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101.
John H. Dupuis Lennie K.Y. Cheung Lenore Newman Derek R. Dee Rickey Y. Yada 《Comprehensive Reviews in Food Science and Food Safety》2023,22(2):882-912
Cellular agriculture is a rapidly emerging field, within which cultured meat has attracted the majority of media attention in recent years. An equally promising area of cellular agriculture, and one that has produced far more actual food ingredients that have been incorporated into commercially available products, is the use of cellular hosts to produce soluble proteins, herein referred to as precision cellular agriculture (PCAg). In PCAg, specific animal- or plant-sourced proteins are expressed recombinantly in unicellular hosts—the majority of which are yeast—and harvested for food use. The numerous advantages of PCAg over traditional agriculture, including a smaller carbon footprint and more consistent products, have led to extensive research on its utility. This review is the first to survey proteins currently being expressed using PCAg for food purposes. A growing number of viable expression hosts and recent advances for increased protein yields and process optimization have led to its application for producing milk, egg, and muscle proteins; plant hemoglobin; sweet-tasting plant proteins; and ice-binding proteins. Current knowledge gaps present research opportunities for optimizing expression hosts, tailoring posttranslational modifications, and expanding the scope of proteins produced. Considerations for the expansion of PCAg and its implications on food regulation, society, ethics, and the environment are also discussed. Considering the current trajectory of PCAg, food proteins from any biological source can likely be expressed recombinantly and used as purified food ingredients to create novel and tailored food products. 相似文献
102.
Mona H. Mohamed Islam Elzeny Joshua Samuel Wenqian Xu Christos D Malliakas Yoosuf N. Picard Tony Pham Lenore Miller Adam Hogan Brian Space David Hopkinson Sameh K. Elsaidi 《Advanced functional materials》2024,34(19):2312280
Metal–organic frameworks (MOFs) can efficiently purify hydrocarbons from CO2, but their rapid saturation, driven by preferential hydrocarbon adsorption, requires energy-intensive adsorption–desorption processes. To address these challenges, an innovative approach is developed, enabling control over MOF flexibility through densification and defect engineering, resulting in an intriguing inverse CO2/C2 hydrocarbon selectivity. In this study, the densification process induces the shearing of the crystal lattice and contraction of pores in a defective CuBTC MOF. These changes have led to a remarkable transformation in selectivity, where the originally hydrocarbon-selective CuBTC MOF becomes CO2-selective. The selectivity values for densified CuBTC are significantly reversed when compared to its powder form, with notable improvements observed in CO2/C2H6 (4416 vs 0.61), CO2/C2H4 (15 vs 0.28), and CO2/C2H2 (4 vs 0.2). The densified material shows impressive separation, regeneration, and recyclability during dynamic breakthrough experiments with complex quinary gas mixtures. Simulation studies indicate faster CO2 passage through the tetragonal structure of densified CuBTC compared to C2H2. Experimental kinetic diffusion studies confirm accelerated CO2 diffusion over hydrocarbons in the densified MOF, attributed to its small pore window and minimal interparticle voids. This research introduces a promising strategy for refining existing and future MOF materials, enhancing their separation performance. 相似文献
103.
Langs Robert J.; Bucci Wilma; Udoff Andrea L.; Cramer Gail; Thomson Lenore 《Canadian Metallurgical Quarterly》1993,10(1):1
Explores the relation between 2 quantitative measures of unconscious communication: (1) referential activity, which emerged from the dual-coding model of mental representation, and (2) newness of themes and extent of narrative/imagery, first identified as bearers of derivative material in the communicative approach to psychotherapy. The measures are applied to data from 2 female patients, each of whom was seen separately by 3 out of a group of 6 psychoanalysts in videotaped consultation interviews. Findings include significant correlations between referential activity and both newness of themes and extent of narrative/imagery. Newness of themes and extent of narrative/imagery also correlated significantly with each other. Scores on the measures tended to be lowest with the analysts who spoke most often. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
104.
Attempted to provide a tool that could be used by preschool teachers and child-care workers to identify children who show symptoms that may suggest emotional disturbance. A modification of Rutter's Children's Behaviour Questionnaire was standardized on a sample of 496 normal and 102 emotionally disturbed preschool children. The modified questionnaire (renamed the Preschool Behavior Questionnaire) was found to possess criterion validity and high interrater and test-retest reliabilities. 3 factors were extracted and were labeled Hostile-Aggressive, Anxious-Fearful, and Hyperactive-Distractible. Data indicate that the Preschool Behavior Questionnaire may be valuable in either clinical or research settings for the first step in early detection of emotional problems. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
105.
Cotton fabric containing a large number of neps was dyed with each of 17 azo direct dyes. Visible coverage of neps composed of immature fibres varied widely among the dyes. An evaluation of those structural characteristics of the dyes that might account for their differential ability to achieve coverage of neps was undertaken. Direct dyes containing more than one amino or amido group in their structure were found most likely to achieve relatively good nep coverage. Scanning electron micrographs revealed considerable variation in the types of fibres making up the individual neps in a single piece of cotton fabric. Differences in direct dye behaviour towards nep coverage were most evident with those neps composed of immature fibres with some secondary wall development. 相似文献
106.
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108.
Thompson Suzanne C.; Sobolew-Shubin Alexandria; Galbraith Michael E.; Schwankovsky Lenore; Cruzen Dana 《Canadian Metallurgical Quarterly》1993,64(2):293
Three questions about the role of perceived control in coping with a major life stressor were addressed in a sample of 71 cancer patients. As expected, those with greater perceptions of control were less depressed, even when physical functioning, marital satisfaction, and negative affectivity were controlled for. Consistent with a compensatory model of control, it was more important for patients to believe that they could control daily emotional reactions and physical symptoms than the course of the disease. Patients who endorsed irrational beliefs had lower overall perceptions of control. The results indicated that even patients who were physically or psychosocially worse off were better adjusted if they had higher perceptions of control. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
109.
Examines how sex role biases contribute to the origins of spousal violence, compound its psychological effects, and interfere with effective treatment for battered women. Issues that commonly arise during psychotherapy with battered women and their batterers are discussed, such as self-esteem, denial, manipulation, body integration and sexuality, and familial relationships. Clinical impressions are supported with preliminary results of data collected from 400 battered women. Suggestions are made for implementing effective, nonsexist treatment programs with preventive, secondary, and tertiary strategies. (18 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
110.