2,458 research outputs found
A spatio-temporal analysis of groundwater level changes in relation to urban growth and groundwater recharge potential for Waukesha County, Wisconsin
The main objective of this study was to spatially and temporally analyze groundwater level changes using geographic information systems and spatial analysis with respect to urban development, groundwater water withdrawal, and groundwater recharge potential. The study focused on Waukesha County in southeastern Wisconsin, where urban development has been accelerating while groundwater has been declining during the last several decades. We analyzed data about groundwater withdrawal, groundwater level, land use/land cover, and precipitation utilizing correlation analysis, Geographically Weighted Regression (GWR), land-use change analysis, and map overlay. As a result, we found that (1) Urban areas increased faster in areas with high recharge potential than in areas with low or moderate recharge potential, (2) The effect of urban growth on groundwater level is highly variable by time and space, and (3) The changes in groundwater level are strongly related to the spatial distribution of groundwater withdrawal. The study pinpoints the need to consider the spatial unevenness of groundwater withdrawal in understanding the changes in groundwater level and groundwater recharge potential for better managing groundwater resources
The 750 GeV Diphoton Excess May Not Imply a 750 GeV Resonance
We discuss non-standard interpretations of the 750 GeV diphoton excess
recently reported by the ATLAS and CMS Collaborations which do not involve a
new, relatively broad, resonance with a mass near 750 GeV. Instead, we consider
the sequential cascade decay of a much heavier, possibly quite narrow,
resonance into two photons along with one or more invisible particles. The
resulting diphoton invariant mass signal is generically rather broad, as
suggested by the data. We examine three specific event topologies - the antler,
the sandwich, and the 2-step cascade decay, and show that they all can provide
a good fit to the observed published data. In each case, we delineate the
preferred mass parameter space selected by the best fit. In spite of the
presence of invisible particles in the final state, the measured missing
transverse energy is moderate, due to its anti- correlation with the diphoton
invariant mass. We comment on the future prospects of discriminating with
higher statistics between our scenarios, as well as from more conventional
interpretations.Comment: Discussion about the ATLAS Moriond EW2016 added. Matched to PRL
accepted versio
The Distribution Strategy Of A Representative Fair Trade Organization In Korea: The Case Of Beautiful Coffee
This case study analyzes the distribution strategy of Beautiful Coffee, a leading fair trade organization in Korea. Because of their focus on matters of public interest, fair trade organizations often face financial difficulties, and such difficulties can limit their growth and force them to pursue differentiated distribution strategies. The results indicate that Beautiful Coffee can serve as a good role model for fair trade organizations and have important practical implications for firms pursuing sustainable growth as a social enterprise
EFFECTS OF LANDING HEIGHT ON LOWER EXTREMITY JOINT BIOMECHANICS DURING UNILATERAL AND BILATERAL LANDINGS
The aim of this study was to examine the lower extremity kinematics and kinetics during landing phase, in response to the effects of landing height during unilateral and bilateral landing. Ten young healthy male subjects (age: 26.1±1.8yr, height: 183.2±4.4cm, weight: 76.1±6.9kg) participated in this study. Each subject performed the unilateral and bilateral landing from a 30cm and 45cm wooden platform. The results showed the peak vertical ground reaction force (PVGRF) was increased during unilateral landing and at greater landing height (
Importância dos Saca-Rabos (Herpestes Ichneumon) como Reservatório de Mycobacterium avium subsp. paratuberculosis. Deteção por Técnicas Tradicionais e Moleculares
Poster apresentado nas IV Jornadas de Genética, realizadas na UTAD, Vila Real, nos dias 1,2 e 3 de Março de 2012.Os saca-rabos (Herpestes ichneumon) também conhecidos por mangustos, são carnívoros diurnos selvagens que juntamente com a geneta (Genetta genetta) representam os exemplares da família Viverridae em Portugal. É uma espécie cinegética de caça menor que se alimenta de coelhos, roedores, aves, cobras, insectos e ovos.
