Effect of over-milking on teat condition

2002 ◽  
Vol 69 (1) ◽  
pp. 81-84 ◽  
Author(s):  
J. ERIC HILLERTON ◽  
J. W. PANKEY ◽  
P. PANKEY

Unsatisfactory milking conditions, including high milking vacuum, ineffective pulsation, heavy clusters, unsuitable liners, poor teat preparation and over-milking, are known to create poor, but undefined, teat conditions and pose a risk to an increased probability of intramammary infection (IDF, 1994). It has been shown that poor teat condition, seen as discolouration, abnormal firmness or thickened rings of tissue distally, after cluster removal may be common in a variety of commercial milking operations (Hillerton et al. 2000). That field study was observational and teat conditions were influenced by a number of variables. A small experimental study has been undertaken to develop an experimental model, under controlled milking conditions, to allow investigation of potential causes of teat trauma. Over-milking was suggested as highly important in the field observations and so has been examined in this study.

2018 ◽  
Vol 33 (3) ◽  
pp. 31-60
Author(s):  
Fabrice Larceneux ◽  
Marjolaine Bezançon ◽  
Thomas Lefebvre

There has been little research exploring the effect of the number of photographs used to present a product, and the studies that have been carried out relate to experiments with a reduced number of non-informative photos. This article provides a first field study conducted on 3,658 real estate ads and shows that an increase in the number of photos decreases favourable behavioural responses for lower range properties, but has no effect in the case of higher range properties. This result is replicated and explained in an experimental study: for lower range properties, the addition of photos deteriorates the valence of mental images, decreases mental self-imagery and increases perceived worry. These variables explain the negative effect of the number of photos on behavioural responses. However, for higher range properties, the addition of photos – informative or not – does not improve behavioural responses. This ‘asymmetric revelation’ effect depending on the segment of the property market being targeted is discussed.


2019 ◽  
Vol 90 (3) ◽  
pp. e17.3-e16
Author(s):  
D Akarca ◽  
A Durnford ◽  
F Ewbank ◽  
J Hempenstall ◽  
A Sadek ◽  
...  

ObjectivesExternal ventricular drain (EVD) dislodgement is common and can lead to significant morbidity and mortality. UK trial data suggests dislodgement as high as 12%. This study aimed to establish the range of methods used nationally and determine the most secure method in a porcine model.DesignSurvey and experimental study.Subjects23 neurosurgical units surveyed. Porcine cadaver experimental model.MethodsSurvey distribution was made through the British Neurosurgical Trainee Research Collaborative. 15 securement methods were tested on the porcine model and peak pull-out force before EVD failure was measured. Failure was defined as catheter displacement 1 cm from the insertion site, catheter fracture or suture fracture.ResultsNationally, five EVD securement methods were in common use. There were considerable differences in peak pull-out force between methods. The most secure methods were a construct consisting of anchoring suture, further multiple sutures around a coil of catheter followed by either a soft (25.85N, 95% CI 24.95 N-26.75N) or hard plastic flange (29.05N, 95% CI 25.69 N-32.41N). Individually, anchoring sutures, soft flanges, VentriFix and staples were least secure, whilst multiple sutures and hard flanges were most secure.ConclusionsAn anchoring suture followed by a coil of catheter and a flange is the most secure method for securing EVDs, withstanding up to 8.2 times the force of a single anchoring suture. It is easily employed and may decrease the likelihood of EVD dislodgement and associated complications.


2005 ◽  
Vol 127 (2) ◽  
pp. 263-272 ◽  
Author(s):  
S. A. Nassar ◽  
H. El-Khiamy ◽  
G. C. Barber ◽  
Q. Zou ◽  
T. S. Sun

An experimental procedure is proposed for studying the underhead and thread friction in fasteners. The effective bearing friction radius, the underhead friction coefficient, and the thread friction coefficient are experimentally determined for fasteners with standard hexagonal heads and for flanged head fasteners. Hence, greater accuracy has been achieved in determining the value of the torque components that are consumed in overcoming friction in threaded fasteners. This would lead to a more reliable torque-tension correlation and would enhance the safety and quality of bolted assemblies. A design of experiment procedure is presented in order to investigate the effect of fastener material class, the thread pitch, and the fastener size on thread friction coefficient. For the underhead bearing friction, an experimental model is presented in order to determine the effect of the radii ratio of the contact area on the bearing friction radius.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jong-Hyeong Kim ◽  
Wenxuan Du ◽  
Hyewon Youn

PurposeThe service recovery paradox (SRP) refers to a particular effect whereby an excellent recovery can turn angry and frustrated customers into loyal ones. Researchers who have studied the SRP have reported mixed findings, with some providing evidence in its support and others not finding any such evidence. To address this discrepancy, this study aims to investigate the SRP.Design/methodology/approachThis study re-examined the phenomenon of the SRP with a field study and provided further evidence in a subsequent experimental study in which the failure and recovery conditions were carefully manipulated.FindingsThe results of this study suggest that the SRP was observed in neither the field study nor the scenario experiment.Practical implicationsThis study can influence the current service management of restaurants with regard to service failures in several ways.Originality/valueThis research is a pioneering effort to examine the SRP by conducting both a field study and a scenario experiment.


