scholarly journals Physiological factors influencing female fertility in birds

2021 ◽  
Vol 8 (7) ◽  
pp. 202274
Author(s):  
Katherine Assersohn ◽  
Patricia Brekke ◽  
Nicola Hemmings
Keyword(s):  
Female Infertility ◽  
Female Fertility ◽  
Future Research ◽  
Clear Understanding ◽  
Fertilization Failure ◽  
Wild Populations ◽  
Physiological Factors ◽  
Commercial Breeding ◽  
Reproductive Science ◽  
Fertility Traits

Fertility is fundamental to reproductive success, but not all copulation attempts result in a fertilized embryo. Fertilization failure is especially costly for females, but we still lack a clear understanding of the causes of variation in female fertility across taxa. Birds make a useful model system for fertility research, partly because their large eggs are easily studied outside of the female's body, but also because of the wealth of data available on the reproductive productivity of commercial birds. Here, we review the factors contributing to female infertility in birds, providing evidence that female fertility traits are understudied relative to male fertility traits, and that avian fertility research has been dominated by studies focused on Galliformes and captive (relative to wild) populations. We then discuss the key stages of the female reproductive cycle where fertility may be compromised, and make recommendations for future research. We particularly emphasize that studies must differentiate between infertility and embryo mortality as causes of hatching failure, and that non-breeding individuals should be monitored more routinely where possible. This review lays the groundwork for developing a clearer understanding of the causes of female infertility, with important consequences for multiple fields including reproductive science, conservation and commercial breeding.

scholarly journals Consumer Neuroscience Techniques in Advertising Research: A Bibliometric Citation Analysis

2021 ◽  
Vol 13 (3) ◽  
pp. 1589
Author(s):  
Juan Sánchez-Fernández ◽  
Luis-Alberto Casado-Aranda ◽  
Ana-Belén Bastidas-Manzano
Keyword(s):  
Self Report ◽  
Future Research ◽  
Complex Nature ◽  
Clear Understanding ◽  
Continuous Growth ◽  
Main Research ◽  
Consumer Neuroscience ◽  
Starting Point ◽  
Wide Range ◽  
Performance Analysis Tools

The limitations of self-report techniques (i.e., questionnaires or surveys) in measuring consumer response to advertising stimuli have necessitated more objective and accurate tools from the fields of neuroscience and psychology for the study of consumer behavior, resulting in the creation of consumer neuroscience. This recent marketing sub-field stems from a wide range of disciplines and applies multiple types of techniques to diverse advertising subdomains (e.g., advertising constructs, media elements, or prediction strategies). Due to its complex nature and continuous growth, this area of research calls for a clear understanding of its evolution, current scope, and potential domains in the field of advertising. Thus, this current research is among the first to apply a bibliometric approach to clarify the main research streams analyzing advertising persuasion using neuroimaging. Particularly, this paper combines a comprehensive review with performance analysis tools of 203 papers published between 1986 and 2019 in outlets indexed by the ISI Web of Science database. Our findings describe the research tools, journals, and themes that are worth considering in future research. The current study also provides an agenda for future research and therefore constitutes a starting point for advertising academics and professionals intending to use neuroimaging techniques.

scholarly journals Application of the Socio-Ecological System Framework to Forest Fire Risk Management: A Systematic Literature Review

2021 ◽  
Vol 13 (4) ◽  
pp. 2121 ◽  
Author(s):  
Ingrid Vigna ◽  
Angelo Besana ◽  
Elena Comino ◽  
Alessandro Pezzoli
Keyword(s):  
Risk Management ◽  
Community Involvement ◽  
Forest Ecosystems ◽  
Local Community ◽  
Fire Risk ◽  
Future Research ◽  
Specific Reference ◽  
Clear Understanding ◽  
Wildfire Risk ◽  
Starting Point

Although increasing concern about climate change has raised awareness of the fundamental role of forest ecosystems, forests are threatened by human-induced impacts worldwide. Among them, wildfire risk is clearly the result of the interaction between human activities, ecological domains, and climate. However, a clear understanding of these interactions is still needed both at the global and local levels. Numerous studies have proven the validity of the socioecological system (SES) approach in addressing this kind of interdisciplinary issue. Therefore, a systematic review of the existing literature on the application of SES frameworks to forest ecosystems is carried out, with a specific focus on wildfire risk management. The results demonstrate the existence of different methodological approaches that can be grouped into seven main categories, which range from qualitative analysis to quantitative spatially explicit investigations. The strengths and limitations of the approaches are discussed, with a specific reference to the geographical setting of the works. The research suggests the importance of local community involvement and local knowledge consideration in wildfire risk management. This review provides a starting point for future research on forest SES and a supporting tool for the development of a sustainable wildfire risk adaptation and mitigation strategy.

