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Articoli di riviste sul tema "Wv 345"
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Song, Chang Ho, Xin Zhang, Ok Hee Chai, Dong-Hwa Shon, Jeong Min Lim, Ik Seong Kim, Eui-Hyeog Han e Hyoung Tae Kim. "Role of mast cells in a chronic murine asthma model (HYP3P.348)". Journal of Immunology 192, n. 1_Supplement (1 maggio 2014): 54.6. http://dx.doi.org/10.4049/jimmunol.192.supp.54.6.
Testo completoAbstract (sommario):
Abstract Mast cells are thought to be important in the cause of allergic diseases, but the role of mast cells in the airway remodeling of chronic long-term asthma remains controversial. In this study, using the mast cell “nock in” strategy to get the mast cell-deficient WBB6F1-W/Wv mice (W/Wv) selectively reconstituted bone marrow-cultured mast cells (BMCMCs) from normal congenic wild-type mice (+/+) (+/+ BMCMCs→W/Wv mice), mice were employed to study the roles of mast cell in a murine asthma model. The mice were sensitized with ovalbumin (OVA) and challenged with OVA for 14 weeks. The mice were assessed airway reactivity by PenH. The lungs and trachea were stained with H-E for pathologic alteration, toluidine blue for mast cell, congo red for eosinophil, PAS for goblet cell and Masson’s-trichrome for fibrosis. Mast cells were not observed in the lungs of control and OVA-sensitized and challenged W/WV mice, but OVA-sensitization and challenge increased mast cell number in +/+ mice and +/+BMCMCs→W/Wv mice. OVA-sensitization and challenge could enhance airway reactivity, pathologic alteration, eosinophil infiltration, goblet cell hyperplasia and fibrosis in +/+ mice. The pathologic changes of OVA treated W/Wv mice were less than that of +/+ mice, but +/+BMCMCs→W/Wv mice could restore the reaction to OVA-sensitization and challenge of +/+ mice. These results indicate that the mast cell play an important role in the OVA-induced chronic murine asthma model.
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Ortega, Ivan, Rebecca R. Buchholz, Emrys G. Hall, Dale F. Hurst, Allen F. Jordan e James W. Hannigan. "Tropospheric water vapor profiles obtained with FTIR: comparison with balloon-borne frost point hygrometers and influence on trace gas retrievals". Atmospheric Measurement Techniques 12, n. 2 (8 febbraio 2019): 873–90. http://dx.doi.org/10.5194/amt-12-873-2019.
Testo completoAbstract (sommario):
Abstract. Retrievals of vertical profiles of key atmospheric gases provide a critical long-term record from ground-based Fourier transform infrared (FTIR) solar absorption measurements. However, the characterization of the retrieved vertical profile structure can be difficult to validate, especially for gases with large vertical gradients and spatial–temporal variability such as water vapor. In this work, we evaluate the accuracy of the most common water vapor isotope (H216O, hereafter WV) FTIR retrievals in the lower and upper troposphere–lower stratosphere. Coincident high-quality vertically resolved WV profile measurements obtained from 2010 to 2016 with balloon-borne NOAA frost point hygrometers (FPHs) are used as reference to evaluate the performance of the retrieved profiles at two sites: Boulder (BLD), Colorado, and at the mountaintop observatory of Mauna Loa (MLO), Hawaii. For a meaningful comparison, the spatial–temporal variability has been investigated. We present results of comparisons among FTIR retrievals with unsmoothed and smoothed FPH profiles to assess WV vertical gradients. Additionally, we evaluate the quantitative impact of different a priori profiles in the retrieval of WV. An orthogonal linear regression analysis shows the best correlation among tropospheric layers using ERA-Interim (ERA-I) a priori profiles and biases are lower for unsmoothed comparisons. In Boulder, we found a negative bias of 0.02±1.9 % (r=0.95) for the 1.5–3 km layer. A larger negative bias of 11.1±3.5 % (r=0.97) was found in the lower free troposphere layer of 3–5 km attributed to rapid vertical change of WV, which is not always captured by the retrievals. The bias improves in the 5–7.5 km layer (1.0±5.3 %, r=0.94). The bias remains at about 13 % for layers above 7.5 km but below 13.5 km. At MLO the spatial mismatch is significantly larger due to the launch of the sonde being farther from the FTIR location. Nevertheless, we estimate a negative bias of 5.9±4.6 % (r=0.93) for the 3.5–5.5 km layer and 9.9±3.7 % (r=0.93) for the 5.5–7.5 km layer, and we measure positive biases of 6.2±3.6 % (r=0.95) for the 7.5–10 km layer and 12.6 % and greater values above 10 km. The agreement for the first layer is significantly better at BLD because the air masses are similar for both FTIR and FPH. Furthermore, for the first time we study the influence of different WV a priori profiles in the retrieval of selected gas profiles. Using NDACC standard retrievals we present results for hydrogen cyanide (HCN), carbon monoxide (CO), and ethane (C2H6) by taking NOAA FPH profiles as the ground truth and evaluating the impact of other WV profiles. We show that the effect is minor for C2H6 (bias <0.5 % for all WV sources) among all vertical layers. However, for HCN we found significant biases between 6 % for layers close to the surface and 2 % for the upper troposphere depending on the WV profile source. The best results (reduced bias and precision and r values closer to unity) are always found for pre-retrieved WV. Therefore, we recommend first retrieving WV to use in subsequent retrieval of gases.
