operational metric, soil to clean linen ratio by 16% and saved $77,480 for the first year, by making operational improvements and implementing automated linen and scrub dispensers.
Ethnopharmacological and Phytochemical Review of Allium Species (Sweet Garlic) and Tulbaghia Species (Wild Garlic) from Southern Africa
SL Lyantagaye
Tanzania Journal of Science , 2011,
Abstract: Tulbaghia (wild Garlic) is a plant genus most closely related to the genus Allium both in the family Alliaceae and is entirely indigenous to Southern Africa. Indigenous people use several species of the genus as food and medicine, and few species are commonly grown as ornamentals. Biological and pharmacological research on Tulbaghia species and their relationship with Allium sativum (sweet Garlic) are presented and critically evaluated. Informations from studies on the treatment of microbes-caused diseases as well as of cancer have been presented in ethnobotanical reports. Moreover, recent scientific studies have been performed on crude extracts for certain Tulbaghia species as reviewed in this article. This article gives a critical assessment of the literature to date and aims to show that the pharmaceutical potential of the members of the genus Tulbaghia is comparable to that of its close relative A. sativum but has been underestimated and deserves closer attention.
Urban Health Issues In India- Need of the Day
Kantharia SL
National Journal of Community Medicine , 2010,
Abstract: No Abstract available
Performance of sorghum varieties and hybrids during postrainy season under drought situations in Vertisols in Bellary, India
SL Patil
Journal of SAT Agricultural Research , 2007,
Abstract:
Unnecessary & Unsafe Injections Replace Disposable by Auto-Disable Syringes
SL Srivastav
Journal of Universal College of Medical Sciences , 2013, DOI: 10.3126/jucms.v1i3.8770
Abstract: Injections are a skin procedure performed with a syringe and needle to introduce a substance for prophylactic, curative, or recreational purpose. Injections can be given intevenously, intramuscularly, intradermally, or subcutaneously. Injections are among the most frequently used medical procedures, with an estimated 12 billion injections administered worldwide. ?A large majority (more than 90%) of these injections are administered for curative purpose (for every vaccination, 20 curative injections are administered).
Effects of Multimedia Redundancy in History Learning among ‘Deep and Surface’ Students
Sii Ching Hii,Soon Fook Fong
Asian Social Science , 2010, DOI: 10.5539/ass.v6n6p119
Abstract: The purpose of this study was to investigate the effects of redundant information in multimedia presentation in history learning. The two modes of multimedia presentation, namely multiple-channel presentation (text + graphics, pictures + redundancy audio, video and animation) and single-channel presentation (text + graphics + pictures) on history learning among deep and surface students were examined. The sample consisted of 240 Form One students from four Malaysian secondary schools. Findings of this study showed that students interacted with the MCP mode obtained significantly higher gain score compared to students interact with the SCP mode. Irrespective of the learning approaches, students using the MCP mode outperformed students using the SCP mode. Apparently, additional redundant information that are relevant to the contents within and across the visual and aural channels provide greater reinforcement in organizing and structuring information issuing in better learning. Results of this study suggest that cognitive load in multimedia-based learning can be minimized if adequate time is provided for comprehension and the pace of learning is under learner control.
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