The identity crisis of sustainable development

2014 ◽  
Vol 11 (1) ◽  
pp. 4-15 ◽  
Author(s):  
Catalin Ratiu ◽  
Beverlee B. Anderson
Keyword(s):  
Sustainable Development ◽  
Design Methodology ◽  
Identity Crisis ◽  
Primary Data ◽  
Future Research ◽  
Clear Understanding ◽  
Content Type ◽  
The Public ◽  
Larger Sample ◽  
Practical Implications

Purpose – There are many different conceptualizations to sustainable development and these different approaches may have led to confusion amongst the public. The purpose of this paper is to explore the identities of the term and how the confused identity may be leading to problems for sustainable development efforts. Design/methodology/approach – The design is exploratory, using both secondary and primary data to understand the different sustainable development concepts. Findings – There is no consistent understanding or use of the term “sustainable development” among various groups. Research limitations/implications – Future research should include a larger sample that is more representative of people from different backgrounds and geographical areas. Practical implications – The public is generally willing to support only projects that it understands. Without a clear understanding of sustainable development, the public will be less inclined to support these efforts. Originality/value – This study examines the perceptions and understandings of the term by the general public representing different generations.

scholarly journals Developing and Implementing a Conceptual Composite Materials Design Database

1993 ◽  
Author(s):  
William J. Rasdorf ◽  
Lisa K. Spainhour
Keyword(s):  
Composite Materials ◽  
Computer Technology ◽  
Data Model ◽  
Data Representation ◽  
Future Research ◽  
Clear Understanding ◽  
Analysis And Design ◽  
Problems And Solutions ◽  
Software Interfaces ◽  
Design Software

Abstract Researchers and materials engineers require a greater understanding of the problems and solutions that emerge when integrating composite materials data with computer technology so that utilitarian composite materials databases can be developed to effectively and efficiently support analysis and design software. Composite materials constitute a representational challenge due to their composition and use. However, this paper suggests that a conceptual composite material data model and application software interfaces must be developed to support the dissemination and use of composite materials data. This paper primarily serves to analyze several of the problems facing developers of composite materials databases, evolving from the complexity of the materials themselves and from the current lack of testing and data representation standards. Without a clear understanding of the scope and nature of these problems, there is no possibility of designing concise yet comprehensive composites data models, yet we feel that such an understanding is presently lacking. In addition, an effort is made to present possible solutions to these difficulties being suggested and/or implemented both by the authors and by other researchers in the field. Such an effort provides a firm foundation upon which future research may be based.

Reimaging the Routes to Resilience & Renewables in the CARICOM & OECS Caribbean

2021 ◽  
Vol 2 (2) ◽  
pp. 121-135
Author(s):  
Alana Malinde S.N. Lancaster
Keyword(s):  
Renewable Energy ◽  
Economic Cost ◽  
Energy Transition ◽  
Energy Sector ◽  
Small Island ◽  
Future Research ◽  
Clear Understanding ◽  
Energy Projects ◽  
Recent Developments ◽  
Imported Oil

The states of the CARICOM and OECS Caribbean are small island developing states (SIDS) which are exceedingly vulnerable to economic and ecological shocks. Examples of vulnerability are the economic cost of a heavy reliance on imported oil & gas resources, and the pernicious effects of climate change. A key strategy to mitigate these vulnerabilities is to invest in renewables, increase resilience, and effect an energy transition for the Region. However, research and data on renewable energy and resilience in the region is still evolving. Further, it has become apparent from stakeholder fora such as CREF and IRAC that there are certain fundamental elements which need to be understood and addressed before the Region can achieve a just energy transition. The first is a clear understanding of what resilience means for the Region's renewable energy sector. The second relates to financing options which incorporate elements of resilience into renewable energy projects. Thirdly, in the rebuilding from the COVID-19 pandemic, it is recognised that reimagining full gender equality in the energy sector will be key to sustainable and competitive development. This Article explores the recent developments to re-imaging the route to resilience and renewables in the CARICOM & OECS Caribbean through collaborative efforts at the regional level. It also sets out the next steps in these three fundamental areas and outlines the role for future research to support these regional initiatives.

scholarly journals Genetic parameters for female fertility and milk production traits in first-parity Czech Holstein cows

2012 ◽  
Vol 57 (No. 3) ◽  
pp. 108-114 ◽  
Author(s):  
V. Zink ◽  
J. Lassen ◽  
M. Štípková
Keyword(s):  
Milk Production ◽  
Genetic Parameters ◽  
Selection Index ◽  
Female Fertility ◽  
Holstein Cows ◽  
Production Traits ◽  
Milk Production Traits ◽  
Clear Trend ◽  
Genetic Potential ◽  
Fertility Traits

