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RISS 인기검색어
- 검색키워드
- 저자 : Shohel Rana (검색결과 5 건)
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Antibiotics in Livestock and Their Effects on the Human Health: Mini Review
Rana Md. Shohel,허선진 공주대학교 자원과학연구소 2022 자원과학연구 Vol.4 No.1
An increase in livestock then led to unsanitary conditions and disease in the animals, prompting producers to administer constant low doses of antibiotics to their animals as a prophylactic to prevent disease. However, the use of antibiotics in food production also led to the spread and development of antimicrobial resistance. Likewise, extensive antibiotic resistance has been reported for bacteria, including human pathogens, from farmed fish and market shrimp. Some of the antibiotic resistance genes identified in food bacteria have also been identified in humans, providing indirect evidence for transfer by food handling and/or consumption. However, therapeutic uses of antibiotics may cause an adverse effect on normal human microflora. Antibiotics can decrease the number of bacteria and sometimes kill the beneficial bacterial species. Basically, broad-spectrum antibiotics may have a potential adverse effect on wide range of gut flora resulting gastrointestinal disturbance. In developed countries, an assortment of systems and programs to monitor antibiotic use, as well as antibiotics resistance in food animals, food products, and humans have been implemented. Such initiatives have led to the substantial decrease of antibiotic consumption and rates of resistance in these settings. This review provides updated information on the antibiotics resistance in livestock and human health.
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Reducing Veterinary Drug Residues in Animal Products: A Review
Md Shohel Rana,Seung Yun Lee,Hae Jin Kang,Sun Jin Hur 한국축산식품학회 2019 한국축산식품학회지 Vol.39 No.5
A survey we conducted suggests that the ingestion of veterinary drug residues in edible animal parts constitutes a potential health hazard for its consumers, including, specifically, the possibility of developing multidrug resistance, carcinogenicity, and disruption of intestinal normal microflora. The survey results indicated that antibiotics, parasitic drugs, anticoccidial, or nonsteroidal anti-inflammatory drugs (NSAIDs) are broadly used, and this use in livestock is associated with the appearance of residues in various animal products such as milk, meat, and eggs. We observed that different cooking procedures, heating temperatures, storage times, fermentation, and pH have the potential to decrease drug residues in animal products. Several studies have reported the use of thermal treatments and sterilization to decrease the quantity of antibiotics such as tetracycline, oxytetracycline, macrolides, and sulfonamides, in animal products. Fermentation treatments also decreased levels of penicillin and pesticides such as dimethoate, malathion, Dichlorodiphenyldichloroethylene, and lindane. pH, known to influence decreases in cloxacillin and oxacillin levels, reportedly enhanced the dissolution of antimicrobial drug residues. Pressure cooking also reduced aldrin, dieldrin, and endosulfan in animal products. Therefore, this review provides updated information on the control of drug residues in animal products, which is of significance to veterinarians, livestock producers, and consumer health.
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Hornarbakhsh, Amin,Nagayama, Tomonori,Rana, Shohel,Tominaga, Tomonori,Hisazumi, Kazumasa,Kanno, Ryoichi Techno-Press 2015 Smart Structures and Systems, An International Jou Vol.15 No.3
Due to corrosion, a large number of belt conveyors support structure in industrial plants have deteriorated. Severe corrosion may result in collapse of the structures. Therefore, practical and effective structural assessment techniques are needed. In this paper, damage identification methods based on two specific local vibration modes, named periodic and isolated local vibration modes, are proposed. The identification methods utilize the facts that support structures have many identical members repeated along the belt conveyor and there exist some local modes within a small frequency range where vibrations of these identical members are much larger than those of the other members. When one of these identical members is damaged, this member no longer vibrates in those modes. Instead, the member vibrates alone in an isolated mode with a lower frequency. A damage identification method based on frequencies comparison of these vibration modes and another method based on amplitude comparison of the periodic local vibration mode are explained. These methods do not require the baseline measurement records of undamaged structure. The methods is capable of detecting multiple damages simultaneously. The applicability of the methods is experimentally validated with a laboratory model and a real belt-conveyor support structure.
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Amin Hornarbakhsh,Tomonori Nagayama,Shohel Rana,Tomonori Tominaga,Kazumasa Hisazumi,Ryoichi Kanno 국제구조공학회 2015 Smart Structures and Systems, An International Jou Vol.15 No.3
Due to corrosion, a large number of belt conveyors support structure in industrial plants havedeteriorated. Severe corrosion may result in collapse of the structures. Therefore, practical and effectivestructural assessment techniques are needed. In this paper, damage identification methods based on twospecific local vibration modes, named periodic and isolated local vibration modes, are proposed. Theidentification methods utilize the facts that support structures have many identical members repeated alongthe belt conveyor and there exist some local modes within a small frequency range where vibrations of theseidentical members are much larger than those of the other members. When one of these identical members isdamaged, this member no longer vibrates in those modes. Instead, the member vibrates alone in an isolatedmode with a lower frequency. A damage identification method based on frequencies comparison of thesevibration modes and another method based on amplitude comparison of the periodic local vibration modeare explained. These methods do not require the baseline measurement records of undamaged structure. Themethods is capable of detecting multiple damages simultaneously. The applicability of the methods isexperimentally validated with a laboratory model and a real belt-conveyor support structure.
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( Isamu Maeda ),( Hirokazu Sakurai ),( Kazuyuki Yoshida ),( Mohammad Shohel Rana Siddiki ),( Tokuo Shimizu ),( Motohiro Fukami ),( Shunsaku Ueda ) 한국미생물 · 생명공학회 2011 Journal of microbiology and biotechnology Vol.21 No.12
Recombinant Rhodopseudomonas palustris, harboring the carotenoid-metabolizing gene crtI (CrtIBS), and whose color changes from greenish yellow to red in response to inorganic As(III), was cultured in transparent microplate wells illuminated with a light emitting diode (LED) array. The cells were seen to grow better under near-infrared light, when compared with cells illuminated with blue or green LEDs. The absorbance ratio of 525 to 425 nm after cultivation for 24 h, which reflects red carotenoid accumulation, increased with an increase in As(III) concentrations. The detection limit of cultures illuminated with near-infrared LED was 5 μg/l, which was equivalent to that of cultures in test tubes illuminated with an incandescent lamp. A near-infrared LED array, in combination with a microplate, enabled the simultaneous handling of multiple cultures, including CrtIBS and a control strain, for normalization by the illumination of those with equal photon flux densities. Thus, the introduction of a near-infrared LED array to the assay is advantageous for the monitoring of arsenic in natural water samples that may contain a number of unknown factors and, therefore, need normalization of the reporter event.
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