The Influence of Some Factors on Prices in the Phoenix Cotton Market: Quality, Lot Size, Lot Uniformity

This item is part of the Agricultural Experiment Station archive. It was digitized from a physical copy provided by the University Libraries at the University of Arizona. For more information, please email CALS Publications at [email protected]

Erfarenheter av kontrollerad miljö i försöksdjurslokaler

It is important for many animal model studies, particularly with rodents, to be performed in a well standardized and controlled physical environment. Otherwise the observations and measurements done might create difficulties in interpretation, or the results might even be impossible to reproduce or verify in another laboratory. In the animal department of BISAM at Umea university the ventilation system was modernized in 1983-84 in the rodent facilities, with supply of air through new devices in the ceiling and exhaust of air through perforated walls on two sides of the rooms. The supply air comes from a climat chamber where the incoming air should be properly heated and humidified, as controlled by thermo- and hygrostats in the chamber outlet. The animal rooms are also equipped with a sprinkler system for additional humidification as necessary.This report presents results on controls made on temperature and humidity stability in these rebuilt rodent facilities during summer (1984) as well as winter (early 1985) conditions. The capacity of the air supply system was also controlled.In summary, the temperature in the animal rooms tended to be high during summer, and increased in periods of high out of door temperature so that in the animal cages the temperature could exceed 31 °C. The relative humidity was above accepted levels most of the time. On the other hand, during winter it seemed to be possible to keep the temperature within the desired levels, but the relative humidity was unacceptably low.With these results at hand, the air supply system was controlled for its ability mainly to humidify the air. This control was done during autumn and showed that at that time of the year the capacity was just at limit to give the desired humidity in the animal rooms. The main >>function<< of the room sprinkler system was in fact to decrease room temperature and to give unstable temperature and humidity. During winter when very cold, dry air should be heated and humidified the capacity of the climat chamber is far from sufficient. The high temperature in the rooms during summer depend upon the lack of cooling possibilities in the chamber

Strain variations in InGaAsP/InGaP superlattices studied by scanning probe microscopy

Strain-compensated InGaAsP/InGaP superlattices are studied in cross section by atomic force microscopy and scanning tunneling microscopy. Undulations in the morphology of the {110} cross-sectional faces are observed, and are attributed to elastic relaxation of this surface due to underlying strain arising from thickness and compositional variations of the superlattice layers. Finite element computations are used to extract a quantitative measure of the strain variation. © 1998 American Institute of Physics.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71059/2/APPLAB-72-14-1727-1.pd

Population-based study of autoimmune conditions and the risk of specific lymphoid malignancies

Some autoimmune conditions are associated with increased risk of lymphoid malignancies, but information on specific malignancy subtypes is limited. From the U.S. Surveillance Epidemiology and End Results-Medicare database, we selected 44,350 lymphoid malignancy cases (≥67 years) and 122,531 population-based controls. Logistic regression was used to derive odds ratios (ORs) comparing the prevalence of autoimmune conditions in cases and controls, by lymphoid malignancy subtype, adjusted for gender, age at malignancy/selection, year of malignancy/selection, race and number of physician claims. The strongest associations observed by Non-Hodgkin lymphoma (NHL) subtypes were diffuse large B-cell lymphoma with rheumatoid arthritis (OR 1.4, 95%CI 1.2-1.5) and Sjögren syndrome (2.0, 1.5-2.8); T-cell lymphoma with hemolytic anemia (9.7, 4.3-22), psoriasis (3.1, 2.5-4.0), discoid lupus erythematosus (4.4, 2.3-8.4), and celiac disease (5.0, 2.4-14.); and marginal zone lymphoma with Sjögren syndrome (6.6, 4.6-9.5), systemic lupus erythematosus (2.8, 1.7-4.7), and hemolytic anemia (7.4, 3.1-18). Hodgkin lymphoma was associated with several autoimmune conditions. Multiple myeloma was associated only with pernicious anemia (1.5, 1.3-1.7). Several autoimmune conditions were associated with increased risk of lymphoid neoplasms, especially NHLs of diffuse large B-cell, marginal zone and T-cell subtypes. These results support a mechanism whereby chronic antigenic stimulation leads to lymphoid malignancy

The impact of prior malignancies on second malignancies and survival in MM patients: a population-based study

To access publisher's full text version of this article, please click on the hyperlink in Additional Links field or click on the hyperlink at the top of the page marked FilesIn the present study, we aimed to evaluate 2 hypotheses. First, we hypothesize that prior malignancy is a proxy for genetic susceptibility that could be a risk factor for subsequent malignancy development in multiple myeloma (MM) patients. Second, we hypothesize that survival after MM is influenced by a prior malignancy. All patients diagnosed with MM from 1 January 1973 to 31 December 2010 were identified from the Swedish Cancer Register. Cox regression model was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) where prior malignancy was compared in MM patients who developed a subsequent malignancy and MM patients who did not. In another Cox regression model, survival was compared in MM patients with and without a prior malignancy diagnosis. A total of 19 791 patients were diagnosed with MM. Patients with a prior malignancy diagnosis had a significantly increased risk of developing a subsequent malignancy compared with MM patients without (HR 1.42, 95% CI 1.23-1.65, P 1 prior malignancy reduces survival even further.Asrun Einarsdottir Foundation in Iceland Blodcancerfonden Swedish Cancer Society Stockholm County Council Karolinska Institutet Foundation University of Iceland Research Fund Icelandic Centre for Research Landspitali University Hospital Research Fund Marie Curie Career Integration Grant Memorial Sloan Kettering Cancer Center Core Grant by the National Cancer Institute, National Institutes of Healt

Demonstration of integrated microscale optics in surface-electrode ion traps

In ion trap quantum information processing, efficient fluorescence collection is critical for fast, high-fidelity qubit detection and ion-photon entanglement. The expected size of future many-ion processors require scalable light collection systems. We report on the development and testing of a microfabricated surface-electrode ion trap with an integrated high numerical aperture (NA) micromirror for fluorescence collection. When coupled to a low NA lens, the optical system is inherently scalable to large arrays of mirrors in a single device. We demonstrate stable trapping and transport of 40Ca+ ions over a 0.63 NA micromirror and observe a factor of 1.9 enhancement in photon collection compared to the planar region of the trap.Comment: 15 pages, 8 figure

Germline and somatic JAK2 mutations and susceptibility to chronic myeloproliferative neoplasms

Myeloproliferative neoplasms (MPNs) are a group of closely related stem-cell-derived clonal proliferative diseases. Most cases are sporadic but first-degree relatives of MPN patients have a five- to seven-fold increased risk for developing an MPN. The tumors of most patients carry a mutation in the Janus kinase 2 gene (JAK2V617F). Recently, three groups have described a strong association of JAK2 germline polymorphisms with MPN in patients positive for JAK2V617F. The somatic mutation occurs primarily on one particular germline JAK2 haplotype, which may account for as much as 50% of the risk to first-degree relatives. This finding provides new directions for unraveling the pathogenesis of MPN