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Injectivity and projectivity in analysis and topology

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science China Mathematics 2011年第11期54卷 2347-2359页

作者： HADWIN Don PAULsEN vern I Department of Mathematics University of New Hampshire Durham NH 03824 USA Department of Mathematics University of Houston Houston TX 77204-3008 USA

We give new proofs of many injectivity results in analysis that make more careful use of the duality between abelian C*-algebras and topological spaces. We then extend many of these ideas to incorporate the case of a group action. This approach gives new insight into Hamana's theory of G-injective operator spaces and G-injective envelopes. Our new proofs of these classic results, use only topological methods and eliminate the need for results from the theory of Boolean algebras and AW*-algebras.

关键词： injective multipliers operator space Banach-stone

subcutaneous fatty acid composition of steers finished as weanlings or yearlings with and without growth promotants

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Journal of Animal science and Biotechnology 2014年第1期5卷 98-105页

作者： Cletos Mapiye Tyler D Turner John A Basarab vern s Baron Jennifer L Aalhus Michael ER Dugan Agriculture and Agri-Food Canada Lacombe Research Centre 6000 C & E Trail Lacombe Alberta T4L 1 W1 Canada Alberta Agriculture and Rural Development Lacombe Research Centre 6000 C & E Trail Lacombe Alberta T4L 1 W1 Canada

Background： The current study evaluated the subcutaneous fatty acid （FA） composition of calf- and yearling-fed steer with or without growth promoting implants. Crossbred steers （n = 112; 267 ± 5.0 kg） of the same contemporary group were allocated to one of four production system and implant strategy based treatments in a completely randomized design with a 2 × 2 factorial arrangement of treatments. Results： There were no interactions （P 〉 0.05） between production systems and growth promoting implants for the total and individual subcutaneous FA. Yearling as opposed to calf finishing reduced （P 〈 0.05） subcutaneous proportions of C20：3n-6, trans （t）l 2-18：1, C14：0, several minor cis-monounsaturated FA （c-MUFA; c9-14：1, c11-16：1, cl 1-18：1, cl 2-18：1, cl 3-18：1, c9-20：1 and cl 1-20：1）, and increased （P 〈 0.05） subcutaneous proportions of tl 1 cl 5-18：2, total and individual branched-chain FA. subcutaneous fat from steers implanted with growth promotants had higher （P 〈 0.05） proportions of total polyunsaturated FA （PUFA）, total n-6 PUFA, C18：2n-6 and individual t-18：1 isomers （t6 to tl0） compared to non-implanted steers. Conclusions： Overall, current findings show that production systems and growth promotants led to only minor differences in subcutaneous FA composition of beef steers.

关键词： Age at feedlot entry Beef Fatty acids Growth implant steers

Antithrombin in the treatment of burn trauma

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World Journal of Critical Care Medicine 2016年第1期5卷 17-26页

作者： Areta Kowal-vern Bruce A Orkin Department of General surgery Rush University Medical Center

Antithrombin(AT) is a natural anticoagulant with antiinflammatory properties that has demonstrated value in sepsis, disseminated intravascular coagulation and in burn and inhalation injury. With high doses, AT maydecrease blood loss during eschar excision, reducing blood transfusion requirements. There are no human randomized, placebo-controlled studies, which have tested the true benefit of this agent in these conditions. Two main forms of AT are either plasma-derived AT(ph AT) and recombinant AT(rh AT). Major ovine studies in burn and smoke inhalation injury have utilized rh AT. There have been no studies which have either translated the basic rh AT research in burn trauma, or determined the tolerance and pharmacokinetics of rh AT concentrate infusions in burn patients. Advantages of rh AT infusions are no risk of blood borne diseases and lower cost. However, the majority of human burn patient studies have been conducted utilizing ph AT. Recent Japanese clinical trials have started using ph AT in abdominal sepsis successfully. This review examines the properties of both ph AT and rh AT, and analyzes studies in which they have been utilized. We believe that it is time to embark on a randomized placebo-controlled multi-center trial to establish the role of AT in both civilian and military patients with burn trauma.

