scholarly journals Infrared Thermography of the Mammary Gland in Sows with Regard to Health and Performance

Agriculture ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1013
Author(s):  
Stephan Rosengart ◽  
Bussarakam Chuppava ◽  
Dana Carina Schubert ◽  
Lea-Sophie Trost ◽  
Hubert Henne ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Infrared Thermography ◽  
Mammary Glands ◽  
Mean Value ◽  
Daily Weight Gain ◽  
Negative Effects ◽  
Score System ◽  
Rearing Conditions ◽  
And Performance ◽  
The Relationship

Monitoring of sows’ health is the key to preventing and controlling diseases in sows, and it guarantees optimal rearing conditions for piglets. The aim of this study was to investigate the relationship between the health status of sows shortly after parturition, and to analyze thermographic images of the mammary gland and the sows’ performance. Clinical examination of a total of 513 db.Viktoria hybrid sows was bundled individually using a modified score system. According to this, animals were divided into three health classes: healthy, clinically suspicious, and diseased. Simultaneously, the mammary glands were investigated by infrared thermography. Total born piglets (TBP), number of piglets born alive (NBA), and the daily weight gain of the piglets were significantly lower in the diseased group (p < 0.05). Regarding the results of the thermographic images of the mammary gland, significantly higher mean value of the warmest pixels was found in the diseased group (38.3 °C ± 0.57), while the significantly lowest value was reported in the healthy group (37.2 °C ± 0.54; p < 0.05). The results of this study show that thermography of the mammary gland at birth contains information that can help to identify diseased animals whose disease has negative effects on their piglets.

Komunikasi Organisasi, Stres Kerja dan Kinerja Karyawan: Dukungan Sosial Sebagai Variabel Moderasi

2019 ◽  
Vol 17 (1) ◽  
pp. 98
Author(s):  
Benita Ruth Ayu Rudianto
Keyword(s):  
Social Support ◽  
Organizational Communication ◽  
Job Stress ◽  
Employee Performance ◽  
Moderating Effect ◽  
Negative Effects ◽  
Good Communication ◽  
And Performance ◽  
Performance Results ◽  
The Relationship

Abstract This study examine moderating effect of social support on the relationship between organizational communication and employee performance and also between job stress and employee performance. Results show that social support modify the effect of organizational communication to jo stress. This indicates that family and colleagues support are able to create good communication and mitigate stressful negative effects. In addition, this study also examine moderating effect of job stress on the relatiionship between organizational communication and performance. Results show that job stress mediate the effect organizational communication on employee performance. Effective communication among employees lead to a lower level of stress and thus increase employee performance.. Abstrak Penelitian ini bertujuan untuk menguji pengaruh moderasi dukungan sosial pada hubungan komunikasi organisasi dan stres kerja serta efeknya terhadap kinerja karyawan. Hasil penelitian menunjukan bahwa terdapat pengaruh dukungan sosial sebagai moderator efek komunikasi organisasi terhadap stres kerja. Dukungan yang diterima dari keluarga maupun rekan kerja mampu menciptakan komunikasi yang baik dan dapat menghadapi stres yang dialami. Hasil penelitian ini juga menunjukan bahwa terdapat pengaruh stres kerja sebagai mediator efek komunikasi organisasi terhadap kinerja karyawan. Komunikasi yang berjalan baik antar karyawan pada lingkungan organisasi menyebabkan tingkat stres yang dihadapi karyawan dapat turun sehingga kinerja karyawan meningkat

Effects of team diversity on project performance in construction projects

2019 ◽  
Vol 26 (3) ◽  
pp. 408-423 ◽  
Author(s):  
Guangdong Wu ◽  
Xianbo Zhao ◽  
Jian Zuo ◽  
George Zillante
Keyword(s):  
Construction Projects ◽  
Project Performance ◽  
Project Teams ◽  
Mediating Effects ◽  
Negative Effects ◽  
Content Type ◽  
Team Diversity ◽  
Different Types ◽  
And Performance ◽  
The Relationship