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Bello Rodrigues, Eduardo, Pablo Heleno Sezerino, Daniele Damasceno Silveira, Everton Skoronski e Flávio Rubens Lapolli. "Utilização do biocarvão como meio filtrante de wetland construído vertical empregado no tratamento de esgoto bruto". Revista DAE 70, n. 235 (4 marzo 2022): 180–92. http://dx.doi.org/10.36659/dae.2022.029.
Testo completoAbstract (sommario):
A utilização de diferentes materiais filtrantes tem sido alvo de pesquisas no emprego da ecotecnologia tipo wetland construído no tratamento de águas residuárias a fim de melhorar a eficiência de remoção de poluentes. Neste sentido, o presente estudo objetivou a identificação das potencialidades da utilização do biocarvão como meio filtrante em um wetland construído de escoamento vertical tipo sistema francês (WV-SF), empregado no tratamento de esgoto bruto. O módulo estudado (3,10 m² de área superficial) operou ao longo de 7 meses com uma carga hidráulica média de 0,37 m.d-1, com alternância de 3,5 dias de alimentação e 3,5 dias em repouso. As eficiências globais de remoção de poluentes promovidas pelo WV-SF foram de 73%, 85%, 56%, 78% e 87% para DQO, DBO₅,₂₀ Ptotal, NTK e SST, respectivamente. A condição em que foi operado o WV-SF representa uma redução em 60% do requerimento de área superficial de um clássico wetland Sistema Francês de dois estágios. Desta forma, o biocarvão utilizado como material filtrante neste estudo se mostrou bastante eficaz e promissor para a remoção de contaminantes de águas residuárias por meio dos sistemas wetlands construídos; além de ser um material originário de um resíduo de usina termelétrica. Palavras-chave: Tratamento de esgoto bruto. Wetland construído. Biocarvão. Reaproveitamento de resíduos.
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Gordon, JR, e SJ Galli. "Phorbol 12-myristate 13-acetate-induced development of functionally active mast cells in W/Wv but not Sl/Sld genetically mast cell- deficient mice". Blood 75, n. 8 (15 aprile 1990): 1637–45. http://dx.doi.org/10.1182/blood.v75.8.1637.1637.
Testo completoAbstract (sommario):
Abstract The normal skin and other tissues of adult genetically mast cell- deficient WBB6F1-W/Wv or WCB6F1-Sl/Sld mice contain less than 1.0% the number of mast cells present in the corresponding tissues of the congenic normal (+/+) mice. We previously reported that mature dermal mast cells developed locally in the skin of W/Wv, but not Sl/Sld, mice at sites of chronic idiopathic dermatitis. We now report that the repeated application of phorbol 12-myristate 13-acetate (PMA) to the ear skin of either W/Wv or +/+ mice induces both dermatitis and a striking and dose-dependent increase in the number of dermal mast cells. The number of dermal mast cells at sites treated for 6 weeks with 5 micrograms PMA, three times per week, was 39 +/- 7/mm2 and 305 +/- 34/mm2 for W/Wv and +/+ mice, respectively; the corresponding values for vehicle-treated skin were 1.5 +/- 1.0/mm2 and 145 +/- 8/mm2, respectively. The PMA-induced dermal mast cells in W/Wv mice appeared mature by morphology, stained with the heparin-binding fluorescent dye, berberine sulfate, and were competent to express IgE-dependent passive cutaneous anaphylaxis responses. The development of mast cells was a local, not systemic, effect of PMA treatment. PMA treatment also induced dermatitis in both WCB6F1-Sl/Sld and +/+ mice, but was associated with increased numbers of dermal mast cells only in the WCB6F1(-)+/+ mice. PMA treatment had no detectable effect on the ability of bone marrow-derived cultured mast cells to survive in the skin of Sl/Sld mice. These findings establish a convenient model system for analyzing factors associated with the development of endogenous populations of mast cells in genetically mast cell-deficient W/Wv mice.
