271 results match your criteria: "Graduate School and University Center[Affiliation]"

Optimization of Existing RNA Visualization Methods Reveals Novel Dendritic mRNA Dynamics.

Front Biosci (Landmark Ed)

December 2024

Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA.

Background: Spatial-temporal control of mRNA translation in dendrites is important for synaptic plasticity. In response to pre-synaptic stimuli, local mRNA translation can be rapidly triggered near stimulated synapses to supply the necessary proteins for synapse maturation or elimination, and 3' untranslated regions (UTRs) are responsible for proper localization of mRNAs in dendrites. Although is a robust technique for analyzing RNA localization in fixed neurons, live-cell imaging of RNA dynamics remains challenging.

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Carotenoids: resources, knowledge, and emerging tools to advance apocarotenoid research.

Plant Sci

January 2025

Department of Biological Sciences, Lehman College, City University of New York (CUNY), Bronx, NY,  United States; Graduate School and University Center, CUNY, New York, NY, United States. Electronic address:

Carotenoids are a large class of isoprenoid compounds which are biosynthesized by plants, algae, along with certain fungi, bacteria and insects. In plants, carotenoids provide crucial functions in photosynthesis and photoprotection. Furthermore, carotenoids also serve as precursors to apocarotenoids, which are derived through enzymatic and non-enzymatic cleavage reactions.

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This study delves into the magneto-electronic and magneto-optical properties of stacking-modulated bilayer graphene. By manipulating domain walls (DWs) across AB-BA domains periodically, we unveil oscillatory Landau subbands and the associated optical excitations. The DWs act as periodic potentials, yielding fascinating 1D spectral features.

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ALYREF/THOC4 expression and cell growth modulation in retinoblastoma.

Pathol Res Pract

August 2024

Department of Biological Sciences, Lehman College/City University of New York, Bronx, NY, USA; Department of Biological Sciences, Bronx Community College/City University of New York,  2155 University Avenue, Bronx, NY 10453, USA. Electronic address:

In this study, we tested the hypothesis that ALYREF/THOC4, a poor prognostic factor in different cancer types, has potential as a drug target and prognostic biomarker for retinoblastoma (RB). Immunostaining (IHC), Western blot, and RT-qPCR analyses detected overexpression of ALYREF in the RB cell lines Y79, RB143, WERI-RB1, and RB116. IHC analysis on RB tumor array showed that 11/14 of RB tumors were ALYREF+ to varying degrees, with eight tumors at maximum 3+ intensity.

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The ground state of 3d1 MnO42- was studied by density functional theory (DFT) and complete active space self-consistent field (CASSCF) methods in terms of a variety of molecular point group structures to ascertain the site and Jahn-Teller (JT) distortion effect. Modeling results from UB3LYP/6-31+G(d) calculations with natural bond orbital analysis show the four Mn-O bonds are coordinate covalent. The one-electron matrix elements from CASSCF(AILFT) (ab initio ligand field theory) with a second order perturbation treatment were used to calculate the parameters of the angular overlap model.

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Objective: Critical thinking and accurate case analysis is difficult to quantify even within the context of routine morbidity and mortality reporting. We designed and implemented a HIPAA-compliant adverse outcome reporting system that collects weekly resident assessments of clinical care across multiple domains (case summary, complications, error analysis, Clavien-Dindo Harm, cognitive bias, standard of care, and ACGME core competencies). We hypothesized that incorporation of this system into the residency program's core curriculum would allow for identification of areas of cognitive weakness or strength and provide a longitudinal evaluation of critical thinking development.

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Background: The velocity storage mechanism of the central vestibular system is closely associated with the vestibulo-ocular reflex (VOR), but also contributes to the sense of orientation in space and the perception of self-motion. We postulate that mal de débarquement syndrome (MdDS) is a consequence of inappropriate sensory adaptation of velocity storage. The premise that a maladapted velocity storage may be corrected by spatial readaptation of the VOR has recently been translated into the development of the first effective treatment for MdDS.

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How trace plots help interpret meta-analysis results.

Res Synth Methods

May 2024

Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany.

The trace plot is seldom used in meta-analysis, yet it is a very informative plot. In this article, we define and illustrate what the trace plot is, and discuss why it is important. The Bayesian version of the plot combines the posterior density of , the between-study standard deviation, and the shrunken estimates of the study effects as a function of .

