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... Premise of the study: Research on the subject of heterostyly is often traced back to 1877 when Charles Darwin published the landmark book The Different Forms of Flowers on Plants of the Same Species. This book synthesized heterostyly research at the time, much of which Darwin conducted, and it continues to be a major contribution to the study of the breeding system. In this book, Darwin discussed ...
... Both missionaries and government policymakers in colonial Zimbabwe consciously identified agriculture as an important avenue in establishing broader paradigms of explanation. Missionary promotion of new farming practices inevitably challenged the existing spiritual landscape by insisting that rationalized individual labor could overcome powerful natural forces. This article examines various facets ...
... Click Cu(I)-catalyzed polymerizations of diynes that contained ester linkages and diazides were performed to produce polyesters (click polyesters) of large molecular weights [(~1.0-7.0) x 10⁴], that contained main-chain 1,4-disubstitued triazoles in excellent yields. Incorporation of triazole improved the thermal properties and magnified the even-odd effect of the methylene chain length. We also f ...
... "Click" chemistry-based surface modification strategy was developed for PDMS microchips to enhance separation performance for both amino acids and proteins. Alkyne-PEG was synthesized by a conventional procedure and then "click" grafted to azido-PDMS. FTIR absorption by attenuated total reflection and contact angle measurements proved efficient grafting of alkyne-PEG onto PDMS surface. Manifest EO ...
mothers; Mexican Americans; cultural heritage; food choices; foodways; traditional foods; family relations; meals (menu)
Abstract:
... This paper offers a discussion of A Taco Testimony: Meditations on Family, Food, and Culture , the memoir by Chicana writer Denise Chávez. I argue that Chávez experiences the act of eating and preparing Mexican food as a critique of racism and as a way for her to assert her Mexicanidad or "Mexicanness." More importantly, it is her mother's food that instills Chávez with pride in her ethnic heritag ...
... We examine the importance of the maintenance and reinvention of tradition to the food choices described by Mexican-American focus group participants recruited from nutritional health settings in central Texas. The pressures experienced while coping with changes in their food environment, such as shift-work and working outside the home, and transformations experienced in the food production system, ...
education programs; extension education; surveys; testing; United States
Abstract:
... Evaluation is an essential component of any Extension education program. One tool, the pre- and post-test, provides measurable evaluation data. Yet often the answer "I don't know" or all possible answers to a multiple choice question are not included in the repeated measure analysis. Because more than two answers are offered, the test of marginal homogeneity repeated measure analysis should be use ...
... The fundamental changes of pre-industrial agriculture into “industrialized agricultural practices” on mini-plots within cities will be discussed, especially for vineyards on slopes / terraces. The areas under consideration are the west and south exposed right-hand river-side slopes of the Elbe river valley within the conurbation “Upper Elbe” between Pillnitz south of Dresden and Seusslitz north of ...
portion size; snacks; health beliefs; food quality; social environment; perceptions (cognitive)
Abstract:
... What determines whether a person perceives an eating occasion as a meal or snack? The answer may influence what and how much they eat on that occasion and over the remainder of the day. A survey of 122 participants indicated that they used food cues (such as the food quality, portion size, perceived healthfulness, and preparation time) as well as environmental cues (such as the presence of friends ...
acrylamides; ambient temperature; aqueous solutions; composite polymers; drug delivery systems; drugs; fluorescence; heat; hydrophobicity; light scattering; micelles; nuclear magnetic resonance spectroscopy; polymerization; scanning electron microscopy
Abstract:
... We report here a reversible self-assembly formation system using block copolymers with thermo-tunable properties. A series of double-responsive block copolymers, poly(N-isopropylacrylamide (NIPAAm))-block-poly(NIPAAm-co-N-(isobutoxymethyl)acrylamide (BMAAm)) with two lower critical solution temperatures were synthesized by one-pot atom transfer radical polymerization via sequential monomer additio ...
home food preparation; grocery stores; gender differences; socioeconomic status; cheeses; food choices; men; women; interpersonal relationships; United Kingdom
Abstract:
... The purpose of this article is to explore how friendships are "done" through processes of eating together formally within the British context, paying attention to how taste is displayed through food. Existing research on food consumption and social differentiation has in the main concentrated on eating out, but there is little research on entertaining inside the home. Based on qualitative intervie ...
... BACKGROUND: The present study was undertaken to determine the rate of occurrence of Human cytomegalovirus (HCMV) among kidney transplant recipients and donors by application of direct detection methods and to understand HCMV infection/disease development among transplanted patients as a prospective study. RESULTS: Peripheral blood samples collected from 76 kidney donors and 76 recipients from Sept ...
case studies; eggs; fetus; labor; mares; ostriches; posture; pregnancy
Abstract:
... A micturition problem appeared in an eight year-old mare at the third month of pregnancy. Symptoms intensified during the course of pregnancy and, at the end of the tenth month, the foetus was aborted. Labour was ordinary with normal presentation, position and posture, yet there was a formation about the size of an ostrich egg. The structure was spontaneously pushed out of the genital tract during ...
... The weaning time is a crucial period in the management of piglets. The risk of development of post-weaning diarrhoea (PWD) in piglets is high. PWD is the cause of serious economic losses in pig herds. Since 2006, the use of antibiotic growth promoters for prevention of diarrhoeal diseases in piglets has been banned. This measure also led to the investigation of alternative suitable feed supplement ...
Salmonella; chickens; feces; polyacrylamide gel electrophoresis; serotypes; sheep
Abstract:
... This study was carried out to determine the whole cell protein profiles of Salmonella serovars from chicken, turkey and sheep faeces by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). A total of 34 Salmonella strains were included in the study, 14 of them were isolated from chicken, 14 from turkey and six from sheep. SDS-PAGE was carried out using 12% (w/v) separating and 4% ...
... Avian tuberculosis was diagnosed in a captured female Ruppell's griffon vulture (Gyps ruppellii) with granulomatous splenitis and hepatitis. At necropsy, whitish to yellow nodules of various sizes were found in the spleen and liver, and fibrinous coelomitis was present in the body cavity. Histopathologically, the granulomas appeared to be typical of avian tuberculosis. In some granulomas, necrotic ...
... This paper presents a spreadsheet add-in for the design of mass flow conical and wedge hoppers. The Jenike's hopper design charts for mass flow were curve fitted. The relationships obtained were used together with other relevant expressions to develop an add-in tool for the determination of the pertinent hopper design parameters (exit size, mass flow rate, semi-included angle, flow factor, and cri ...