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Gordon, JR, e SJ Galli. "Phorbol 12-myristate 13-acetate-induced development of functionally active mast cells in W/Wv but not Sl/Sld genetically mast cell- deficient mice". Blood 75, n. 8 (15 aprile 1990): 1637–45. http://dx.doi.org/10.1182/blood.v75.8.1637.bloodjournal7581637.
Testo completoAbstract (sommario):
The normal skin and other tissues of adult genetically mast cell- deficient WBB6F1-W/Wv or WCB6F1-Sl/Sld mice contain less than 1.0% the number of mast cells present in the corresponding tissues of the congenic normal (+/+) mice. We previously reported that mature dermal mast cells developed locally in the skin of W/Wv, but not Sl/Sld, mice at sites of chronic idiopathic dermatitis. We now report that the repeated application of phorbol 12-myristate 13-acetate (PMA) to the ear skin of either W/Wv or +/+ mice induces both dermatitis and a striking and dose-dependent increase in the number of dermal mast cells. The number of dermal mast cells at sites treated for 6 weeks with 5 micrograms PMA, three times per week, was 39 +/- 7/mm2 and 305 +/- 34/mm2 for W/Wv and +/+ mice, respectively; the corresponding values for vehicle-treated skin were 1.5 +/- 1.0/mm2 and 145 +/- 8/mm2, respectively. The PMA-induced dermal mast cells in W/Wv mice appeared mature by morphology, stained with the heparin-binding fluorescent dye, berberine sulfate, and were competent to express IgE-dependent passive cutaneous anaphylaxis responses. The development of mast cells was a local, not systemic, effect of PMA treatment. PMA treatment also induced dermatitis in both WCB6F1-Sl/Sld and +/+ mice, but was associated with increased numbers of dermal mast cells only in the WCB6F1(-)+/+ mice. PMA treatment had no detectable effect on the ability of bone marrow-derived cultured mast cells to survive in the skin of Sl/Sld mice. These findings establish a convenient model system for analyzing factors associated with the development of endogenous populations of mast cells in genetically mast cell-deficient W/Wv mice.
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Weaver, Joseph E. "Control of Japanese Beetle Larvae on Golf Course Fairway, WV, 1995". Arthropod Management Tests 21, n. 1 (1 gennaio 1996): 353. http://dx.doi.org/10.1093/amt/21.1.353.
Testo completoAbstract (sommario):
Abstract Treatments were applied 27 Jul to plots 8 X 8 ft arranged in a RCBD, replicated 4 times. Granular materials were applied with a shaker jar. Liquid treatments were applied in 1 liter of water per plot with a sprinkling can. The plot area was irrigated after the last treatment had been applied with about ¼inch water using the golf course system. Water pH to apply was 6.85; to irrigate, about 8.0. Environmental conditions at start (8:30 am) and finish (9:35 am) of treatment applications were, respectively: air temperature, 23° C and 31.5° C; RH, 84% and 60%; overcast (fog) and clear (calm); soil temperatures (surface) 26° C and 32° C, (1 inch) 25.5° C and 29.5° C; soil moist from regular irrigation; soil type, loam; soil particle analysis, 40.7% sand, 46.6% silt, 12.7% clay; organic matter, 11.7%, pH 5.35; CEC, 23.81 meg/100 g; 1/3 bar, 31.29%. Thatch thickness ranged from 0.24 to 0.38 inches for 28 samples over plot area. Grub population was 100% Japanese beetle (pre- and post-treatment); avg no. grubs at treatment was 34.5/ft2 (59.4% mid to late 1st instar, 40.6% early 2nd instar). Efficacy was evaluated at 53 DAT using a cup changer to extract 4 plugs near the center of each plot to a depth of 2-3 inches and counting live larvae in each sample. The no. larvae for the 4 plugs from each plot was averaged to produce a mean for each replicate for statistical analysis.