The aim of this study was to estimate genetic parameters for female fertility and production traits in first-parity Czech Holstein cows and to quantify the effect of using this information on the accuracy of a selection index in seven different scenarios. In order to estimate genetic (co)variance components, the DMU software running an AI-REML algorithm was used. The analyses were made using a series of bivariate animal models. The pedigree included 164 125 animals and it was set up using a pruned animal model design. The present study included the following female fertility traits for the first lactations: calving to the first insemination (CF), days open (DO), calving from the first to the last insemination (FL), and milk production traits: milk production (MLK), kg of fat (FAT), and kg of protein (PROT). The heritability for all the investigated fertility traits was low and close to 0. Moderate heritabilities for production traits ranging from 0.20 (MLK) to 0.23 (PROT) were estimated. The strongest unfavourable correlation was found between PROT and DO (0.49). Other estimated correlations between fertility traits and production traits were moderate, ranging from 0.26 to 0.41. The results of this study evidence that cows with the poorest genetic potential for reproductive performance are those having high genetic potential for milk production and milk components. The results also show that the number of days from calving to new pregnancy depends on the production level. Seven investigated scenarios using selection index theory show a clear trend for increasing accuracy when more fertility traits were added as well as when higher numbers of daughters with information on reproduction traits per sire were available.  

The needs of Muslim hotel customers: evidence from Russian guests

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Anna Shnyrkova ◽  
Marina Predvoditeleva
Keyword(s):  
Supply And Demand ◽  
Research Field ◽  
Hospitality Management ◽  
Future Research ◽  
Clear Understanding ◽  
Structured Interviews ◽  
Online Questionnaire ◽  
Content Type ◽  
Business Context ◽  
Hotel Managers

Purpose The purpose of this study is to identify Halal hotel attributes demanded by the Russian Muslim travelers. Following this, the study aims to investigate whether gender and types of travelers influence the demand for Halal hotel attributes. Design/methodology/approach Semi-structured interviews were conducted to localize the list of Halal hotel attributes for the Russian business context. A self-administrated online questionnaire was designed, distributed and collected from 191 Russian Muslim customers, who have stayed at Halal hotels in the past 12 months. Data analysis includes a t-test and analysis of variance. Findings The study revealed a list of Halal attributes demanded by Russian Muslim customers. Also, the findings indicate that the list of the attributes demonstrated the differences in the requested attributes between gender and types of travelers. Research limitations/implications The study came across three main limitations. The first was that the respondents surveyed were leisure tourists. Second, the majority of the respondents have university degrees. Third, the research sample is limited to approximately 200 respondents. This research primarily contributes to tourism and hospitality management, and consumer behavior literature, as this is the first study yielding insights on a new demographic: Russian Muslim tourists. Practical implications The study provides a clear understanding of the Halal hotel attributes demanded by Russian Muslims that can help hotel managers to accommodate the needs of this group while, at the same time, meeting the requirements of guests of different religions. Social implications The study contributes to improving social relationships within the Russian Federation as it improves society’s understanding of the life principles of Muslims. Originality/value This is the first study investigating the demand for Halal attributes by Russian Muslim tourists. By partly covering the empty research field on this topic, the study provides meaningful direction to future research of the Russian hotels’ Halal services from both supply and demand perspectives.

A new NLRP5 mutation causes female infertility and total fertilization failure

2020 ◽  
pp. 1-2
Author(s):  
Mingzhao Li ◽  
Miaomiao Jia ◽  
Xiaoli Zhao ◽  
Rong Shi ◽  
Xia Xue
Keyword(s):  
Female Infertility ◽  
Fertilization Failure ◽  
Total Fertilization Failure

scholarly journals A Critical Review of the Impact of Sarcoma on Psychosocial Wellbeing

Sarcoma ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
Lesley Storey ◽  
Lorna A. Fern ◽  
Ana Martins ◽  
Mary Wells ◽  
Lindsey Bennister ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Mental Health ◽  
Psychosocial Impact ◽  
Diagnosis And Treatment ◽  
Future Research ◽  
Clear Understanding ◽  
Psychosocial Wellbeing ◽  
Patient Reported ◽  
The Impact

Background. Previous reviews of outcomes in specific sarcoma populations suggest patients have poor quality of life. In most of these reviews, there is a predominant focus on physical function rather than psychosocial outcome. The aim of this review was to describe the psychosocial impact of diagnosis and treatment on patients with all types of sarcoma. Methods. Searches were conducted through six electronic databases for publications of any study design using a validated patient-reported outcome measure reporting the psychosocial impact in this population. Results. Eighty-two studies fulfilled the inclusion criteria. Most (65%) were assessed of being of reasonable quality. The most common aspect of psychosocial wellbeing measured was quality of life (80%). Due to the heterogeneity of methods, outcomes, and populations, it was not possible to make definitive conclusions. It seems there is an improvement in the physical aspects of quality of life over time but not in psychosocial function or mental health. There was no change in mental health scores, but patients reported an improvement in adjusting to normal life. There are no differences according to the type of surgery patients receive, and psychosocial outcomes tend to be poorer than the general population. There is no consistency in identifying the factors that predict/influence psychosocial wellbeing. Conclusion. The published literature does not provide a clear understanding of the impact of sarcoma diagnosis and treatment on psychosocial wellbeing. Instead, the review demonstrates a need for well-designed studies in this area and a more consistent approach to the measurement of patient-reported outcomes, which include psychosocial domains. Recommendations for future research have been proposed.

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