75,660 research outputs found
EFFECT OF DIFFERENT HOUSING ONPRODUCTIVE TRAITS AND ON SOMEBEHAVIOUR PATTERNS OF GROWINGRABBITS. PRELIMINARY RESULTS
No full textTwo-hundred-twenty-eight 5-week-old Pannon
White rabbits were housed in cages (2 rabbits/
cage, 0.12 m2) or in pens (13 rabbits/pen, 0.83
m2) with the same stocking density. Half of the
cages and pens had wire net floor while the other
half had plastic net. In every second cage and
pen wooden gnawing stick was fixed onto the
wall. Every second week a 24-hour video
recording was done. At 11 weeks of age ear
lesions were checked. Body weight of rabbits in cages was significantly higher between 7 and
11 weeks of age. Floor type had no influence on
weight gain and body weight. Rabbits in cages/
pens with gnawing stick were significantly
heavier at 11 weeks of age. Mortality was
independent of all treatments. Gnawing stick
consumption was significantly higher in pens.
Ear lesions were more frequent in rabbits housed
in pens or on plastic net, however, significant
difference was found only between rabbits with
or without wooden stick, with higher ear lesions
on rabbits reared without wooden stick
Effect of different housing on productive traits and on some behaviour patterns of growing rabbits
No full textEFFECT OF FLOOR TYPE AND GNAWING STICKON THE CAGE-CHOICE OF THE GROWINGRABBITS
No full textFive-week-old Pannon White rabbits (n=112)
were weaned and housed into two blocks of
cages applying stocking density of 12 or 16
rabbits/m2. Both blocks were divided into four
cages of wire mesh (n=2) or plastic mesh floor
(n=2). In every second cage a gnawing stick was
fixed on the wall. The rabbits could freely move
among the four cages of the same block through
swing doors. A 24-hour infrared video recording
was taken once a week and the rabbits in each
cage were counted every half an hour.
Significantly more rabbits chose the cages of
plastic floor (16 rabbits/m2: 62.5%, 12 rabbits/
m2: 76.5%) than the cages of wire mesh floor.
With the increasing age between 5 and 11 weeks,
the ratio of rabbits on wire mesh floor increased.
This results show that the rabbits accept a less
preferable floor type instead of staying in higher
stocking density (kg/rabbits). The preference of
cages with gnawing sticks was also significant
(53.1-54.1%) but this effect was less pronounced
than that of the floor type
The Benefits of Being Economics Professor A (and not Z)
No full textAlphabetic name ordering on multi-authored academic papers, which is the convention in the economics discipline and various other disciplines, is to the advantage of people whose last name initials are placed early in the alphabet. As it turns out, Professor A, who has been a first author more often than Professor Z, will have published more articles and experienced afaster growth rate over the course of her career as a result of reputation and visibility. Moreover, authors know that name ordering matters and indeed take ordering seriously: Several characteristics of an author group composition determine the decision to deviate from the default alphabetic name order to a significant extent.performance measurement, incentives, economists, name ordering
Adaptive instantiation of service workflows using a chemical approach
No full textService oriented technologies allow Service Based Applications (SBAs) to be easily built by composing independent services available in a network and provided by many actors under conditions that may change in time. Therefore services need to be dynamically selected and composed when an SBA is required along with parameters representing the service delivery conditions. In this paper we propose to use a chemical computational approach to model the process of selecting the required service functionalities with the required conditions as an evolving and always running middleware mechanism. The chemical evolving behaviour of the middleware allows to take into account environmental changes coming from both the providers and users side. © 2011 Springer-Verlag Berlin Heidelberg
Using chemical reactions to model service composition