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ZHU, JINGXIAN, MINGBIN ZHOU, ZHENRONG LI, ZHUO XU e XI YAO. "THE INVESTIGATION ON THE FORMATION OF (K0.5Na0.5)NbO3 PEROVSKITE PHASE IN MECHANOCHEMICAL SYNTHESIS". Journal of Advanced Dielectrics 01, n. 04 (ottobre 2011): 479–85. http://dx.doi.org/10.1142/s2010135x11000604.
Testo completoAbstract (sommario):
Lead-free (K0.5Na0.5)NbO3 (KNN) nanopowder with perovskite structure was synthesized by mechanochemical synthesis method successfully. In order to investigate the perovskite phase formation of KNN powders during the mechanochemical synthesis process, we set up three milling routes with different transmission ratios (Wv/Wp) acting on the mixed starting powders of Na2CO3, K2CO3 and Nb2O5 . KNN perovskite phase was not detected by XRD under the low transmission ratios -2 with the shock power of 273 W. When the transmission ratios was increased to -2.75 with the shock power of 683.4 W, KNN perovskite phase was formed after milling for 22 h. Based on these results, it has been found, that in shock mode process (SMP), that higher shock power is helpful for the formation KNN perovskite phase. The critical shock power P critical and critical weight-normalized cumulative shock energy [Formula: see text] in KNN system are discussed. Compared with SMP, when Wv/Wp = -3.5, in friction mode process (FMP), KNN perovskite phase was formed after milling for 5 h. It implies that FMP benefit the formation of KNN perovskite phase. The morphology of KNN powder was observed by transmission electron microscopy (TEM).
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Lopez, BS, Santiago, Cristhian Perez Torrico, BS e Connie DeLa'O, MD. "The Impact of COVID-19 Infection on Concurrent Traumatic Insults: An Analysis from the West Virginia Trauma System". West Virginia Medical Journal 119, n. 2 (giugno 2023): 30–35. http://dx.doi.org/10.21885/wvmj.2023.10.
Testo completoAbstract (sommario):
Introduction With the onset of the COVID-19 pandemic, elective surgeries were decreased and associated with worsened outcomes. Trauma outcomes have been varied, and rural traumas have not been solely analyzed. This study investigated outcomes related to COVID-19 infection at a rural Level I trauma center in West Virginia (WV). Methods A retrospective analysis of trauma outcomes of patients aged 18 years and older from March 30, 2020, until December 21, 2021, presenting to a Level I trauma center in WV was conducted. Data was collected from the John Michael Moore Trauma Center trauma registry. Mortality, complications, injury characteristics, comorbidities, and demographics were examined. Results Out of 2,118 patients tested for the novel coronavirus, 61 (1.7%) were positive (COV+). There was no significant increase in mortality regarding COVID-19 infection. COV+ patients had an increased length of stay (median 5.2 vs. 3.6, p=0.015) and intubation rates (21.3% vs. 12.5%, p=0.070), but fewer days on a ventilator (median, 2 vs. 3, p=0.012). COV+ patients were more likely to be discharged to rehabilitation centers, skilled nursing facilities, or long-term acute care hospitals (44.3% vs 34.5%), and less often routine or home measures (42.6% vs. 58.7%) (p=0.015). Conclusion This single retrospective study found increased rates of length of stay and intubation rates with no increased rates of mortality or complications in COV+ trauma patients compared to non-COV+ trauma patients. Further research is needed to validate and characterize the impact of COVID-19 for the entirety of the state.
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Demkowicz, MD, Ryan, P. Rocco LaSala, MD, Peter Stoilov, PhD, James Denvir, PhD, Jonathan Moddle e Peter Perrotta, MD. "COVID-19 Pandemic Effects on Seasonal Influenza Patterns in West Virginia". West Virginia Medical Journal 119, n. 2 (giugno 2023): 22–28. http://dx.doi.org/10.21885/wvmj.2023.09.
