Life Sciences Commons^™

Study On Flow Field Of Polylactic Acid In The Nose Transition Body Of Co-Rotating Twin-Screw Extruder, Shi Junfeng, Huang Zhigang, Jiang Weixin, Li Menglin, Zhang Hongjian

Food and Machinery

Three-dimensional isothermal flow field of polylactic acid(PLA) of the nose transitional body of length to diameter ratio is 441 experiment with a small meshing direction twin-screw extruder head by using the PALYFLOW software. The fields of velocity, pressure, shear rate and viscosity with different process parameters are analyzed and compared. Results showed that the flow field effect become better with the increase of the screw speed and the flow rate at the appropriate temperature，but compared with the increase of the screw speed, the increase of the melt flow was more beneficial to improve mixing and plasticizing effect of the extruder …

Statistics And Analysis Of Research Literature Of Genetically Modified Food In China, Wu Songfei, Fan Jinhua

Food and Machinery

Based on the theories of statistics and econometrics, the research selected 341 CNKI research papers on Chinese genetically modified food, published during 1997 and 2016. It was pointed out that these published journals demonstrated a certain degree of concentration, core scholars carried out in-depth researches and research directions representing a certain degree of regularity and extensionality. The results showed that researches of domestic scholars on genetically modified foods tend to increase, while few research literatures on natural science were found. It was necessary that the researchers should commit to studying transgenic engineering technology. However, as social science research literature revealed, …

Smokejumper Obituary: Bowman, Robert M. (North Cascades 1955), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Development Of A Combining Sterilization Equipment Of High Pressure Carbon Dioxide Treatment And Ultra-High Pressure Homogenization Treatment, Sun Yanlin, Su Shupeng, Han Liying, Jiang Shu

Food and Machinery

High pressure carbon dioxide treatment (HPCD) and ultra-high pressure homogenization treatment (HPH) are promising non-thermal sterilization technologies. A new type of combining sterilization technology of HPCD and HPH was developed to enhance the sterilization capabilities. The working principles, characteristics, structural components of the combining sterilization technologies were introduced systematically, and the physical prototype was developed. These three sterilization technologies were evaluated by comparing the inactivation of Saccharomyces cerevisiae, and the test results showed that the combining sterilization technology was better than that of the single one.

Freshwater Fish Pneumatic Machinery To Head-Cutting Method Research, Liu Jing, Zhang Fan, Wan Peng, Tan Hequn

Food and Machinery

Freshwater fish head before processing as a freshwater fish processing a difficult point in the process of automated processing, to head the processing effect directly affects and restricts the freshwater fish late deep processing of the quality of the products. This paper presents A use of pneumatic cylinders contour design tool for freshwater fish mechanical processing way to head, is designed and developed A pneumatic head machine prototype, to go head machine prototype meat rate and recovery rate of head as the main performance indexes, performance parameters affecting the freshwater fish head machine prototype of fish head positioning distance, the …

Effect Of Mechanical Vibration During The Transportation Process On The Storage Quality Of Kiwi Fruit, Zhang Zhe, Zhang Zhiquan, Mao Li, Tian Jinjin, Hao Junjie, Li Limin, Mao Yiqiong

Food and Machinery

Based on the actual situation in the transport process, the effects of mechanical vibration frequencies and acceleration on the storage quality of kiwi fruit was investigated. The change processes of storage quality of kiwi fruit were studied under five vibration frequencies of 10, 20, 30, 40, 50 Hz and three vibration accelerations of 2.5, 5.0 and 7.5 m/s². Moreover the effects of mechanical vibration on the hardness, the content in internal soluble solids, titratable acid, V_C, and MDA of each group of kiwi fruit have been analyzed. The results indicated that the hardness, titratable acid, V …

Effect Of Nano-Sio2 Modified Ldpe Film On Postharvest Quality Of Gonggan, Song Mubo, Fang Fang, Luo Zishen, Li Dong, Chen Zhenlin, Xuan Liting, Shuai Liang, Duan Zhenhua

Food and Machinery

In order to study the effect of nano-SiO₂ modified low density polyethylene (LDPE) film on Gonggan storage, the influences of unpacked, LDPE film and nano-SiO₂ LDPE film packaging treatments on postharvest quality of Gonggan were investigated. The results showed that both of the packing materials could improve the postharvest quality of Gonggan, and nano-SiO₂ LDPE film was better in slowing down the increase of the decay rate and weight loss ratio, and the decrease of firmness. Moreover, the nano-SiO₂ LDPE film was found to be better in inhibited the accumulation of malonaldehyde (MDA), and maintained higher …

