A Survey of the Helminth Parasites of Pheasants from Brown County, South Dakota

This paper presents a study of the helminth endoparasite of the Chinese or ring-necked pheasant (Phasianus colchicus). The digestive and respiratory tracts of 262 pheasants, all of which were collected in Brown County, South Dakota, were examined. Collections were ,made from January, 1961, through November of the same year. The problem was divided as follows: (1) locating and Identifying the helminth parasites, (2) relating parasitism to the age of the birds, (3) ascertaining the seasonal distribution of the parasites, and (4) determining what gross pathological changes were due to parasitism. Previous to this study, little or no literature was available regarding the pheasant parasites of the state, and few systemic investigations of this nature had been undertaken in any region. Most of the reports from areas in the United State where the pheasant has become established limit the discussion of parasitism to isolated notations of occurrence or to host lists. Thus, this study was made in order to obtain a record of the occurrence, incidence and effect on the host by pheasant parasites in South Dakota

Existing motor state is favored at the expense of new movement during 13-35 Hz oscillatory synchrony in the human corticospinal system

Oscillations in local field potentials in the β-frequency band (13-35 Hz) are a pervasive feature of human and nonhuman primate motor cortical areas. However, the function of such synchronous activity across populations of neurons remains unknown. Here, we test the hypothesis that β activity may promote existing motor set and posture while compromising processing related to new movements. Three experiments were performed. First, healthy subjects were instructed to make reaction time movements of the outstretched index finger in response to imperative cues triggered by transient increases in corticospinal synchrony, as evidenced by phasic elevations of β-frequency band microtremor and intermuscular synchrony. Second, healthy subjects were instructed to resist a stretch to the index finger triggered in the same way. Finger acceleration in the reaction time task and transcortical components of the stretch reflex were measured and compared with those elicited by random cue or stretch presentation. Finally, we sought a correlation between finger acceleration in the reaction time task and cortical synchrony directly measured from the electrocorticogram in two patients undergoing functional neurosurgery. We demonstrate that movements are slowed and transcortical responses to stretch are potentiated during periods of elevated β-band cortical synchrony. The results suggest that physiological periods of β synchrony are associated with a cortical state in which postural set is reinforced, but the speed of new movements impaired. The findings are of relevance to Parkinson's disease, in which subcortical and cortical β-band synchronization is exaggerated in the setting of increased tone and slowed movements

Studies on Schistosome Dermatitis (\u27Swimmer\u27s Itch ) in Minnesota

A preliminary study was conducted to determine the causative agents of schistosome dermatitis ( swimmer\u27s itch ) in Minnesota and to determine the incidence schistosome infection in vector snails. A total of 1180 snails were collected from ten different localities, eight of which were sites of known schistosome activity . The incidence of schistosome infection in snails from individual areas was always less than 10 percent. Cercariae of Trichobilharzia ocellata from Lymnaea stagnalis were the most frequently-found schistosomes in our study

Genetic diversity in curtoviruses: a highly divergent strain of Beet mild curly top virus associated with an outbreak of curly top disease in pepper in Mexico

A full-length curtovirus genome was PCR-amplified and cloned from peppers in Mexico with symptoms of curly top disease. The cloned DNA of this isolate, MX-P24, replicated in Nicotiana tabacum protoplasts and was infectious in N. benthamiana plants. Sequence analysis revealed that the MX-P24 isolate had a typical curtovirus genome organization and was most similar to beet mild curly top virus (BMCTV). However, sequence identities were at the threshold value for establishment of a new curtovirus species. To further investigate the biological properties of MX-P24, an agroinoculation system was generated. Agroinoculated shepherd’s purse plants developed typical curly top symptoms, and virus from these plants was transmissible by the beet leafhopper (Circulifer tenellus). The host range of MX-P24 was similar to that of BMCTV, with curly top symptoms induced in common bean, pepper, pumpkin, shepherd’s purse and tomato plants and mild or no symptoms induced in sugar beet plants. Together, these results indicate that MX-P24 is a highly divergent strain of BMCTV associated with an outbreak of curly top disease in peppers in Mexico

From digital repositories to the library catalogue: Two workflows for transforming metadata

Making a connection between digital repositories and library catalogues is an issue many libraries and archives face, especially when dealing with items that traditionally received full cataloguing records. This paper explores different workflows for reusing metadata to create catalogue records, connecting the two resources together. In order to have one interface to search both the older physical items and newer digital items, the archives and technical services department of the University of Arkansas Libraries worked together to create different workflows to save time and eliminate the need for double entry, using the open source software MarcEdit and XML Notepad. Two different processes were created for different types of materials in different repositories. The first process transforms metadata for undergraduate theses in DSpace from Dublin Core to MARC. The second process transforms metadata from music concert recordings in Islandora from MODS to MARC. Readers will learn multiple options and techniques for converting metadata to MARC records

On the Motion of Fluidized Granular Currents: Motion Along Horizontal Surfaces

The motion of fuidised granular currents over horizontal surfaces is investigated experi- mentally and by mathematical modelling of solid and fluid phases. Analytical solutions for the bulk motion were tested by experiments involving material being introduced at a constant volume flux, and a reasonable agreement found between theoretical predictions and laboratory measurements

Connecting Access from Metadata to MARC

Making a connection between digital repositories and library catalogs is an issue many libraries and archives face, especially when dealing with items that traditionally received full cataloging records. This poster will explore different workflows for reusing metadata to create catalog records, connecting the two resources together. In order to have one interface to search both the older physical items and newer digital items, the archives and technical services department of the University of Arkansas Libraries worked together to create different workflows to save time and eliminate the need for double entry, using the open source software MarcEdit and XML Notepad. We created two processes for distinct materials in different repositories. The first process transforms metadata for undergraduate theses in DSpace from Dublin Core to MARC. The second process transforms metadata from music concert recordings in Islandora from MODS to MARC

Gender and participation in early stages of the free/open source software joining process

Free/Open Source Software (FOSS) is a powerful development paradigm for creating software. Increasingly more FOSS projects, like Firefox and Android, are integrated into mainstream technology. It is important that FOSS projects serve its diverse user base well. Several surveys have found that existing FOSS communities are very homogenous populations and made up of mostly men. There are significantly fewer women participating in FOSS when compared to the percentage of women in computing in general. FOSS communities have a large amount of turnover and must have a continual influx of new developers to keep the project alive and thriving. When a new developer wants to learn more about a project, report a bug or has a question about the project, he or she typically posts a message on a mailing list. Mailing lists are the primary form of communication with FOSS communities, and are the first place where new users interact with the existing community. Building on previous research, we examined one of the first steps of joining a FOSS project, subscribing to a mailing list, and studied posting statistics of females during the early stages of the process. In particular, we explored 6 FOSS projects: Buildroot, Busybox, Jaws, Parrot, Uclibc, and Yum. We found that 8.27% of FOSS list subscribers are women and that significantly fewer posters (6.63%) are women. Women lurked on a list slightly less than men before replying, and remained subscribed for slightly less time to a mailing list