Testo completoAbstract (sommario):
Introduction The COVID-19 pandemic began in West Virginia (WV) in March 2020 at the end of the seasonal increase in influenza virus infections. Diagnostic and surveillance testing for influenza continued throughout the pandemic because these viruses cause similar diseases and the effects of SARS-CoV-2 on seasonal influenza patterns were unpredictable. Methods Positivity rates for SARS-CoV-2 and influenza viruses were studied using test results obtained from samples collected across an academic health system from July 2018 through June 2022. Trends in COVID-19 variants were assessed using data obtained from national and local databases. Data were analyzed to detect differences in and correlations between SARS-CoV-2 and influenza positivity rates. Results Test positivity rates were higher for the 602,109 SARS-CoV-2 tests than the 186,563 influenza tests performed during the study period (13.7% vs. 3.5%, p<0.0001). SARS-CoV-2 test positivity rose and fell with the emergence of SARS-CoV-2 variants of differing infectivity, being highest when the omicron variant predominated. Significant negative correlations between the number of SARS-CoV-2 and influenza positive tests were seen throughout stages of the pandemic. The normally expected influenza season did not occur during winter 2020 through spring 2021, and there were essentially no influenza cases during the delta surge. A more typical pattern of seasonal influenza was observed in late 2021 to early 2022 during the omicron surge. Conclusion There was an inverse correlation between SARS-CoV-2 and influenza test positivity rates observed throughout several COVID-19 surges in WV. The reasons for these correlations are unclear.
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Levio-Raiman, Marcela, Gabriela Briceño, Bárbara Leiva, Sebastián López, Heidi Schalchli, Claudio Lamilla, Cristian Bornhardt e M. Cristina Diez. "Treatment of Pesticide-Contaminated Water Using a Selected Fungal Consortium: Study in a Batch and Packed-Bed Bioreactor". Agronomy 11, n. 4 (12 aprile 2021): 743. http://dx.doi.org/10.3390/agronomy11040743.
Testo completoAbstract (sommario):
This study provides the basis for implementing a continuous treatment system for wastewater containing a pesticide mixture formed by atrazine, iprodione, and chlorpyrifos. Two fungal strains (Verticilium sp. H5 and Metacordyceps sp. H12) isolated from a biomixture of a biopurification system were able to remove different pesticide concentrations (10 to 50 mg L−1) efficiently from the liquid medium; however, the half-life of the pesticides was reduced and characterized by a T1/2 of 5.4 to 9.2 d for atrazine, 3.7 to 5.8 d for iprodione, and 2.6 to 2.9 d for chlorpyrifos using the fungal consortium. The immobilization of the fungal consortium in alginate bead was effective, with the highest pesticide removal observed using an inoculum concentration of 30% wv−1. The packed-bed reactor with the immobilized fungal consortium, which was operated in the continuous mode at different flow rates (30, 60, and 90 mL h−1), required approximately 10 d to achieve removal efficiency (atrazine: 59%; iprodione: 96%; chlorpyrifos: ~85%). The bioreactor was sensitive to flow rate fluctuations but was able to recover performance quickly. The pesticide metabolites hydroxyatrazine, 3,5-dichloroaniline, and 3,5,6-trichloro-2-pyridinol were produced, and a slight accumulation of 3,5,6-trichloro-2-pyridinol was observed. Nevertheless, reactor removal efficiency was maintained until the study ended (60 d).
Tesi sul tema "Wv 345"
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Oliver, Jason L. "The Creation of a Performance Edition of the Georg Christoph Wagenseil Concerto for Trombone with Attention Given to the Surviving Manuscripts and Primary Sources of Performance Practice from the Middle of the Eighteenth Century". Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc30500/.
Testo completoAbstract (sommario):
The Concerto for Trombone, written in 1763 by Georg Christoph Wagenseil, is a piece in 2 movements for alto trombone and chamber orchestra. The orchestration consists of 2 parts for violin, 1 part for viola, cello and string bass, 2 French horn parts and 2 parts for flute. It is the first concerto form solo work for the alto trombone and was written during a time when wide use of this instrument had been diminished from centuries past. The Concerto for Trombone helped mark the beginning of a time when the musical expressiveness of the trombone began to be noticed in chamber genres where such attention had been lacking in previous decades. Chapter 2 examines the life and musical background of the composer. Chapter 3 discusses the history surrounding the possible origin of the Concerto and its performance history. Chapter 4 provides analytical insights into the construction and format of the piece. Chapter 5 details the creation of an urtext edition of the Concerto. Chapter 6 concludes this document with a performer's guide to the work based on the urtext edition of the solo trombone part to create the performance edition. This performance edition of the work includes historically informed solutions to the problematic technical elements of ornaments. The final section of the chapter makes suggestions regarding the preparation and performance of a historically informed version of the Concerto for Trombone.
Libri sul tema "Wv 345"
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Katsuyama, H. Sinus Floor Elevation Procedures (ITI Treatment Guide, Volume 5) (ITI Treatment Guides). Quintessence Pub Co, 2011.
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