Ultrasonic Enhancement Of Tartary Buckwheat Germination And The Production Of Nutrients In Sprouts, Wang Shunmin, Wang Jianfei

Food and Machinery

Tartary buckwheat (Fagopyrum tataricum) seeds were treated using ultrasonic at different power and time and temperature. The exposed grains were germinated, then harvested after incubation on the 2rd, 4th, and 6th days. The effects of ultrasonic on the germination rate of the tartary buckwheat seeds and some nutrient compounds in the sprouts were detected, and the DPPH radical-scavenging activities of the seedlings were investigated. The results showed that with treatment of 280 W ultrasonic, at 20 ℃ for 35 min, the highest rates of initial (88.0%) and final (100.0%) germination were obtained after incubation. With the treatment of 240 W …

Ultrasonic-Assisted Extraction And Physicochemical Characteristics Of Collagen From Rabbit-Skin, Zhang Xiaojie, Zhang Yuhao, Ma Liang, Ma Mingsi, Zheng Hong, Sun Yi

Food and Machinery

The application of ultrasonic irradiation to extract pepsin-soluble collagen from the skins of rabbit was investigated in this study. The results showed that the extraction rate of collagen using the ultrasonic irradiation was (83.69±0.51) % and the yield increased by 25% in comparison with the conventional pepsin isolation method. The result of polyacrylamide gel electrophoresis confirmed that the subunits structure of collagen using the ultrasonic irradiation was mainly of α1, α2 and β, without subunit degradation. Moreover, the ultraviolet spectrum exhibited a typical absorption peak at 217 nm, indicating that it greatly maintained the characteristics of type I collagen. Additionally, …

Optimization On Extrusion Process Ofaloe-Maize Blend By Linear Interpolation Method, Wei Hongyu, Luo Shaoming, Zhu Lixue, Zhou Yumei

Food and Machinery

Aiming at the problem of low efficiency of by-product in aloe processing, the aloe leaves were dried，crushed and mixed with maize flour, and then were extruded to make aloe-maize health food. Single factor and five factors four levels orthogonal test were used to study the influence of process parameters on characteristics of the extruded products. Linear interpolation method was used to evaluate the products characteristics, and the process parameters were optimized: the feeding rate is 30 r/min, the screw speed is 115 r/min, the water content is 14%, the aloe content is 4% and the extrusion temperature is 150 ℃

Present Situation, Problems And Countermeasures Of Agricultural Scientific And Technological Innovation In China, Hu Yi, Chen Fang, Yi Jianyong, Zhang Zhenghe, Wang Jing, Mo Yingjie

Food and Machinery

The present situation of agricultural science and technology innovation activities in China were expounded in this paper, and the characteristics of various innovation subjects, especially based on the universities was pointed out. Simultaneously, the current problems of agricultural technology innovation system were also analyzed, including the lack of innovation capability and financial support, the difficulty of technology promotion and transformation, and the imperfect of service platform. Finally, some practical and feasible policy were proposed in order to improve the agricultural technology innovation system. We suggested that government should support the technology innovation in agricultural enterprises and improve the evaluation mechanism …

Perceived Effects Of Use Of Information And Communication Technologies (Icts) On Rural Farmers’ Knowledge In Orlu Agricultural Zone, Imo State., Tijjani Abu Rimi Mr, Anaeto Francis Chudi Dr, Emerhirhi Emily Emily Mrs

Library Philosophy and Practice (e-journal)

The aim of this study was to ascertain the effects of use of Information and Communication Technologies (ICTs) on farmers’ knowledge in Orlu Agricultural Zone, Imo State. Data were collected with structured questionnaires distributed to 130 respondents randomly selected from the 10 extension blocks in Orlu Agricultural Zone. Data collected were analyzed descriptively. The result obtained showed that, radio is the most readily available ICT device (99.2%), followed by mobile phone (97.7%). It was also observed that ICT use have effects on the farmers’ knowledge on improve use of equipment with a mean response of 2.93, increase knowledge of use …

