Hibernate Research Articles

Polar bears can't hibernate their way out of starvation

Polar bears can't hibernate their way out of starvation

Demonstration platform for collaborative design of space science missions

There are several problems during the demonstration process of collaborative design of space science missions,such as strong coupling between sub-system solutions,poor data consistency,difficulty in data modification,and associated relationship between data and demonstration process. In order to solve these problems,a multi-layer digital model for typical space missions was proposed. The demonstration process was graphically modeled,and the mapping between the process and data was established. The shared data pool was provided as the data collaboration mechanism for all users and all sub-system solutions. The message bus was adopted as the timely reminder to notify the changes of data. The design solution coupling matrix was used to describe the coupling relationship between sub-system solutions and to gain the system solution for the missions by the automatically merged method. The demonstration platform,as a distributed platform for the collaborative design of space science missions,uses the technology architecture of Eclipse RCP and Spring and integrates the middlewares of Hibernate and Activiti5. The platform can provide a unified portal and support multiuser,multi-mission,multi-solution and multi-version data management,and also support process monitor and data interactive collaboration. A space mission was used as an example to verify the efficacy of the platform.

Studies on the Biology and the Ecology Pest Eurytoma Schreineri (Waspy Plum Seed), in Mureş County, year 2008

Eurytoma schreineri is seen as harmful to economic share in almost all areas of culture plum Mures County. In order to determine the optimal period to combat this pest is to first adult emergence time in correlation with temperature and mass flight of them, as decisive factor in making chemical treatments. The insect hibernate as larva stage fully developed in plum fruit. In climatic conditions of Mures County, in 2008, first flight hornet was observed on 09.05., corresponding to end of shaking up the petals and the maximum flight was reported on 24.05., corresponding to the detachment of calyx fruit-raising faze. Amount active temperatures recorded by the first hornet is Σ(tn-t0)=66,8oC.

Intestinal secretion after jejunal bypass in the ground squirrel.

The preceding paper [H. V. Carey, Am. J. Physiol. 263 (Regulatory Integrative Comp. Physiol. 32): R1202-R1208, 1992] demonstrated that a 3-day fast or the extended fast of hibernation enhanced the chloride secretory responses to a variety of agonists in the ground squirrel jejunum. Here we examined the effect of jejunal bypass on intestinal secretory capacity in squirrels that either remained active and continued to feed (ACT), or were induced to hibernate (HIB). Mucosal wet weights were reduced in jejunal segments that had little or no exposure to the luminal stream (all segments from HIB and bypassed segments from ACT) compared with segments in contact with luminal contents (sham and in continuity segments of ACT). Tissue conductances were greater in those segments not exposed to luminal contents. Short-circuit current (Isc) responses to electrical stimulation of submucosal neurons, or to serosal carbachol, were greater in segments not exposed to luminal contents when responses were normalized to serosal surface area. Normalization of secretory responses to crypt area produced a similar pattern. Isc responses to mucosal alanine, which reflect electrogenic Na+ absorption, were greatest in segments with little or no exposure to luminal contents. Tissue wet weights, conductances and secretory responses of bypassed segments of HIB and ACT squirrels were always similar. These results suggest that luminal contents directly influence jejunal secretory capacity.

Does the Housefly Hibernate as a Pupa?

Does the Housefly Hibernate as a Pupa?