Digital data reformatter/deserializer

A method and apparatus is presented for reformatting and de-serializing a serially-received sequence of data words, each consisting of a fixed number of binary data bits. A block of nm bits is serially fed into a shift register or serially-connected group of shift registers. In lieu of the(nm-1)th shifts, the bits are rearranged within the shift register in parallel fashion, according to a prescribed scheme. Shifting then continues, until the first bit of each data word appears in the last bit position in the shift register, at which time that data word is shifted in parallel into an output buffer stage, from which it is outputted in parallel, after a fixed delay

Analysis, Tracing, Characterization and Performance Modeling of Select ASCI Applications for BlueGene/L Using Parallel Discrete Event Simulation

Caltech's Jet Propulsion Laboratory (JPL) and Center for Advanced Computer Architecture (CACR) are conducting application and simulation analyses of Blue Gene/L[1] in order to establish a range of effectiveness of the architecture in performing important classes of computations and to determine the design sensitivity of the global interconnect network in support of real world ASCI application execution

An effective procedure for the preparation of Neurospora conidiophores for scanning electron microscopy.

An effective procedure for the preparation of Neurospora conidiophores for scanning electron microscopy

How to approach research : a guide for child life specialists

This how-to guide aims to increase the understanding of research and provide child life specialists and students a concise and easy tool to access information about how they incorporate research into their work

Tergitol-induced colonial growth without inhibition of conidiation

The cloning of genes from Neurospora crassa usually involves transformation of a mutant with genomic library DNA and the subsequent identification of transformants showing wild-type phenotype (Vollmer and Yanofsky 1986. Proc. Natl. Acad. Sci. 83:4869- 4873). This can be problematic in the case of morphological mutants, because the sorbose- containing medium that is typically used to promote colonial growth of the transformants tends to interfere with conidiation, and sometimes inhibits aerial hyphal growth altogether. The medium described below uses the nonionic detergent tergitol (Tatum et al. 1949. Science 109:509-511) to induce colonial vegetative growth without affecting aerial hyphal growth or morphology

Collectors of Rhodiola species on the Sichuan-Tibetan and Sichuan-Shaanxi borders

Medicinal Rhodiola species, including Rhodiola rosea L. and Rhodiola crenulata (Hook.f. & Thomson) H.Ohba, have been widely used as traditional herbal medicines with numerous claims for their therapeutic effects. Faced with resource depletion, environment destruction and higher demand, R. rosea and R. crenulata are becoming endangered, making them economically even more valuable, but also increasing the risk of adulteration and low quality - and raising awareness for the role of often unlicensed collectors and middlemen. Although R. rosea is the most well known in Europe, R. crenulata is the recognised species in China. On the border of Sichuan and Tibet, members of the Yi minority collect R. crenulata in order to sell it to the “traditional” Chinese medicine market. Collection of this medicinal herb represents about one third of the annual income for the Yi. Three times a year they climb up to 5,000 metres in search of the plants. As it is stripped out, the Yi have to travel to more and more inhospitable places to ensure its supply. At Taibai mountain along the border of Sichuan and Shaanxi, the same medicinal plant, hongjingtian in Chinese, is growing in the wild, too. Yet, in a socioeconomic context, collectors do not have a particular ethnic background such as Yi, Tibetan or Han collectors. Here, the collectors are various unlicensed providers-cum-prescribers 'caoyi'. (The term does not mean herb-physician, as one might assume from terms such as caoyao (herbals). It means unofficial or not following the scholarly standard.) Using neither an ethnic identity nor the general botanical terms in Latin, they claim Daoism and terroir of their mountain as a sign of good quality ‘Taibai hongjingtian’. There appears to be no strategy in place to protect the species across all those socioeconomic, ethnic and provincial boundaries, and without some intervention it is likely that R. crenulata will eventually become so rare that it can no longer be collected in the current quantities. This will have consequences both for the livelihoods of the Yi and of various Caoyi, and also for the conservation of R. Crenulata and it’s sustainability

Study of an engine flow diverter system for a large scale ejector powered aircraft model

Requirements were established for a conceptual design study to analyze and design an engine flow diverter system and to include accommodations for an ejector system in an existing 3/4 scale fighter model equipped with YJ-79 engines. Model constraints were identified and cost-effective limited modification was proposed to accept the ejectors, ducting and flow diverter valves. Complete system performance was calculated and a versatile computer program capable of analyzing any ejector system was developed

Preliminary Results from a Study of the Effect of Deer Browsing on Bearded and Unbearded Wheat Yield

Wheat is an important agronomic crop that is a common winter food source for white-tailed deer (Odocoileus virginianus) in agricultural landscapes. In 2007 and 2008, I investigated spatial and temporal browsing on 2 types of wheat (bearded and unbearded) in fields bordered on one side by a forest. I placed 960 4.6 m2 plots in the middle of 10 m distance classes (5m, 15m, 25m, 35m, 45m, 55m). In 2007, I systematically assigned 1 of 2 treatments (no protection, protected at planting), and in 2008, I added a third treatment, protected prior to heading. After head emergence, I conducted weekly browse surveys and collected biomass samples. I harvested a 1 m2 area in the middle of each plot to determine yield . We used a two-way ANOVA with the main effects of wheat type and protection to determine the impact on yield. The main effects did not interact to affect yield either year (P\u3e0.05). In 2007, bearded wheat yielded 523.7 kg/ha greater than unbearded wheat (P\u3c0.001), whereas the opposite was true in 2008 with unbearded yielding 155.3 kg/ha greater (P\u3c0.001). In 2007, deer browsing increased yield by 284.8 kg/ha (P\u3c0.015), conversely in 2008, fully protected wheat yielded 226.3 kg/ha greater than all other treatments (P\u3c0.008). Browsing increased in intensity as head development progressed with most browsing occurring on the unbearded wheat. Our results varied annually, which suggests that factors other than deer browsing may be more important to determining wheat yield. More research is needed to better elucidate the effect of deer browse on wheat yield