Analysis Of The Roles Of Information And Communications Technologies In Rural Women Farmers’ Empowerment In Rivers State, Nigeria., Tijjani Abu Rimi Mr, Anaeto Francis Chudi Dr

Library Philosophy and Practice (e-journal)

Information and Communication Technology is a potent force in the developing world for social, economic and educational transformation of individuals, agencies and institutions. This study examined the veritable roles of ICT in empowering rural women farmers in Rivers State. The specific objectives were to examine the demographic characteristics of the respondents, identify ICT devices in use by the respondents; information needs of the respondents, the roles of ICTs in rural women empowerment and constraints to the use of ICT devices by the respondents. Structured questionnaire was used to elicit information from respondents and oral interview where necessary. The respondents were …

Establishing Sustainable Community Garden Interventions With Aid From Health Promotion Organizations, Rachel Joann Buenemann

Theses and Dissertations

Community garden interventions provide policy, system and environmental change at the community level to establish health behaviors, which act in contest to obesity risk factors. Limited research examines factors, which influence the sustainability of community garden interventions. Therefore, in this study, a sample of 10 Midwestern community gardens associated through funding from a health promotion organization in 2013, collected data through the interviewing and surveying of 10 garden administrators and surveying of 12 garden volunteers. The study identified garden benefits perceived by garden administrators and volunteers to include contributions to social justice, continued education, enhanced social cohesion, increased access to …

Migration And The Post-Fledging Period: Examining Two Critical Stages Of The Cerulean Warbler Life Cycle, Douglas William Raybuck

Student Theses and Dissertations

To reverse declining population trends for migratory birds, a full annual and life cycle conservation approach is necessary. However, two life history stages of relatively high mortality—the migratory and the post-fledging periods—are not well-understood for most declining bird species, including the Cerulean Warbler (Setophaga cerulea), a declining species considered vulnerable to extinction. Here, I explored the possibility of using geolocators to obtain migration data for Cerulean Warblers and examined potential negative effects of applying these devices to this species, finding no effects during the breeding season of deployment but lowered annual return rates compared with color-banded control counterparts. I also …

Effects Of Exposure To Quantum Dots In The External And Internal Environments Of Organisms, Kenton Layne Leigh

Student Theses and Dissertations

The use of nanotechnology in research and consumer products is increasing, but there are few studies regarding the safety of nanoparticles (NPs). NPs’ small size and increased surface area allow for unique physical and chemical properties not seen in bulk counterparts of the same material. Thus, NP interactions within environmental and biological matrices are not well understood. Specifically, quantum dots (QDs) have garnered increased attention due to their superior optical properties. However, little research on the effects of QDs on the environment is available. The studies described herein provide data regarding interactions of QDs in aquatic and terrestrial environments using …

Sodium-Myoinositol Cotransporter-1, Smit1, Mediates The Production Of Reactive Oxygen Species Induced By Hyperglycemia In The Heart, Anne Van Steenbergen, Magali Balteau, Audrey Ginion, Laura Ferté, Sylvain Battault, Christophe De Meester De Ravenstein, Jean-Luc Balligand, Evangelos-Panagiotis Daskalopoulos, Patrick Gilon, Florin Despa, Sanda Despa, Jean-Louis Vanoverschelde, Sandrine Horman, Hermann Koepsell, Gerard Berry, Louis Hue, Luc Bertrand, Christophe Beauloye

Pharmacology and Nutritional Sciences Faculty Publications

Hyperglycemia (HG) stimulates the production of reactive oxygen species in the heart through activation of NADPH oxidase 2 (NOX2). This production is independent of glucose metabolism but requires sodium/glucose cotransporters (SGLT). Seven SGLT isoforms (SGLT1 to 6 and sodium-myoinositol cotransporter-1, SMIT1) are known, although their expression and function in the heart remain elusive. We investigated these 7 isoforms and found that only SGLT1 and SMIT1 were expressed in mouse, rat and human hearts. In cardiomyocytes, galactose (transported through SGLT1) did not activate NOX2. Accordingly, SGLT1 deficiency did not prevent HG-induced NOX2 activation, ruling it out in the cellular response to …

Mastoid Vibration Affects Dynamic Postural Control During Gait In Healthy Older Adults, Jung Hung Chien, Mukul Mukherjee, Jenny Kent, Nikolas Stergiou