关键词： Antithrombin Burn trauma Burn injury Inhalation injury Recombinant antithrombin

Necrotizing soft Tissue Infections of the Male and Female Breast: A Literature Review

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surgical science 2021年第7期12卷 236-260页

作者： Areta Kowal-vern Daniela Cocco Marc R. Matthews The Arizona Burn Center Phoenix USA Research Department Valleywise Health Medical Center Phoenix USA Breast surgical services Department of Surgery Valleywise Health Medical Center Phoenix USA Department of surgery Valleywise Health Medical Center Phoenix USA

Background: Within the spectrum of necrotizing soft tissue infections (NsTI), necrotizing fasciitis (NF) has been characterized by tissue and fascial necrosis with systemic toxicity. The objective was to determine and... 详细信息

strong>Background:strong> Within the spectrum of necrotizing soft tissue infections (NsTI), necrotizing fasciitis (NF) has been characterized by tissue and fascial necrosis with systemic toxicity. The objective was to determine and summarize the frequency and characteristics of breast NF and NsTI in the literature. strong>Methods:strong> Cases were obtained through PubMed, Google scholar, Google, and from published article reference sections. One hundred twenty-three cases were gleaned from 96 articles that reported NF and NsTI of the breast (1924 through 2021). strong>Results:strong> NF was reported in 70 and NsTI in 53 cases (111 women and 12 men). Patients presented with swollen, painful breasts, erythema, bullae, crepitus, necrosis, gangrene, fever, tachycardia, and neutrophilia. Fifty-nine of 123 (48.4%) patients were septic on admission. The most frequent microorganisms were β hemolytic Group A streptococcus, and staphylococcus aureus. Treatment consisted of antibiotics, mastectomy and debridement with flaps, skin grafts or primary and secondary closure. Forty-four (63.0%) of the NF cases had chest wall involvement;of these, 18 (14.6%) involved the breast secondarily, P s (9.8%): eleven (9.0%) with NF and one (0.8%) with NsTI, P = 0.007. strong>Conclusions:strong> Men and women with breast NF and NsTI presented with similar signs and symptoms and required the same emergent treatment as provided for NF and NsTI of the more common sites. As a time-sensitive disease, patients treated within 12 hours of admission had a better survival. Patients with NF were more likely to have sepsis on admission, a higher mortality, and fascial chest wall/muscle involvement than patients with NsTI.

关键词： Breast Necrotizing Fasciitis Necrotizing soft Tissue Infections Chest Wall Gangrene

“streets of Fire”revisited:contact burns

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Burns & Trauma 2019年第1期7卷 295-308页

作者： Areta Kowal-vern Marc R.Matthews Karen N.Richey Kathy Ruiz Michael Peck Arpana Jain Kevin N.Foster Arizona Burn Center Maricopa Medical CenterDepartment of SurgeryMaricopa Integrated Health System2601 E.Roosevelt StreetPhoenixArizona 85008USA Research Department Maricopa Integrated Health SystemPhoenixArizona 85008USA

Background:Pavement-street contact burns are *** study compared recent contact burns to those published in“Pavement temperature and burns:streets of Fire”in *** hypothesis was that there were a significantly increased number of pavement-street burns,as a result of increased ambient temperatures,and that motor vehicle crash(MVC)contact burns were less severe than pavements-street ***:This was a retrospective burn center registry study of naturally heated surface contact burns during May to september from 2016 to *** analyses were performed with one-way analysis of variance(ANOVA)and Maximum Likelihood chi-squared for age,percent of total burn surface area(%TBsA),treatment,hospitalization,comorbidities,hospital charges,mortality,ambient,and surface temperatures(pavement,asphalt,rocks).Results:In the 1995 study,median ambient temperatures were 106(range 100–113)°F compared to the 108(range 86–119)°F highest noon temperature in the current *** ambient temperature differences were recorded on days with pavement burn admissions compared to days without these *** were 225 pavement,27 MVC,15 road rash,and 103 other contact *** major injuries in the pavement group were due to being“down”(unknown reason),falls,and *** to the others,the pavement group was older,56+years,psmaller burns but similar length of *** percent of the 225 pavement group patients with full-thickness burns required skin *** were 13(6%)fatalities in the pavement group vs 1(4%)in the MVC group,p=*** were secondary to sepsis,shock,cardiac,respiratory,or kidney *** to survivors,the non-survivors had a significantly higher%TBsA(10%vs 4%),p=0.01,and lower Glasgow Coma scores(10 vs 15),p=***:There was a median 2°F increase in ambient temperature since *** increase in pavement burn admissions was multi-factorial:higher temperatures,population,and the number of old

关键词： Pavement Concrete Asphalt Contact burns Road rash streets Highways sand Rocks

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小型电动机制造进展与趋向(一)

微特电机 1989年第1期17卷 12-13,23页

作者： vern Rode Jim Moody

本文是美国环球公司特约稿。现先载第一部份,介绍单相交流串励电动机的电枢装配自动化、几种绕组式样和定子装配自动化。下期刊载第二部分,叙述进展、趋向和质量控制。

关键词：串励电动机制造

Blue and Grey Water Footprints of Dairy Farms in Kuwait

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Journal of Water Resource and Protection 2020年第7期12卷 618-635页

