Organic scintillators doped with capture agents provide a detectable signal for neutrons over broad energy range. This work characterizes the fast and slow neutron response of EJ-254, an organic plastic scintillator 5% natural boron loading by weight. For neutrons, primary mechanism light generation in is n-p elastic scattering. To study response, proton yield EJ-254 was measured at 88-Inch Cyc...

Review of: Ely C. (2022) Russian Populism: A History, Bloomsbury Publishing. 254 p. Citation: Nikulin A., Trotsuk I.

OBJECTIVES Published negative studies should have the same rigour of methodological quality as studies with positive findings. However, the methodological quality of negative versus positive studies is not known. The objective was to assess the reported methodological quality of positive versus negative studies published in Indian medical journals. DESIGN A systematic review (SR) was performe...

One of the most important routes of transmission for Toxoplasma gondii infection is the ingestion of foods contaminated with cat feces containing sporulated oocysts. The diagnosis of T. gondii infection by fecal microscopy is complicated, as other similar coccidian oocysts are often present in the same fecal specimen. This study aimed to identify T. gondii oocysts in cat feces using a novel PCR...

The photocatalytic process using TiO(2) and coupled semiconductor in the photodegradation reaction of 4-chlorophenol (4-CP) was investigated. Nanosized titanium dioxide powder was synthesized via the sol-gel procedure and modified via the coupled photocatalysts. The microstructural and chemical properties of TiO(2) and coupled CdSe/TiO(2) were also examined. For CdSe/TiO(2) samples, the specifi...

UV radiation from the sun is the primary germicide in the environment. The goal of this study was to estimate inactivation of viruses by solar exposure. We reviewed published reports on 254-nm UV inactivation and tabulated the sensitivities of a wide variety of viruses, including those with double-stranded DNA, single-stranded DNA, double-stranded RNA, or single-stranded RNA genomes. We calcula...

Two types of Escherichia coli mutants tolerant to beta-lactam antibiotics were isolated. One is E. coli chi2452, which showed a tolerant response against beta-lactam antibiotics when grown at 42 degrees C, and the others are the mutants C-80 and C-254, selected from mutagenized E. coli chi1776 by cycles of exposure to ampicillin, cephaloridine, and starvation of the nutritionally required diami...

We have previously shown that 207-nm ultraviolet (UV) light has similar antimicrobial properties as typical germicidal UV light (254 nm), but without inducing mammalian skin damage. The biophysical rationale is based on the limited penetration distance of 207-nm light in biological samples (e.g. stratum corneum) compared with that of 254-nm light. Here we extended our previous studies to 222-nm...

BACKGROUND Menopause represents the end of women reproductive career and it is at this time they begin to manifest morbidities such as urinary incontinence. AIM To document proximate determinants of sexual activity and urological morbidities of menopausal women. SUBJECTS AND METHODS This was a community survey conducted among 254 menopausal women Mokola in Ibadan, Nigeria in 2008. Responden...