PubMed Journals Articles About "Rodica Elena Petrea Honored Strathmore Lifetime Member" RSS

09:51 EST 16th December 2018 | BioPortfolio

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Showing "Rodica Elena Petrea Honored Strathmore Lifetime Member" PubMed Articles 1–25 of 1,900+

Measurement of the Ω_{c}^{0} Baryon Lifetime.

We report a measurement of the lifetime of the Ω_{c}^{0} baryon using proton-proton collision data at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0  fb^{-1} collected by the LHCb experiment. The sample consists of about 1000  Ω_{b}^{-}→Ω_{c}^{0}μ^{-}ν[over ¯]_{μ}X signal decays, where the Ω_{c}^{0} baryon is detected in the pK^{-}K^{-}π^{+} final state and X represents possible additional undetected particles in the decay. The Ω_{c}^{0} lifetim...

Honoring eight senior distinguished plant biologists from India.

We summarize here research contributions of eight stalwarts in photosynthesis research from India. These distinguished scientists (Shree Kumar Apte, Basanti Biswal, Udaya C. Biswal, Agepati S. Raghavendra, Attipalli Ramachandra Reddy, Prafullachandra Vishnu (Raj) Sane, Baishnab Charan Tripathy, and Dinesh C. Uprety) were honored on November 2, 2017, at the School of Life Sciences, University of Hyderabad. We include here two group photographs of this special event, which was organized by the Department of P...

Letter to the Editor. Transoral odontoidectomy: a time-honored rescue procedure.

Measurement of the Lifetime of the Doubly Charmed Baryon Ξ_{cc}^{++}.

The first measurement of the lifetime of the doubly charmed baryon Ξ_{cc}^{++} is presented, with the signal reconstructed in the final state Λ_{c}^{+}K^{-}π^{+}π^{+}. The data sample used corresponds to an integrated luminosity of 1.7  fb^{-1}, collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV. The Ξ_{cc}^{++} lifetime is measured to be 0.256_{-0.022}^{+0.024}(stat)±0.014(syst)  ps.

Phosphorescence Lifetime Imaging of Labile Zn in Mitochondria via a Phosphorescent Iridium(III) Complex.

Phosphorescence lifetime Zn imaging possesses the advantage over normal fluorescence imaging in offering the more accurate temporal-spatial Zn information. Herein, we report a new phosphorescent cyclometalated Ir(III) complex with a Zn-chelator bearing 1,10-phenanthrolin acting as ancillary ligand, Zin-IrDPA, which displays the specific Zn-induced enhancement of phosphorescence and phosphorescence lifetime, and the mitochondria-targeting ability. Moreover, its Zn-induced phosphorescence lifetime enhancement...

An air-breathing enzymatic cathode with extended lifetime by continuous laccase supply.

We present a novel concept of an air-breathing enzymatic biofuel cell cathode combined with continuous supply of unpurified laccase-containing supernatant of the white-rot fungus Trametes versicolor for extended lifetime. The air-breathing cathode design obviates the need for energy-intensive active aeration. In a corresponding long-term experiment at a constant current density of 50 µA cm, we demonstrated an increased lifetime of 33 days (cathode potential above 0.430 V vs. SCE), independent of en...

Single-shot time-gated fluorescence lifetime imaging using three-frame images.

Qualitative and quantitative measurements of complex flows demand for fast single-shot fluorescence lifetime imaging (FLI) technology with high precision. A method, single-shot time-gated fluorescence lifetime imaging using three-frame images (TFI-TGFLI), is presented. To our knowledge, it is the first work to combine a three-gate rapid lifetime determination (RLD) scheme and a four-channel framing camera to achieve this goal. Different from previously proposed two-gate RLD schemes, TFI-TGFLI can provide a ...

WASP (Write a Scientific Paper): The right to privacy.