作者： Mariam Al-Bahouh vern Osborne Tom Wright Mike Dixon Robert Gordon Kuwait Institute for scientific Research Shuwaikh Safat Kuwait Controlled Environment systems Research Facility School of Environmental Science University of Guelph Guelph Ontario Canada Department of Animal Biosciences University of Guelph Ontario Canada school of the Environment University of Windsor Windsor Ontario Canada

In Kuwait, dairy farming faces challenges due to its significant water demands. The current study assessed seasonal patterns of water use to estimate the blue water footprint (WF) and grey WF per kg of fat protein corrected milk (FPCM) for confined dairy farming systems in Kuwait. Blue and grey WFs were evaluated using data from three operational farms. The average blue WF (L·kgsup>-1sup> FPCM) was estimated to be 54.5 ± 4.0 L·kgsup>-1sup> in summer and 19.2 ± 0.8 L·kgsup>-1sup> in winter. The average grey WF (generated from milk house wastewater) was assessed on bimonthly basis and determined based on its phosphate (PO4) concentration (82.2 ± 14.3 mg·Lsup>-1sup>) which is the most limiting factor to be 23.0 ± 9.0 L·kgsup>-1sup> FPCM dsup>-1sup>. The outcomes indicate that enhancing the performance of dairy cows and adopting alternative water management strategies can play a role in minimizing the impacts of confined dairy farming systems in Kuwait on water quality and quantity.

关键词： Kuwait Blue Water Footprint Grey Water Footprint Fat Protein Corrected Milk Dairy Farming system

Genetic variations of Chrysomya megacephala populations in Malaysia (Diptera: Calliphoridae)

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Advances in Entomology 2014年第1期2卷 49-56页

作者： Yi vern Chong Tock H. Chua Beng Kah song school of Medicine Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysi school of science Monash University Bandar Sunway Selangor Malaysia

samples of Chrysomya megacephala were collected from five sites in Malaysia, namely Penang, selangor, Pahang, Johor, and sabah. Molecular analysis was conducted using the cytochrome oxidase gene and IssR-PCR to identify polymorphic markers for distinguishing the populations and to estimate the genetic relatedness among these populations. Two sNPs were detected at sequence position 952 (M1) and 1120 (M2), involving transitional substitutions with cytosine (C) being replaced with thymine (T) and guanine (G) replaced with adenine (A), but there was no amino acid variation. Penang and selangor shared the same nucleotide T at the M1 position, while M2 variation was found in Pahang population only. The NJ tree based on the COI sequence showed two main groups with branch A comprised of Penang and selangor populations while branch B consisted of Johor, Pahang and sabah populations. IssR analysis indicated that 18 scorable bands (size 200 to 1800 bp) were amplified with UBC808 and UBC835, 11 bands of which were polymorphic and the rest monomorphic. sabah population was left out for further analysis due to small number of specimens. UPGMA dendrogram using IssR data showed two branches, one consisted of Penang and selangor populations, while the other consisted of Pahang and Johor individuals. The polymorphic loci (P) for Johor Baru were 5.56%, Penang 16.70%, selangor and Pahang 22.2%. Nei’s H values are respectively 0.018, 0.060, 0.050 and 0.051. similarly the shannon index diversity values are respectively 0.028, 0.089, 0.085 and 0.087. The lowest genetic distance (0.0997) was between Penang and selangor populations, while the highest (0.613) was observed between Penang and Pahang populations. AMOVA shows low genetic differentiation among individuals within populations and that 85.6% of total genetic variance was among individuals between populations. This was also indicated by FsT statistic of 0.8562. The gene flow between populations was low with Nm of 0.042, and Mantel’s

关键词： Populations Genetics Chrysomya megacephala COI COII IssR Malaysia

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小型电动机制造进展与趋向(二)

微特电机 1989年第2期17卷 9-10页

作者： vern Rode Jim Moody 汪培德美国sTATOMAT-GLOBE INC.DAYTONOHIO

电动机装配设备是和电机设计相辅相成,同步发展的。很据市场调查和电机制造商的介绍,可以预计设备在下列设计要求以及与之相关方面的进展倾向。 (1)适合于提高效率、延长寿命的轻量小型电动机用的自动化装配设备; (2)保证制造过程中的... 详细信息

电动机装配设备是和电机设计相辅相成,同步发展的。很据市场调查和电机制造商的介绍,可以预计设备在下列设计要求以及与之相关方面的进展倾向。 (1)适合于提高效率、延长寿命的轻量小型电动机用的自动化装配设备; (2)保证制造过程中的产品质量,减少废品;

关键词：串励电动机制造