Neste estudo colheram-se amostras de 8 animais mortos por atropelamento e em ações de controlo de predadores, durante os anos de 2010 e 2011, nos concelhos de Idanha-a-Nova e Penamacor do distrito de Castelo Branco. As amostras colhidas foram fígado, pulmão, baço, intestino, rim, gânglio mesentérico, retrofaríngeo, mediastínico, amígdalas e fezes. As amostras foram submetidas à técnica de PCR e a cultura microbiológica em meios específicos.
Em três saca-rabos (37,5%) detectou-se Mycobacterium avium subsp. paratuberculosis (Map) através da técnica de biologia molecular. Dois eram machos e um era fêmea. Map foi confirmado também em cultura nos dois machos. Sete saca-rabos (87,5%) apresentaram bactérias álcool-ácido resistentes compatíveis com Map em esfregaços de diferentes tecidos, quando corados pelo método de Ziehl-Neelsen.
Estes resultados preliminares confirmam os saca-rabos como reservatório de Map no nosso país. Atualmente, estão a ser desenvolvidos mais estudos para a avaliação dos saca-rabos na dinâmica da infeção de Map em mamíferos selvagens
Effect of 5-alpha Reductase Inhibitor on Storage Symptoms in Patients with Benign Prostatic Hyperplasia
Purpose Many patients with benign prostatic hyperplasia (BPH) have storage symptoms. The aim of this study was to evaluate the effects of treatment with a 5-alpha reductase inhibitor (5ARI) on storage symptoms in patients with BPH. Methods This study was conducted in 738 patients with lower urinary tract symptoms secondary to BPH. Patients with a prostate volume of higher than 30 mL on the transrectal ultrasound were classified into two groups: group A, in which an alpha blocker was solely administered for at least 12 months, and group B, in which a combination treatment regimen of an alpha blocker plus 5ARI was used. This was followed by an analysis of the changes in parameters such as the total International Prostate Symptom Score (IPSS), voiding symptom subscore, and storage symptom subscore between the two groups. In addition, we examined whether there was a significant difference between the two groups in the degree of change in storage symptoms between before and after the pharmacological treatment. Results Of the 738 men, 331 had a prostate volume ≥30 mL, including 150 patients in group A and 181 patients in group B. Total IPSS, the voiding symptom subscore, and the storage symptom subscore were significantly lower after treatment than before treatment in both groups (P<0.05). A comparison of the degree of change between before and after treatment, however, showed no significant differences in the storage symptom subscore between the two groups (P>0.05). Conclusions Alpha blocker and 5ARI combination treatment is effective for patients with BPH including storage symptoms. However, 5ARI does not exert a significant effect on storage symptoms in BPH patients
Protective activity of kudzu (Pueraria thunbergiana) vine on chemically-induced hepatotoxicity: in vitro and in vivo studies
Elevated matrix metalloproteinase-9 in patients with systemic sclerosis
Matrix metalloproteinase-9 (MMP-9) has been implicated in the pathogenesis of cancer, autoimmune disease, and various pathologic conditions characterized by excessive fibrosis. In this study, we investigated the expression of MMP-9 and its clinical significance in systemic sclerosis (SSc). The patients (n = 42) with SSc had higher concentrations of MMP-9 and of tissue inhibitor of metalloproteinase-1 (TIMP-1) and a higher ratio of MMP-9 to TIMP-1 in sera than healthy controls (n = 32). Serum MMP-9 concentrations were significantly higher in the diffuse type (n = 23) than the limited type of SSc (n = 19). Serum concentrations of MMP-9 correlated well with the degree of skin involvement, as determined by the Rodnan score and with serum concentrations of transforming growth factor β. Moreover, dermal fibroblasts from patients with SSc produced more MMP-9 than those from healthy controls when they were stimulated with IL-1β, tumor necrosis factor α, or transforming growth factor β. Such an increase in MMP-9 production was partially blocked by treatment with cyclosporin A. In summary, the serum MMP-9 concentrations were elevated in SSc patients and correlated well with skin scores. The increased MMP-9 concentrations may be attributable to overproduction by dermal fibroblasts in SSc. These findings suggest that the enhanced production of MMP-9 may contribute to fibrogenic remodeling during the progression of skin sclerosis in SSc
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