The data protection directive of the EU was set up to allow the freedom of movement of people between member states. This has the consequence of allowing the freedom of transfer of data between member states in research. The paper discusses three cases discussed during the project to see whether RECs can refuse research based on concern for data protection in some member states. Since the directive is not, as commonly thought, intended to protect the rights and freedoms of individuals - something which is t...

Interactive effects of cumulative lifetime traumatic brain injuries and combat exposure on posttraumatic stress among deployed military personnel.

Growing research links Traumatic Brain Injury (TBI) with greater posttraumatic stress disorder (PTSD) symptoms. Much of this research has focused on the influence of the presence or severity of a single TBI while neglecting the potential cumulative effects of multiple TBIs incurred across an individual's lifetime on combat-related PTSD. The present study addressed this gap using a sample of 157 military service members and 4 civilian contractors who underwent structured TBI interviews at a military hospital...

CMOS Luminescence Imager With Ambient Light Compensation and Lifetime to Frequency Conversion.

This paper presents a novel CMOS image sensor for luminescence imaging with direct lifetime-dependent digital pulse frequency modulated output. Recently reported parasitic insensitive multicycle charge modulation scheme is applied to accumulate photon-generated charges in discrete programmable time windows over multiple exposures. An autoreset pulse serving as the digital output is generated by comparing the multicycle charge integrated output with a reference threshold. The detected luminescence's lifetime...

Race/ethnicity, nativity, and lifetime risk of mental disorders in US adults.

There has been no comprehensive examination of how race/ethnicity and nativity intersect in explaining differences in lifetime prevalence of mental disorders among Asian, Black, Latino, and White adults. This study aims to estimate racial/ethnic differences in lifetime risk of mental disorders and examine how group differences vary by nativity.

Search for a resource-based trade-off between lifetime reproductive effort and women's post-reproductive survival in preindustrial Sweden.

A reduced survival as a potential cost of high lifetime reproductive effort in women has intrigued human evolutionary biologists for more than a century. However, we do not currently have compelling evidence for the delayed survival costs of reproduction. Reasons for this may include several methodological issues like environmental confounding, measurement of individuals' lifetime reproductive effort using demographic data, and the practice of mortality selection that are all likely to compromise our abilit...

Lifetime risk of cardiometabolic mortality according to vitamin D status of middle and older-aged adults: NHANES III mortality follow-up.

The predictive value of total 25-hydroxyvitamin D (25(OH)D, a biomarker of vitamin D status) in relation to lifetime risk of cardiometabolic mortality is not known. The purpose of this study was to determine the association between standardized and annualized total 25(OH)D levels and lifetime risk for cardiometabolic mortality in middle- to older-aged adults. In this study, we followed up 7,958 participants in the Third National Health and Nutrition Examination Survey from 1988-1994 (NHANES III) until the o...

Supersymmetry-guided method for mode selection and optimization in coupled systems.

Single-mode operation of coupled optical systems, such as optical-fiber bundles, lattices of photonic waveguides, or laser arrays, requires an efficient method to suppress unwanted super-modes. Here, we propose a systematic supersymmetry-based approach to selectively eliminate modes of such systems by decreasing their lifetime relative to the lifetime of the mode of interest. The proposed method allows to explore the opto-geometric parameters of the coupled system and to maximize the relative lifetime of a ...

Cervical Cancer Screening Among Women by Birthplace and Percent of Lifetime Living in the United States.

The aim of the study was to provide national estimates of Pap test receipt, by birthplace, and percent of lifetime in the United States (US).

Kinetics of Lifetime Changes in Bimetallic Nanocatalysts Revealed by Quick X-ray Absorption Spectroscopy.

Alloyed metal nanocatalysts are of environmental and economic importance in a plethora of chemical technologies. During the catalyst lifetime, supported alloy nanoparticles undergo dynamic changes which are well-recognized but still poorly understood. Here, we apply high temperature O₂-H₂ redox cycling to mimic the lifetime changes in model Pt₁₃In₉ nanocatalysts, while monitoring the induced changes by in-situ quick X-ray absorption spectroscopy with second resolution. The different reaction steps...

