Comparison of high capacity tensiometer designs for long-term suction measurements

Publication date: Available online 24 December 2019Source: Physics and Chemistry of the Earth, Parts A/B/CAuthor(s): J. Mendes, D. GallipoliAbstractThis paper investigates the long-term measurement of negative (tensile) pore-water pressures in soils by using high capacity tensiometers (HCTs). Seven different HCT prototypes were designed and manufactured by using different porous filters, pressure transducers, water reservoirs and protective casings. The ability of these prototypes to record negative pore-water pressures over long times was initially assessed by a series of measurements on small clay samples equalized at different suction levels. These tests were followed by two larger scale experiments in which four HCT prototypes were simultaneously installed inside a lysimeter filled with a sandy soil alongside two standard dielectric permittivity sensors measuring suction and water content, respectively. In one experiment, the soil was left to dry until all four HCTs cavitated while, in another test, the soil was allowed to dry up to an intermediate level of suction before triggering a rainfall, after which the soil was left to dry again until all four HCTs cavitated. In each lysimeter experiment, the readings of the HCTs were reasonably consistent, which suggests that sensor design has little effect on the accuracy of measurements. These experiments also indicated that HCTs are more accurate and exhibit a faster response than standard dielectric permittivity sensors. More...
Source: Physics and Chemistry of the Earth, Parts ABC - Category: Science Source Type: research

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Publication date: Available online 21 February 2020Source: Research in Veterinary ScienceAuthor(s): Aysun Yilmaz, Sajid Umar, Nuri Turan, Ozge Aydin, H. Emre Tali, Tuba C. Oguzoglu, Huseyin Yilmaz, Juergen A. Richt, Mariette F. DucatezAbstractBovine respiratory infections are the most economically important diseases affecting the cattle industry worldwide including Turkey. Influenza D virus (IDV) could play an important role to trigger bovine respiratory disease (BRD) complex. Since, there is no data about the presence and genotypes of IDV in Turkish cattle herds; this study was performed to investigate IDV in cattle in Tu...
Source: Research in Veterinary Science - Category: Veterinary Research Source Type: research
The objective of this study was to investigate possible myocardial damage in goats affected with PT by the determination of serum myocardial enzyme cTnI and CK-MB. A total of 44 goats affected with PT, and 10 apparently healthy goats (control group or CG) were used in the study. In goats with PT, the serum concentrations of cTnI (0.43 ng/mL) were significantly higher than that in CG goats (0.06 ng/mL). Although CK-MB showed no significant difference, it was approximately three times higher in animals with PT. The serum concentrations of insulin were significantly lower in PT goats (5.03 ppmol/L) compared to CG goats (1...
Source: Research in Veterinary Science - Category: Veterinary Research Source Type: research
Publication date: Available online 20 February 2020Source: Research in Veterinary ScienceAuthor(s): Vinod Ahuja, David Ward, Rukhshona Rajabov, Anni McLeod, Ron JacksonAbstractIn the context of significant public health benefits of brucellosis control and shrinking public resources for livestock vaccination, this paper considers the willingness of small ruminant livestock owners to pay for vaccination of their animals against brucellosis. The willingness to pay is estimated through a binary choice contingent valuation approach using data from a rural household survey specially designed for this purpose. The survey was cond...
Source: Research in Veterinary Science - Category: Veterinary Research Source Type: research
Publication date: April 2020Source: Research in Autism Spectrum Disorders, Volume 72Author(s): Emily C. Sartini, Victoria Knight, Amy D. Spriggs, R. Allan AlldayAbstractThe purpose of this study was to investigate the effects of systematic instruction combined with a self-directed video prompt to teach text comprehension skills to students with autism spectrum disorder. Participants included four elementary school students with autism spectrum disorder. A multiple probe across participants design was used to evaluate the intervention's effectiveness. Results indicated the intervention was successful for all participants. A...