Journal Articles

Vestibular disorders are difficult to diagnose early due to the lack of a systematic assessment. Our previous work has developed a reliable experimental design and the result shows promising results that vestibular sensory input while walking could be affected through mastoid vibration (MV) and changes are in the direction of motion. In the present paper, we wanted to extend this work to older adults and investigate how manipulating sensory input through mastoid vibration (MV) could affect dynamic postural control during walking. Three levels of MV (none, unilateral, and bilateral) applied via vibrating elements placed on the mastoid processes were combined …

Development Of A Novel Method To Express And Purify Vaccinia Virus Early Transcription Factors A7 And D6 Using Bacteria, Omkar M. Gandbhir

Seton Hall University Dissertations and Theses (ETDs)

The eradication of Smallpox is one of the greatest human achievements. However other poxviruses still exist infecting humans (Molluscum Contagiosum, monkeypox, and Vaccinia) or livestock (cowpox, sheeppox). Though vaccines and anti-virals exist, the side effects are serious, and viral resistance has been detected. The genome amongst poxviruses is highly conserved, early gene promoters maintain a specific critical consensus region that can be targeted for development of novel broad spectrum therapeutics. Using Vaccinia early transcription factors (VETFs) a novel method of expressing and purifying VETF A7 and D6 was developed. A7 and D6 are required for transcription of early genes recruiting …

Molecular Cloning And Characterization Of A Stilbenoid Prenyltransferase Gene Family In Peanut, Tianhong Yang

Student Theses and Dissertations

Peanut (Arachis hypogaea) produces prenylated stilbenoids as phytoalexins to fight against various pathogens. In addition, the prenylated stilbenoids exhibit several bioactivities with potential applications in human health. Despite their importance, the availability of prenylated stilbenoids is limited and their biosynthetic pathways remain to be elucidated. To date, stilbenoid prenyltransferase genes have not been identified from any plant species. Based on the prenyl unit position on the prenylated stilbenoids, it was hypothesized that different prenyltransferases are involved in the biosynthesis of distinct prenylated stilbenoids in peanut. To this end, an elicitor controlled stilbenoid bioproduction system was developed using hairy roots of …

Habitat And Community Associations And The Population Dynamics Of A Temporary Coral-Reef Fish Ectoparasite, John Michael Artim

Student Theses and Dissertations

Coral reef is habitat constructed by the scleractinian coral after which the habitat is named. While scleractinian coral colonies are often meters in extent, they are composed of small individual organisms—typically on the scale of millimeters across. Coral reefs that include an abundance of many coral species support a diverse abundance of fish and conspicuous invertebrate life. These macro constituents of coral reefs—coral colonies, reef fish and conspicuous invertebrates—have been the primary focus for much of the existing body of coral reef ecology research. One of the inconspicuous and understudied coral reef invertebrate constituents are gnathiid isopod fish parasites. These …

Changing The Pathobiological Paradigm In Myelodysplastic Syndromes: The Nlrp3 Inflammasome Drives The Mds Phenotype, Ashley Basiorka

USF Tampa Graduate Theses and Dissertations

Note: Portions of this abstract have been previously published in the journal Blood, Basiorka et al. Blood. 2016 Oct 13, and has been reproduced in this manuscript with permission from the publisher.

Myelodysplastic syndromes (MDS) are genetically diverse hematopoietic stem cell malignancies that share a common phenotype of cytological dysplasia, ineffective hematopoiesis and aberrant myeloid lineage maturation. Apoptotic cell death potentiated by inflammatory cytokines has been considered a fundamental feature of MDS for over two decades. However, this non-inflammatory form of cell death cannot account for the inflammatory nature of these disorders. We report that a hallmark of lower-risk …

Habitat Selection By The Northern Long-Eared Myotis (Myotis Septentrionalis) In The Midwestern United States: Life In A Shredded Farmscape, Jeremy A. White, Patricia Freeman, Cliff A. Lemen

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Populations of the Northern Long-Eared Myotis (Myotis septentrionalis) have declined dramatically in recent years in eastern North America due to white-nose syndrome. Although M. septentrionalis was once common in parts of eastern North America, few studies have examined habitat selection of this species in an agricultural landscape. We used acoustical methods to quantify bat activity and construct a habitat model of M. septentrionalis in an intensively farmed area in the Midwestern United States, where mortality from white-nose syndrome has not yet been observed. Our study confirms that M. septentrionalis prefers forest and avoids open habitats in this agricultural …

Tsu Faculty Research Database-Jan 2017, David Owerbach

Office of Research Institutional Research and Scholarship

Research interests and selected publications from 230 Texas Southern University faculty have been updated in Jan 2017. Faculty from Public Affairs, the College of Science, Engineering and Technology, the College of Pharmacy and Health Sciences, the College of Education, the College of Business, the College of Liberal Arts and Behavioral Sciences, the Law School and the School of Communications are included.