The association between lifetime polytobacco use and intention to quit among HIV-positive cigarette smokers.

This secondary analysis aims to describe, over time, the relationship between HIV disease progression and intention to quit cigarette smoking among current monocigarette users with and without a lifetime history of polytobacco use.

Hookah Use among Russian adolescents: Prevalence and correlates.

Hookah use among adolescents is increasing globally. No prior studies in the published literature have examined hookah use among youth in the Russian Federation. We assessed demographic, psychological and behavioral factors associated with lifetime and past 30-day hookah use among Russian youth. This cross-sectional study was conducted in three areas of Bashkortostan, Russia. In 2015, we surveyed Russian high school students (n = 716) on socio-demographic characteristics, tobacco (cigarettes, e-cigarett...

Vibrational States and Nitrile Lifetimes of Cyanophenylalanine Isotopomers in Solution.

Nitrile lifetimes and the structure of the vibrational state space of 4 isotopomers of cyanophenylalanine in solution are calculated. While the frequency of the nitrile of the 4 isotopomers decreases in the order 12C14N, 12C15N, 13C14N, and 13C15N, the lifetime varies non-monotonically with the change in frequency. The vibrational properties of the molecules that control the lifetime are examined. The specific resonances that contribute to the lifetime are tuned by isotopic substitution and the magnitude of...

The formation during lifetime of arterio-venous shunt in developmental venous anomaly that caused intracerebral hemorrhage.

Developmental venous anomaly (DVA) or venous angioma is a common anomalyof cerebral veins that is found incidentally in the majority of cases.There are few cases of arteriovenous shunting in DVA associated with a more malignant course of the disease. Whether these DVAs with shunts are of congenital pathology or lifetime formations is unclear.

Consistency in Adults' Self-Reported Lifetime Use of Illicit Drugs: A Follow-Up Study Over 13 Years.

Surveys are considered the best source of data available on the prevalence of illicit drug use in the general adult population. The objective of the present study was to examine the consistency in self-reported lifetime use of illicit drugs.

Changing Times: Fluorescence-Lifetime Analysis of Amyloidogenic SF-IAPP Fusion Protein.

In a number of conformational diseases, intracellular accumulation of proteins bearing non-native conformations occurs. The search for compounds that are capable of hindering the formation and accumulation of toxic protein aggregates and fibrils is an urgent task. Present fluorescent methods of fibrils' detection prevent simple real-time observations. We suppose to use green fluorescent protein fused with target protein and fluorescence lifetime measurement technique for this purpose. The recombinant protei...

Enhancing the kinetic stability and lifetime of organic light-emitting diodes based on bipolar hosts by spiroconjugation.

We examined how to enhance the lifetime of organic light-emitting diodes (OLEDs) based on bipolar host molecules ET-HT, where ET and HT refer to electron and hole-transporting units, respectively, by analyzing their thermodynamic and kinetic stabilities. Our DFT calculations reveal that the thermodynamic stability of ET-HT is determined by that of its anion, which is difficult to improve by chemical modifications of ET and HT. The kinetic stability of ET-HT can be enhanced by the spiroconjugation between ET...

Fluorescence Lifetime Imaging Ophthalmoscopy (FLIO) of Macular Pigment.

To describe different patterns of macular pigment (MP) seen in fluorescence lifetime imaging ophthalmoscopy (FLIO) and to analyze ex vivo fluorescence characteristics of carotenoids.

Lifetime major depression and grey-matter volume

There is evidence of structural brain alterations in major depressive disorder (MDD), but little is known about how these alterations might be affected by age at onset or genetic vulnerability. This study examines whether lifetime episodes of MDD are associated with specific alterations in grey-matter volume, and whether those alterations vary according to sex or serotonin transporter-linked promoter region (5-HTTLPR) genotype (LL, SL or SS).

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