Source: Research in Autism Spectrum Disorders - Category: Psychiatry Source Type: research
We present a 6-year-old boy with unilateral retinoblastoma of the left eye. MRI showed an intraocular tumor that extended into the optic nerve beyond the lamina cribrosa. The affected eye was enucleated and the optic nerve resection margin proved to be free. Following protocol, this patient received six courses of adjuvant systemic chemotherapy. Unfortunately, after 5 months this patient returned with the leptomeningeal spread of the tumor and died quickly thereafter.Histopathologic analysis of the enucleated eye and distal optic nerve revealed that the postlaminar tumor cells occupied the entire width of the optic nerve, ...
Source: Ophthalmic Genetics - Category: Opthalmology Tags: Ophthalmic Genet Source Type: research
Conclusion: Eyes with retinoblastoma that failed chemotherapy followed by focal therapy were controlled with EBRT. However, the presence of vitreous seeds, stage migration during the course of chemotherapy, as well as good vision in the other eye may not justify the known risks of EBRT. PMID: 32072842 [PubMed - as supplied by publisher]
Source: Ophthalmic Genetics - Category: Opthalmology Tags: Ophthalmic Genet Source Type: research
Authors: Kaprio T, Hagström J, Andersson LC, Haglund C Abstract CD63, a member of the tetraspanin family, is expressed in endosomes and enriched in exosomes. Tetraspanins participate in a variety of physiological processes, including cellular differentiation, cell-cell fusion, and cell migration. CD63 reportedly carries both protumorigenic and tumor suppressor properties, and appears to be upregulated in breast cancer, astrocytoma, and melanoma. Yet, the effect of CD63 on cancer prognosis remains unclear, and no previous reports examined it in colorectal cancer (CRC). Identifying novel biomarkers will allow us...
Source: Histology and Histopathology - Category: Cytology Tags: Histol Histopathol Source Type: research
Authors: Gao J, Tian Z, Yang X Abstract The coronavirus disease 2019 (COVID-19) virus is spreading rapidly, and scientists are endeavoring to discover drugs for its efficacious treatment in China. Chloroquine phosphate, an old drug for treatment of malaria, is shown to have apparent efficacy and acceptable safety against COVID-19 associated pneumonia in multicenter clinical trials conducted in China. The drug is recommended to be included in the next version of the Guidelines for the Prevention, Diagnosis, and Treatment of Pneumonia Caused by COVID-19 issued by the National Health Commission of the People's Republi...
Source: BioScience Trends - Category: Biomedical Science Tags: Biosci Trends Source Type: research
Authors: Shen F, Zhu B, Ding Y, Gao M, He N Abstract People living with HIV (PLWH) have an excess risk of cardiovascular diseases (CVD). Electrocardiographic (ECG) abnormalities are independently predictive of incident cardiovascular events in the general population. Our study aimed to evaluate the prevalence and correlates of ECG abnormalities among PLWH in Shanghai, China. We used a cross-sectional design to collect data from Shanghai Public Health Clinical Center, China. A total of 587 HIV-infected patients aged between 18 and 75 years were recruited between January 2015 and February 2016. The overall prevalence...
Source: BioScience Trends - Category: Biomedical Science Tags: Biosci Trends Source Type: research
Publication date: Available online 20 February 2020Source: Statistics &Probability LettersAuthor(s): Martin Forde, Benjamin SmithAbstractWe compute E(Xt|(Xs)0≤s≤L) for the standard Bacry-Muzy log-correlated Gaussian field X with covariance log+Tt−s, which corrects the finite-horizon prediction formula in Vargas et al. (Duchon et al., 0000). The problem can be viewed as a linear filtering problem, and we solve the problem by showing that the L2(P) closure of {∫[0,L]ϕ(s)Xsds:ϕ∈S,supp(ϕ)⊆[0,L]} is equal to {X(ϕ):ϕ∈H−12,supp(ϕ)⊆[0,L]}, where X(ϕ) is defined as a continu...
Source: Statistics and Probability Letters - Category: Statistics Source Type: research
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