No full textInternet is evolving from a network of computers and information into a network of services allowing applications to be built by selecting services and composing them in a loosely coupled manner. These Service Based Applications (SBA) are composed of a number of possibly independent services that are provided by many actors under different conditions (like price, time to deliver, and so on). Service provision conditions may change in time depending on provider policies or other environmental changes, so it is necessary to organize compositions of services on demand in response to dynamic requirements and circumstances. In this paper we propose to use a chemical computational model to address this problem by decoupling the process of finding services composing an SBA requested by a user, from their actual enactment. An SBA request is described in terms of an abstract workflow where only service functionalities of the single components and their execution order (i.e. the application control flow) are specified, along with parameters representing the conditions under which the user expects the application to be delivered. The proposed approach allows to model the process of instantiating the required functionalities with actual service implementations as an evolving and always running middleware mechanism that can take into account the current state of the context when the composition is required. Furthermore, the evolutionary nature of the chemical system provides a form of adaptation since once compositions of services are computed with the available services, new compositions can be computed as soon as new services become available or the conditions of existing ones change. © 2010 ACM
Tissue transglutaminase (TG2) acting as G protein protects hepatocytes against Fas-mediated cell death in mice
No full textAssessment of Inflammation in 3D Reconstructed Human Skin Exposed to Combined Exposure to Ultraviolet and Wi-Fi Radiation
No full textIn the human environment, the increasing exposure to radiofrequency (RF) radiation, especially that emitted by wireless devices, could be absorbed in the body. Recently, mobile and emerging wireless technologies (UMTS, DECT, LTE, and Wi-Fi) have been using higher frequencies than 2G GSM systems (900/1800 MHz), which means that most of the circulating RF currents are absorbed into the skin and the superficial soft tissue. The harmful genotoxic, cytotoxic, and mutagenic effects of solar ultraviolet (UV) radiation on the skin are well-known. This study aimed at investigating whether 2422 MHz (Wi-Fi) RF exposure combined with UV radiation in different sequences has any effect on the inflammation process in the skin. In vitro experiments examined the inflammation process by cytokines (IL-1α, IL-6, IL-8) and MMP-1 enzyme secretion in a 3D full-thickness human skin model. In the first study, UV exposure was immediately followed by RF exposure to measure the potential additive effects, while in the second study, the possible protective phenomenon (i.e., adaptive response) was investigated when adaptive RF exposure was challenged by UV radiation. Our results suggest that 2422 MHz Wi-Fi exposure slightly, not significantly increased cytokine concentrations of the prior UV exposure. We could not detect the adaptive response phenomenon
Final word on Jersey Dutch
No full textIn this article, William Z. Shetter compares and contrasts the dialects that developed between different Dutch colonies in the New World. He explores in-depth the nuances of Jersey Dutch, and provides theories to explain how Dutch and colonial languages blended. The article is reprinted from American Speech, December 1958, Volum XXXIII, No. 4
Milk production of pseudopregnant multiparous does
No full textThe aim of the experiment was to evaluate the milk production of pseudopregnant does. In this experiment, data of multiparous, inseminated, pregnant (IP, n=15) does and two groups of presumably pseudopregnant multiparous does: inseminated, non-pregnant (INP, n=17) and induced to ovulation by GnRH (1.5 ug per animal) at the day of insemination (11 d after parturition) (non-inseminated, ovulating: NIO, n=15) were analysed. The progesterone level was measured at the 12th d after treatment to determine if females were pseudopregnant. All IP and NIO does were pregnant and pseudopregnant, respectively. Within the INP group, 10 and 7 does were diagnosed as positive (INPO) or negative (INPNO) for pseudopregnancy. Two of the INPNO does perished during lactation. The average milk production of groups IP, INP and NIO was 212, 92 and 72 g/d, respectively (P<0.001). The proportion of rabbit does reaching daily milk yields of <10, 10-50, 50-100, 100-160, <160 g in the various groups were: IP=0, 0, 0, 0 and 100%, NIO=20, 13, 27, 40 and 0%, INP=15, 15, 15, 55 and 0%, respectively. The daily milk yield of the 5 INPNO does was 2, 6, 27, 84 and 139 g, respectively. These results demonstrated that multiparous empty does, pseudopregnant or non-pseudopregnant, can produce milk, but in lower quantities than multiparous does after kindling
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