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We investigated the dynamics of Bose-Einstein condensates (BECs) under an external periodic potential. We consider two such systems, the first being made of exciton-polaritons in a nanoribbon of transition metal dichalcogenides (TMDCs), such as MoSe[Formula: see text], embedded in a microcavity with a spatial curvature, which serves as the source of the external periodic potential. The second, made of bare excitons in a nanoribbon of twisted TMDC bilayer, which naturally creates a periodic Moiré potential that can be controlled by the twist angle.

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Anisotropic optical conductivities of model topological nodal-line semimetals.

J Phys Condens Matter

October 2023

The Graduate School and University Center, The City University of New York, New York, NY 10016, United States of America.

With the use of simple models, we investigated the optical conductivity of a nodal-line semimetal (NLSM) whose crossing of the conduction and valence bands near the origin (point) in the (kx,ky) plane of a small cubic region can be adjusted by a parameter. The Hamiltonian of the NLSM is based on thek⋅pmodel for the low-lying energy bands. When = 0, these bands touch each other along a continuous closed loop but the opening of a band gap corresponding to finite values ofand the varying of the carrier concentration can be adjusted.

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Diminazene aceturate (DIZE) is an FDA-listed small molecule known for the treatment of African sleeping sickness. In vivo studies showed that DIZE may be beneficial for a range of human ailments. However, there is very limited information on the effects of DIZE on human cancer cells.

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Effects of a physical education intervention on attention and inhibitory control in Ecuadorian children with intellectual disabilities.

J Intellect Disabil

March 2024

MTA-ELTE Language-Learning Disorders Research Group, Bárczi Gusztáv Faculty of Special Needs Education, Eötvös Loránd University, Budapest, Hungary; Brooklyn College, City University of New York, Brooklyn, NY, USA; Graduate School and University Center, City University of New York, New York, NY, USA.

Studies on physical activity interventions indicated a facilitative effect on cognitive performance in persons with intellectual disabilities; however, research is scarce, especially in low/middle-income countries. We explored the effects of a 6-week enriched physical education program on inhibitory control and attention functions in Ecuadorian children with intellectual disabilities. Thirty children with mild intellectual disabilities (10-14 years old) were randomly assigned to an intervention or control group.

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We report here the first dinosaur skeletal material described from the marine Fox Hills Formation (Maastrichtian) of western South Dakota. The find consists of two theropod pedal phalanges: one recovered from the middle part of the Fairpoint Member in Meade County, South Dakota; and the other from the Iron Lightning Member in Ziebach County, South Dakota. Comparison with pedal phalanges of other theropods suggests strongly that the Fairpoint specimen is a right pedal phalanx, possibly III-2, from a large ornithomimid.

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Introduction: Diabetic Retinopathy (DR) is a potentially blinding retinal disorder that develops through the pathogenesis of diabetes. The lack of disease predictors implies a poor prognosis with frequent irreversible retinal damage and vision loss. Extracellular Vesicles (EVs) present a novel opportunity for pre-symptomatic disease diagnosis and prognosis, both severely limited in DR.

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Introduction: Practice-Based Learning and Improvement, a core competency identified by the Accreditation Council for Graduate Medical Education, carries importance throughout a physician's career. Practice-Based Learning and Improvement is cultivated by a critical review of complications, yet methods to accurately identify complications are inadequate. Machine-learning algorithms show promise in improving identification of complications.

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Purpose: This study aimed to identify predictors of response to treatment for residual speech sound disorder (RSSD) affecting English rhotics. Progress was tracked during an initial phase of traditional motor-based treatment and a longer phase of treatment incorporating ultrasound biofeedback. Based on previous literature, we focused on baseline stimulability and sensory acuity as predictors of interest.

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Enzymatic isomerization of ζ-carotene mediated by the heme-containing isomerase Z-ISO.

Methods Enzymol

July 2022

Department of Biological Sciences, Lehman College, City University of New York (CUNY), Bronx, NY, United States; Graduate School and University Center, CUNY, New York, NY, United States. Electronic address:

Carotenoids are a large and diverse class of isoprenoid compounds synthesized by plants, algae, some bacteria, arthropods, and fungi. These pigments contribute to plant growth and survival by protecting plants from photooxidative stress and serving as precursors of plant hormones and other signaling compounds. In humans, carotenoids are essential components of the diet and contribute anti-oxidant and provitamin A activities.

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Analysis of plant-derived carotenoids in camouflaging stick and leaf insects (Phasmatodea).

