scholarly journals NUCLEAR IMAGES OF CELLS IN DIFFERENT FUNCTIONAL STATES

1974 ◽  
Vol 22 (7) ◽  
pp. 569-576 ◽  
Author(s):  
G. KIEFER ◽  
R. KIEFER ◽  
G. W. MOORE ◽  
R. SALM ◽  
W. SANDRITTER
Keyword(s):  
Deoxyribonucleic Acid ◽  
Electronic Computer ◽  
Condensed State ◽  
Semithin Sections ◽  
Functional States ◽  
Degree Of Condensation ◽  
And Behavior ◽  
Selection Of Descriptors ◽  
Insight Into ◽  
Selection Of

To gain further insight into the supramolecular structure and behavior of chromatin, a set of parameters has been developed for the description of cell nuclear images. These images are obtained from Feulgen-stained nuclei in semithin sections. Data are extracted by a scanning microphotometer, printed on paper tape and processed by an electronic computer. The essential principles for the selection of descriptors were that: (a) they should correspond to characteristics that are employed in classical morphology and (b) they should be subject to interpretation in categories of biochemistry or molecular biology insofar as possible. Some of these parameters deal with the size and shape of the nucleus and its deoxyribonucleic acid content or staining behavior. Efforts were made to determine the relative amount of chromatin in the condensed state, because it may be assumed that the degree of condensation correlates with the activity of the chromatin. To demonstrate the power of the method, results from methylthiouracil-activated thyroid nuclei are presented. In stimulated nuclei the diffuse chromatin expands and fills the increasing nuclear volume, while the condensed chromatin retains its degree of condensation, and, probably, does not change in amount.

An Insight into Oligopeptide Transporter 3 (OPT3) family proteins

2020 ◽  
Vol 27 ◽  
Author(s):  
Fırat Kurt
Keyword(s):  
Stress Responses ◽  
Chelating Agent ◽  
Biological Processes ◽  
Biotic And Abiotic Stress ◽  
Oligopeptide Transporter ◽  
Binding Residues ◽  
Fe Homeostasis ◽  
Proteins Interactions ◽  
Insight Into ◽  
Selection Of

: Oligopeptide transporter 3 (OPT3) proteins are one of the subsets of OPT clade, yet little is known about these transporters. Therefore, homolog OPT3 proteins in several plant species were investigated and characterized using bioinformatical tools. Motif and co-expression analyses showed that OPT3 proteins may be involved in both biotic and abiotic stress responses as well as growth and developmental processes. AtOPT3 usually seemed to take part in Fe homeostasis whereas ZmOPT3 putatively interacted with proteins involved in various biological processes from plant defense system to stress responses. Glutathione (GSH), as a putative alternative chelating agent, was used in the AtOPT3 and ZmOPT3 docking analyses to identify their putative binding residues. The information given in this study will contribute to the understanding of OPT3 proteins’ interactions in various pathways and to the selection of potential ligands for OPT3s.

scholarly journals Functional Food—Consumer Motivations and Expectations

2021 ◽  
Vol 18 (10) ◽  
pp. 5327
Author(s):  
Kinga Topolska ◽  
Adam Florkiewicz ◽  
Agnieszka Filipiak-Florkiewicz
Keyword(s):  
Functional Food ◽  
Consumer Attitudes ◽  
Evidence Based ◽  
Nutritional Knowledge ◽  
Future Perspectives ◽  
Research Papers ◽  
Adequate Knowledge ◽  
Food Market ◽  
And Behavior ◽  
Insight Into