Author(s):  
S. A. Nassar ◽  
H. El-Khiamy ◽  
G. C. Barber ◽  
Q. Zou ◽  
T. S. Sun

An experimental procedure is proposed for studying the underhead and thread friction in fasteners. The effective bearing friction radius, the underhead friction coefficient, and the thread friction coefficient are experimentally determined for fasteners with standard hexagonal heads and for flanged head fasteners. Hence, greater accuracy has been achieved in determining the value of the torque components that are consumed in overcoming friction in threaded fasteners. This would lead to a more reliable torque-tension correlation and would enhance the safety and quality of bolted assemblies. A Design of Experiment (DOE) procedure is presented in order to investigate the effect of fastener material class, the thread pitch, and the fastener size on thread friction coefficient. For the underhead bearing friction, an experimental model is presented in order to determine the effect of the contact area radii ratio on the bearing friction radius.


2020 ◽  
Vol 21 (2) ◽  
pp. 371-388 ◽  
Author(s):  
Apollo Demirel

PurposeThe purpose of this paper is to investigate the link between sponsorship of professional sport teams and consumers' socially responsible perceptions of a sponsoring brand. More specifically, this research investigates if sponsorship of professional sport teams in itself leads consumers to perceive a sponsoring brand as socially responsible, and what factors may produce CSR perceptions and subsequent consumer response.Design/methodology/approachAn experimental study was conducted to examine the impact of sponsorship of professional sport teams on consumers' CSR perceptions of a sponsoring brand. Further, a field study was used to explore the role of sponsorship fit in generating CSR perceptions.FindingsThe results from the experimental study indicated that brand sponsorship of professional sport teams contributes to the socially responsible image of that brand, and sponsorship fit induces consumers' CSR perceptions of a sponsoring brand. Additionally, the results from the field study identified CSR perceptions as an underlying process driving the effect of sponsorship fit on consumers’ behavioral intentions toward a sponsoring brand. Lastly, the role of team identification was shown as a boundary condition shaping the effects of sponsorship fit.Practical implicationsBrands specifically seeking to create a socially responsible image, thanks to sponsoring a sport team, should consider the importance of perceived fit between their brand and the sponsored sport team as it is a key predictor of CSR perceptions.Originality/valueThis paper provides empirical evidence for the sport sponsorship and CSR perceptions link and sheds light on important predictors for consumer response.


2014 ◽  
Vol 42 (9) ◽  
pp. 1521-1535 ◽  
Author(s):  
Yanhan Zhu ◽  
Yan Kou

We conducted two studies in which we examined the contingent relationships among interactional injustice, workplace aggression, and organizational remedy. In the field study (Study 1) involving 192 full-time employees in Mainland China we found that different types of interactional injustice had very different effects in terms of the form of workplace aggression triggered. In the experimental study (Study 2) with 189 graduate and undergraduate students at 2 Chinese universities, the results revealed that the effectiveness of the organizational remedy in mitigating workplace aggression depended on the matching of the type of remedy offered by the organization or its agents with the type of interactional injustice the aggrieved employee perceived that he or she had suffered. Theoretical and practical implications are discussed.


2019 ◽  
Vol 2 (1) ◽  
pp. 267
Author(s):  
Sumiman Udu

Wowine (female) has a very shining and very sad footprint in the history of maritime culture Wakatobi Buton. Wowine's glorious times were when Queen Wakaa-kaa and Ratu Bulawambona came to power in Buton (Zahari, 1977/1978; Zaenu, 1984). At that time, wowine has a very strategic position in the government system of the Sultanate of Buton. Wowine's involvement in the government system of the Sultanate of Buton, not only occupied his role as queen but also became one of the conditions worthy or not someone become Sultan. The idea of wowine in the maritime culture of Wakatobi Buton was born from the research using Pierre Bordiau approach to see the habits, the realm of maritime Wakatobi Buton in the past, present, and future. This paper shows that the involvement of women in the Sultanate government system of Buton is responsible for the welfare and salvation of the empire. In the life of Buton people, women are responsible for several things, (1) taking care of the child, (2) seeking sustenance together with husband, (3) educating children, and (4) doing deeds, “amala or hope” to protect the husband's safety while in outdoors. It is further explained that the empress in the Sultanate of Buton served to: (1) become the head of Sarana Bawina, (Head of the Women's Council of the Sultanate of Buton), (2) safeguard the welfare and health of the sultan, and (3) educate the women in the sultanate. The findings were based on the method used, namely literature study and field study. Library study (script) to find information about the existence of women in the maritime culture Wakatobi Buton in the past. Field observations and interviews to determine the current condition of women in the maritime culture of Wakatobi Buton.


2021 ◽  
Author(s):  
Tian Heong Chan ◽  
Yonghoon G. Lee ◽  
HeeJung Jung

A new design can be compared with its contemporaries or older designs. In this study, we argue that the temporal distance between the new design and its comparison play an important role in understanding how a new design’s similarity with other designs contributes to its valuation. Construing the value of designs as a combination of their informational value and their expressive value, we propose the “anchored differentiation” hypothesis. Specifically, we argue that expressive value (which is enhanced by how much the new design appears different from others) is emphasized more than informational value (which is enhanced by how much the new design appears similar to others) compared with contemporary designs. Informational value, however, is emphasized more than expressive value when compared against designs from the past. Therefore, both difference from other contemporary designs (contemporary differentiation) and similarity to other past designs (past anchoring) help increase the value of a new design. We find consistent evidence for our theory across both a field study and an experimental study. Furthermore, we show that this is because temporal distance changes the relative emphasis on expressive and informational values. We discuss our contribution to the growing literature on optimal distinctiveness and design innovation by offering a dynamic perspective that helps resolve the tension between similarities and differences in evaluating new designs.


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