Purpose The purpose of this paper is fourfold: first, to investigate the effect of team diversity on different types of conflicts; second, to determine if team diversity is significantly correlated with project performance; third, to investigate the mediating effect of project conflicts on the relationship between team diversity and project performance and fourth, to examine the relationship between different types of conflicts and project performance in construction projects. Design/methodology/approach A theoretical model was developed and a questionnaire survey was conducted with 246 professionals. The structural equation modeling technique was applied to analyze the data. Findings The results showed that: team diversity was positively associated with project performance; the introduction of conflicts significantly weakened the effect of diversity on performance; conflicts have both constructive and destructive effects on project performance; and team diversity affected project performance through the mediating effects of task conflict and relationship conflict, thus adding both positive and negative effects on performance. Research limitations/implications There are other factors which may affect conflicts and project performance such as communication, trust and contract. Future research could be conducted to determine the role of these variables in determining the effects of team diversity on performance. Practical implications It is necessary to reduce the relationship conflict whereas maintaining a “healthy” level of task conflict. In light of this, the conclusions of this study highlight practical implications as follows: project teams should attach importance to diverse partner selection and select cooperative partners whose value orientations are similar; when implementing a construction project, the structure of diverse project teams should keep relatively stable, avoiding too many teams entering or exiting the project in a short period; project teams should make greater efforts to deal with destructive conflicts via relational governance such as trust and communication. Originality/value This study contributes to the literature in three areas. First, this study investigated the dynamic mechanism between team diversity, conflicts and performance in construction projects. Second, this study contributes to the body of knowledge on validating the mediating effects of conflicts on the relationship between team diversity and performance. Third, this study validated the positive and negative effects of team diversity on performance with different types of conflicts as mediation variables in construction projects.

A meta-analytic examination of the relationship between family firm generational involvement and performance

2020 ◽  
Vol 43 (8) ◽  
pp. 971-987
Author(s):  
Vasiliki Kosmidou
Keyword(s):  
Firm Performance ◽  
Family Firms ◽  
Meta Analysis ◽  
Negative Relationship ◽  
Family Firm ◽  
Negative Effects ◽  
Content Type ◽  
Universal Family ◽  
And Performance ◽  
The Relationship

Purpose The purpose of this paper is to examine the relationship between family firm generational involvement and performance. Although researchers have studied this relationship extensively, a complete understanding of its true magnitude and sign is still lacking. Design/methodology/approach This meta-analysis sheds new light on this relationship, integrating the findings of 43 studies with 51 independent samples and 18,802 family firms. Findings The results reveal a small and negative relationship indicating that later-generation family firms perform worse compared to first-generation ones. The authors also show that the relationship is stronger for younger than older and for private than public firms. Finally, the measurements of both variables influence the relationship yielding critical research implications. Research limitations/implications This study suggests that future researchers examining the effects of generational involvement on family firm performance should conduct their analysis using multiple measures of both variables to ensure the accuracy of their results. It also highlights the need of family business scholars to converge to the use of a universal family firm definition, as findings differ significantly in strength and direction depending on which definition is used. Practical implications From a practitioners’ perspective, the findings imply that owners of young and private family firms should consider professionalizing and adopting a balanced top management team composition consisting of both family and non-family members as a way to mitigate the negative effects of “familiness” on performance. Originality/value This study empirically demonstrates the importance of adopting a generational perspective when examining differences in family firm performance.

scholarly journals The relationship between basal and luminal cytokeratins with histopathologic characteristics of canine mammary gland cancer

2016 ◽  
Vol 19 (2) ◽  
pp. 261-269
Author(s):  
D. Eivani ◽  
P. Mortazavi
Keyword(s):  
Mammary Gland ◽  
Prognostic Factor ◽  
Immunohistochemical Staining ◽  
Causes Of Death ◽  
Tumor Grade ◽  
Mammary Glands ◽  
Mammary Gland Cancer ◽  
The Relationship ◽  
Canine Mammary Gland ◽  
Hematoxylin Eosin