This review provides insight into consumer attitudes toward functional food (FF), with the purpose of better understanding the needs and behavior regarding this kind of product. A total of 47 articles were selected for this paper. The available studies from last 20 years differ according to the focus (awareness, attitudes, motivations, willingness, acceptance by consumers) and methodologies used. Several factors, including socio-demographic, cognitive and attitudinal ones, seem to be serve as the basis for the acceptance of functional products. The research papers showed that nutritional knowledge is the most important of these. Older people are more interested in functional products than younger consumers, because of their stronger belief in the health benefits of FF. Moreover, women are more open to compromise between taste and health properties. Claims concerning the disease preventative properties of FF are the most attractive for consumers. This review focuses also on future perspectives for the functional food market. Adequate knowledge and evidence-based communication seem to be the most promising ways to increase consumers’ interest in these kinds of products.

scholarly journals To sext or not to sext. The role of social-cognitive processes in the decision to engage in sexting

2021 ◽  
Vol 38 (4) ◽  
pp. 1410-1429
Author(s):  
Claire Wilson ◽  
Tommy van Steen ◽  
Christabel Akinyode ◽  
Zara P. Brodie ◽  
Graham G. Scott
Keyword(s):  
Cognitive Processes ◽  
Self Efficacy ◽  
Social Cognitive ◽  
Cognitive Factors ◽  
Relationship Status ◽  
Injunctive Norm ◽  
The Social ◽  
And Behavior ◽  
Insight Into

Technology has given rise to online behaviors such as sexting. It is important that we examine predictors of such behavior in order to understand who is more likely to sext and thus inform intervention aimed at sexting awareness. We used the Theory of Planned Behavior (TPB) to examine sexting beliefs and behavior. Participants (n = 418; 70.3% women) completed questionnaires assessing attitudes (instrumental and affective), subjective norms (injunctive and descriptive), control perceptions (self-efficacy and controllability) and intentions toward sexting. Specific sexting beliefs (fun/carefree beliefs, perceived risks and relational expectations) were also measured and sexting behavior reported. Relationship status, instrumental attitude, injunctive norm, descriptive norm and self-efficacy were associated with sexting intentions. Relationship status, intentions and self-efficacy related to sexting behavior. Results provide insight into the social-cognitive factors related to individuals’ sexting behavior and bring us closer to understanding what beliefs predict the behavior.

Exact analysis of the bending of wide beams by a modified elastica approach

2011 ◽  
Vol 225 (11) ◽  
pp. 2759-2764 ◽  
Author(s):  
L F Campanile ◽  
R Jähne ◽  
A Hasse
Keyword(s):  
Finite Element ◽  
Substantial Reduction ◽  
Short Review ◽  
Computational Effort ◽  
Two Dimensional ◽  
Finite Element Calculations ◽  
Dimensional Finite Element ◽  
Wide Beams ◽  
Insight Into ◽  
Selection Of

Classical beam models do not account for partial restraint of anticlastic bending and are therefore inherently inaccurate. This article proposes a modification of the exact Bernoulli–Euler equation which allows for an exact prediction of the beam's deflection without the need of two-dimensional finite element calculations. This approach offers a substantial reduction in the computational effort, especially when coupled with a fast-solving schema like the circle-arc method. Besides the description of the new method and its validation, this article offers an insight into the somewhat disregarded topic of anticlastic bending by a short review of the published theories and a selection of representative numerical results.

Design and topological optimization of rear pressure bulkhead for a typical aircraft

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Marshal Thakran ◽  
Meenakshi ◽  
Jitender Sharma ◽  
Charles Gilbert Martin
Keyword(s):  
Numerical Analysis ◽  
Significant Influence ◽  
Design Methodology ◽  
Structural Integrity ◽  
Topological Optimization ◽  
Content Type ◽  
Iterative Design ◽  
Practical Implications ◽  
Insight Into ◽  
Selection Of

Purpose The purpose of this paper is to evaluate the model of a rear pressure bulkhead with different design optimizations to meet the pressurized cabin requirements of an aircraft. Design/methodology/approach This paper presents the results of the static analysis of a dome-shaped rear pressure bulkhead model designed in Catia-v5. Numerical analysis of model meshed in hyper-mesh and solved using Opti-Struct for iterative design optimizations. Findings All the iterative models are analyzed at 9 Psi. Rear pressure bulkhead designed with L-section stringer shows better results than the model optimized with T-section stringer for the same thickness. The model optimized with L-shaped stinger also reduces the weight of the bulkhead without affecting the structural integrity. Practical implications It has been concluded in this paper that the selection of specific shapes of the stringers shows a significant influence on weight reduction. Originality/value This paper provides a topical, technical insight into the design and development of a rear pressure bulkhead. It also outlines the future development of dome-shaped rear pressure bulkhead.