Seed Dormancy-Breaking In A Cold Desert Shrub In Relation To Sand Temperature And Moisture, Huiliang Liu, Buhailiqiemu Abudureheman, Lingwei Zhang, Jerry M. Baskin, Carol C. Baskin, Daoyuan Zhang

Biology Faculty Publications

Seasonal periodicity of seed germination and its relationship to seasonal changes in temperature and soil moisture have been well studied in seeds of species with physiological dormancy. However, relatively little information is available on the role of these environmental factors in controlling germination of seeds with physical dormancy (PY). Our primary aim was to determine if seeds of the cold desert sand dune semi-shrub Eremosparton songoricum exhibits seasonal periodicity of seed germination and the relationship between seed dormancy break and soil temperature and moisture. In the laboratory, seeds incubated on dry, wet, wet-dry and dry-wet sand were exposed to a …

Predicting Disease-Related Genes Using Integrated Biomedical Networks, Jiajie Peng, Kun Bai, Xuequn Shang, Guohua Wang, Hansheng Xue, Shuilin Jin, Liang Cheng, Yadong Wang, Jin Chen

Institute for Biomedical Informatics Faculty Publications

Background: Identifying the genes associated to human diseases is crucial for disease diagnosis and drug design. Computational approaches, esp. the network-based approaches, have been recently developed to identify disease-related genes effectively from the existing biomedical networks. Meanwhile, the advance in biotechnology enables researchers to produce multi-omics data, enriching our understanding on human diseases, and revealing the complex relationships between genes and diseases. However, none of the existing computational approaches is able to integrate the huge amount of omics data into a weighted integrated network and utilize it to enhance disease related gene discovery.

Results: We propose a new network-based disease …

Staph Bacteria From First Breath The Interweaving Of The Nasal Microbiome With The Intricate And Complex Nose, Alan L. Gillen

Faculty Publications and Presentations

Many microbes live in a mutualistic relationship with the human body, make up the human microbiome, and play a role in our health by stimulating and modulating the immune system. Man’s body is “covered” both inside and outside with millions of microbes that play a role in maintaining normal bodily functions and sustaining life in our changing world. The inner nose in the human body is colonized by millions of microbes during the first week of life. This internal colonization of the upper respiratory system is termed our nasal microbiome. Though we cannot see it, this microbiome is important for …

Translational Models For Vascular Cognitive Impairment: A Review Including Larger Species, Atticus H. Hainsworth, Stuart M. Allan, Johannes Boltze, Catriona Cunningham, Chad Farris, Elizabeth Head, Masafumi Ihara, Jeremy D. Isaacs, Raj N. Kalaria, Saskia A. M. J. Lesnik Oberstein, Mark B. Moss, Björn Nitzsche, Gary A. Rosenberg, Julie W. Rutten, Melita Salkovic-Petrisic, Aron M. Troen

Pharmacology and Nutritional Sciences Faculty Publications

Background: Disease models are useful for prospective studies of pathology, identification of molecular and cellular mechanisms, pre-clinical testing of interventions, and validation of clinical biomarkers. Here, we review animal models relevant to vascular cognitive impairment (VCI). A synopsis of each model was initially presented by expert practitioners. Synopses were refined by the authors, and subsequently by the scientific committee of a recent conference (International Conference on Vascular Dementia 2015). Only peer-reviewed sources were cited.

Methods: We included models that mimic VCI-related brain lesions (white matter hypoperfusion injury, focal ischaemia, cerebral amyloid angiopathy) or reproduce VCI risk factors (old age, hypertension, …

The Subject Librarian Newsletter, Biology, Spring 2017, Sandy Avila

Libraries' Newsletters

No abstract provided.

Calopogon Pulchellus R. Br., Edgar Nelson Transeau

Specimens by Name

No abstract provided.