Abstract Neoplasia occurs mostly in mammary glands in female dogs and mammary gland cancer is one of the causes of death in these animals cytokeratins are one of the most important of tumor markers for identification of tumor prognosis. In this study, 120 canine malignant tumor samples of mammary glands were studied. From each sample, a section was taken for hematoxylin-eosin staining and two sections for immunohistochemical staining of markers CK5/6 and CK7. Histopathology slides was evaluated by light microscope. The results show that the presence of markers CK7 and CK5/6 had no significant relationship with tumor grade and type (p<0.05). However, it seems that unlike humans, CK5/6 and CK7 is not an independent prognostic factor in canine mammary gland tumors.

scholarly journals Impact of chronic heat stress on digestibility of nutrients and performance of meat type ducks

2017 ◽  
pp. 51-55
Author(s):  
Márta Horváth ◽  
László Babinszky
Keyword(s):  
Heat Stress ◽  
Treated Group ◽  
Feed Additives ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Negative Effects ◽  
Mineral Supplement ◽  
Growing Period ◽  
Antioxidant Defence System ◽  
And Performance

The aim of the study is to determine the effect of vitamin and mineral supplement under permanently high environmental temperature (30±1 °C) on the digestibility of nutrients, performance and furthermore the composition of duck meat in the growing period. A total of four hundred mixed sex 14 days old Cherry Valley type hybrid ducks were used for the study. Two experimental diets were formulated in the study (control and vitamin E, C and zinc supplemented diet). Based on the results the following conclusions were drown: the antioxidant defence system plays an important role in the reduction of heat stress generated lipid peroxidation process. Feed additives which have direct or indirect antioxidant effects can reduce the negative effects of heat stress on the ducks performance and meat composition. Digestibility of nutrients (Dry Matter, Crude Protein, Crude Fat) was not affected by antioxidant supplementation under chronic heat stress (30±1 °C). The performance was affected significantly by Vitamin C and E and zinc supplementation under heat stress (P<0.05). In the treated group the daily weight gain (dWG) increased and the feed conversion ratio (FCR) was improved significantly (P<0.05). The energy and protein conversion was decreased also significantly (P<0.05).

School System Size and Performance: A Contingency Perspective

1988 ◽  
Vol 10 (3) ◽  
pp. 237-249 ◽  
Author(s):  
Noah E. Friedkin ◽  
Juan Necochea
Keyword(s):  
School System ◽  
Empirical Support ◽  
Positive Association ◽  
System Size ◽  
School Systems ◽  
Negative Effects ◽  
Contingency Perspective ◽  
Assessment Program ◽  
And Performance ◽  
The Relationship

This paper contains empirical support for a new theory on the relationship between the size and performance of school systems. The theory predicts that the strength and direction of the relationship depend on the socioeconomic status (SES) of school systems. This prediction is supported with data from the California Assessment Program on both schools and districts. We find that as the SES of a school system goes up, the association between the size and performance of school systems goes from negative to positive. We also find that the negative association among low SES school systems is much stronger in magnitude than the positive association among high SES school systems. Thus, it appears that school system size has strong negative effects on performance that are eliminated, but not strongly reversed, in high SES settings.

The effect of bromocriptine on mammary-gland ultrastructure of hyperprolactinemic rats

1984 ◽  
Vol 42 ◽  
pp. 204-205
Author(s):  
I.C. Murray
Keyword(s):  
Mammary Gland ◽  
Dopamine Agonist ◽  
Alveolar Epithelium ◽  
Mammary Glands ◽  
Female Rats ◽  
Control Group ◽  
Cell Hyperplasia ◽  
Once Daily ◽  
Long Evans

In women, hyperprolactinemia is often due to a prolactin (PRL)-secreting adenoma or PRL cell hyperplasia. RRL excess stimulates the mammary glands and causes proliferation of the alveolar epithelium. Bromocriptine, a dopamine agonist, inhibits PRL secretion and is given to women to treat nonpuerperal galactorrhea. Old female rats have been reported to have PRL cell hyperplasia or adenoma leading to PRL hypersecretion and breast stimulation. Herein, we describe the effect of bromocriptine and consequently the reduction in serum PRL levels on the ultrastructure of rat mammary glands.Female Long-Evans rats, 23 months of age, were divided into control and bromocriptine-treated groups. The control animals were injected subcutaneously once daily with a 10% ethanol vehicle and were later divided into a normoprolactinemic control group with serum PRL levels under 30 ng/ml and a hyperprolactinemic control group with serum PRL levels above 30 ng/ml.