Paradata in Documentation Standards and Recommendations for Digital Archaeological Visualisations

2020 ◽  
Vol 6 (2) ◽  
pp. 191-220
Author(s):  
Lisa Börjesson ◽  
Olle Sköld ◽  
Isto Huvila
Keyword(s):  
Research Data ◽  
Data Reuse ◽  
Lack Of Information ◽  
National Heritage ◽  
Processing History ◽  
International Harmonisation ◽  
Insight Into ◽  
Current Standards ◽  
Selection Of ◽  
As If

Abstract Digitalisation of research data and massive efforts to make it findable, accessible, interoperable, and reusable has revealed that in addition to an eventual lack of description of the data itself (metadata), data reuse is often obstructed by the lack of information about the datamaking and interpretation (i.e. paradata). In search of the extent and composition of categories for describing processes, this article reviews a selection of standards and recommendations frequently referred to as useful for documenting archaeological visualisations. It provides insight into 1) how current standards can be employed to document provenance and processing history (i.e. paradata), and 2) what aspects of the processing history can be made transparent using current standards and which aspects are pushed back or hidden. The findings show that processes are often either completely absent or only partially addressed in the standards. However, instead of criticising standards for bias and omissions as if a perfect description of everything would be attainable, the findings point to the need for a comprehensive consideration of the space a standard is operating in (e.g. national heritage administration or international harmonisation of data). When a standard is used in a specific space it makes particular processes, methods, or tools transparent. Given these premises, if the standard helps to document what needs to be documented (e.g. paradata), and if it provides a type of transparency required in a certain space, it is reasonable to deem the standard good enough for that purpose.

Digging deep? Digging more? A research on the influence of corporate CSR theme consistency strategy

2018 ◽  
Vol 1 (1) ◽  
pp. 76-93 ◽  
Author(s):  
Yang Zhang ◽  
Xuhui Wang ◽  
Yingying Shen
Keyword(s):  
Communication Channel ◽  
Information Dissemination ◽  
Focal Point ◽  
Social Programs ◽  
Business Practices ◽  
Content Type ◽  
Moderation Effect ◽  
Corporate Social ◽  
And Behavior ◽  
Selection Of

PurposeAs the focal point of both academic studies and business practices, the theme strategy of corporate social responsibility (CSR) arouses wide attention. However, extant studies concentrate more on the selection of the theme of CSR activities, such as the fitness between CSR activities and the core business, thus largely neglecting the consistency of the theme. The purpose of this paper is to determine whether the enterprise should adopt a consistent theme strategy or should participate in different social programs, and how do customers response to the lack of studies in different theme-consistent strategies.Design/methodology/approachIn this paper, two progressive experiments are performed. The purpose of study 1 is to examine the influence of theme consistency on consumers’ CSR association and how consumers’ attribution to corporation motivation mediates such impacts. The purpose for study 2 is to examine whether information dissemination channels and cooperation with public organization could affect the influence of theme consistency strategy.FindingsThe significant influences of theme consistency on consumer CSR association was demonstrated, and consumer’s perceived motivation of CSR was found to play the mediation role. Moreover, the moderation effect of the communication channel of CSR information was found to be important to strengthen the influence of the theme-consistent strategy.Originality/valueThis paper not only demonstrates the influence of theme consistency, but also explains how theme consistency influences consumers’ attitude and behavior. It enriches the study on the antecedent variables of consumers’ attribution to corporate motivation.

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