Methods Enzymol

July 2022

Department of Biological Sciences, Lehman College, City University of New York (CUNY), Bronx, NY, United States; Graduate School and University Center, City University of New York, New York, NY, United States.

A common way to avoid predators is by use of camouflage, a strategy which the stick and leaf insects (Phasmatodea) have refined by appearing as leaves, sticks, lichen, and moss. Stick and leaf insects have perfected their camouflage by sequestering diet-based carotenoids within their exoskeleton. Visual and chemical details of such camouflage have likely been influenced through the millennia of co-evolution between these insects and the plants they mimic.

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Monitoring biodiversity change is key to effective conservation policy. While it is difficult to establish biodiversity monitoring programs at broad geographical scales, remote sensing advances allow for near-real time Earth observations that may help with this goal. We combine periodical and freely available remote sensing information describing temperature and precipitation with curated biological information from several groups of animals and plants in the Brazilian Atlantic rainforest to design an indirect remote sensing framework that monitors potential loss and gain of biodiversity in near-real time.

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Quivers, Lattice Gauge Theories, and Fractons.

Phys Rev Lett

June 2022

Department of Physics, Universidad de Oviedo, C/ Federico García Lorca 18, 33007, Oviedo, Spain.

We argue that quiver gauge theories with SU(N) gauge groups give rise to lattice gauge theories with matter possessing fractonic properties, where the lattice is the quiver itself. This idea extends a recent proposal by Razamat. This class of theories exhibit a Z_{N} 1-form global symmetry that can be used to classify their phases.

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Superfluidity of Dipolar Excitons in a Double Layer of - with a Mass Term.

Nanomaterials (Basel)

April 2022

US Military Academy at West Point, 606 Thayer Road, West Point, NY 10996, USA.

We predict Bose-Einstein condensation and superfluidity of dipolar excitons, formed by electron-hole pairs in spatially separated gapped hexagonal α-T3 (GHAT3) layers. In the α-T3 model, the AB-honeycomb lattice structure is supplemented with C atoms located at the centers of the hexagons in the lattice. We considered the α-T3 model in the presence of a mass term which opens a gap in the energy-dispersive spectrum.

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We study direct and indirect pseudomagnetoexcitons, formed by an electron and a hole in the layers of gapped graphene under strain-induced gauge pseudomagnetic field. Since the strain-induced pseudomagnetic field acts on electrons and holes the same way, it occurs that the properties of single pseudomagnetoexcitons, their collective effects and phase diagram are cardinally different from those of magnetoexcitons in a real magnetic field. We have derived wave functions and energy spectrum of direct in a monolayer and indirect pseudomagnetoexcitons in a double layer of gapped graphene.

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Two-Loop Four-Fermion Scattering Amplitude in QED.

Phys Rev Lett

January 2022

Dipartimento di Fisica, Università di Napoli Federico II and INFN, Sezione di Napoli, I-80126 Napoli, Italy.

We present the first fully analytic evaluation of the transition amplitude for the scattering of a massless into a massive pair of fermions at the two-loop level in quantum electrodynamics. Our result is an essential ingredient for the determination of the electromagnetic coupling within scattering reactions, beyond the currently known accuracy, which has a crucial impact on the evaluation of the anomalous magnetic moment of the muon. It will allow, in particular, for a precise determination of the leading hadronic contribution to the (g-2)_{μ} in the MUonE experiment at CERN, and therefore can be used to shed light on the current discrepancy between the standard model prediction and the experimental measurement for this important physical observable.

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Extracellular vesicles released by human retinal pigment epithelium mediate increased polarised secretion of drusen proteins in response to AMD stressors.

J Extracell Vesicles

November 2021

CellSight Ocular Stem Cell and Regeneration Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado, School of Medicine, Aurora, Colorado, USA.

Age-related macular degeneration (AMD) is a leading cause of blindness worldwide. Drusen are key contributors to the etiology of AMD and the ability to modulate drusen biogenesis could lead to therapeutic strategies to slow or halt AMD progression. The mechanisms underlying drusen biogenesis, however, remain mostly unknown.

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The mechanisms underlying retinal development have not been completely elucidated. Extracellular vesicles (EVs) are novel essential mediators of cell-to-cell communication with emerging roles in developmental processes. Nevertheless, the identification of EVs in human retinal tissue, characterization of their cargo, and analysis of their potential role in retina development has not been accomplished.

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