Undesirable Effects of Goal Setting on Perceived Fairness, Commitment, and Unethical Behavior

2018 ◽  
Vol 62 (2) ◽  
pp. 97-107 ◽  
Author(s):  
Nina Keith
Keyword(s):  
Goal Setting ◽  
Unethical Behavior ◽  
The United States ◽  
Goal Commitment ◽  
Management Technique ◽  
Long Term Effects ◽  
Perceived Fairness ◽  
Negative Effects ◽  
Positive Effects ◽  
And Performance

Abstract. The positive effects of goal setting on motivation and performance are among the most established findings of industrial–organizational psychology. Accordingly, goal setting is a common management technique. Lately, however, potential negative effects of goal-setting, for example, on unethical behavior, are increasingly being discussed. This research replicates and extends a laboratory experiment conducted in the United States. In one of three goal conditions (do-your-best goals, consistently high goals, increasingly high goals), 101 participants worked on a search task in five rounds. Half of them (transparency yes/no) were informed at the outset about goal development. We did not find the expected effects on unethical behavior but medium-to-large effects on subjective variables: Perceived fairness of goals and goal commitment were least favorable in the increasing-goal condition, particularly in later goal rounds. Results indicate that when designing goal-setting interventions, organizations may consider potential undesirable long-term effects.

The Influence of Cognitive and Affective Reactions to Feedback on Subsequent Goals

2010 ◽  
Vol 15 (2) ◽  
pp. 121-131 ◽  
Author(s):  
Remus Ilies ◽  
Timothy A. Judge ◽  
David T. Wagner
Keyword(s):  
Performance Feedback ◽  
Business School ◽  
Structural Equation ◽  
Emotional Reactions ◽  
Equation Model ◽  
Proposed Model ◽  
And Performance ◽  
Dispositional Measure ◽  
The Relationship ◽  
Reactions To Feedback

This paper focuses on explaining how individuals set goals on multiple performance episodes, in the context of performance feedback comparing their performance on each episode with their respective goal. The proposed model was tested through a longitudinal study of 493 university students’ actual goals and performance on business school exams. Results of a structural equation model supported the proposed conceptual model in which self-efficacy and emotional reactions to feedback mediate the relationship between feedback and subsequent goals. In addition, as expected, participants’ standing on a dispositional measure of behavioral inhibition influenced the strength of their emotional reactions to negative feedback.

Cognitive Factors Mediate the Relation Between Age and Flight Path Maintenance in General Aviation

2016 ◽  
Vol 6 (2) ◽  
pp. 81-90 ◽  
Author(s):  
Kathleen Van Benthem ◽  
Chris M. Herdman
Keyword(s):  
Cognitive Functioning ◽  
Flight Path ◽  
General Aviation ◽  
Cognitive Factors ◽  
Pilot Performance ◽  
Pilot Error ◽  
Age Related ◽  
And Performance ◽  
Relationship Of ◽  
The Relationship

Abstract. Identifying pilot attributes associated with risk is important, especially in general aviation where pilot error is implicated in most accidents. This research examined the relationship of pilot age, expertise, and cognitive functioning to deviations from an ideal circuit trajectory. In all, 54 pilots, of varying age, flew a Cessna 172 simulator. Cognitive measures were obtained using the CogScreen-AE ( Kay, 1995 ). Older age and lower levels of expertise and cognitive functioning were associated with significantly greater flight path deviations. The relationship between age and performance was fully mediated by a cluster of cognitive factors: speed and working memory, visual attention, and cognitive flexibility. These findings add to the literature showing that age-related changes in cognition may impact pilot performance.

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