204 results match your criteria: "5151 State University Drive[Affiliation]"

Metalloporphyrinic metal-organic frameworks for enhanced photocatalytic degradation of a mustard gas simulant.

Chem Commun (Camb)

December 2024

Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, California 90032, USA.

Four metalloporphyrinic metal-organic frameworks (MOFs) were successfully synthesized and exhibited enhanced activities for the photooxidation of a sulfur mustard simulant, 2-chloroethyl ethyl sulfide (CEES). Among them, a Sn-porphyrin functionalized 2D MOF, namely CSLA-21-NH(Sn), showed a half-life of 1.5 min for CEES oxidation under blue LED, featuring as one of the fastest photocatalysts for CEES degradation.

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Objective: This case study evaluates a focal osteolytic lesion in the right sulcus sinus transversi of an isolated os occipitale.

Materials: The os occipitale is from a juvenile from the Cueva de Sangre at the Classic Period (250-900 CE) site of Dos Pilas, Guatemala METHODS: The lesion was examined macroscopically, microscopically, and radiographically.

Results: The oval lesion has a well-circumscribed margin, endocranial origin, and involves cortical destruction of the inner and outer tables.

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Theoretical Insights into the Vibrational Structure of Carbon Dioxide Rare-Gas Complexes.

J Phys Chem A

May 2024

Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, California 90032, United States.

Two new flexible-monomer two-body ab initio potential energy surfaces (PESs) for the neon and krypton van der Waals complexes with carbon dioxide were developed, extending our previous work on the Ar-CO molecule. The accuracy of the PESs was validated by their agreement with the vibrational spectrum of the rare-gas complexes. The intermolecular and intramolecular vibrational excitation energies were computed at the vibrational self-consistent field and vibrational configuration interaction levels of theory.

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Drivers of arthropod biodiversity in an urban ecosystem.

Sci Rep

January 2024

Marine and Environmental Section, Department of Biological Sciences, University of Southern California, Los Angeles, 90089, USA.

Our world is becoming increasingly urbanized with a growing human population concentrated around cities. The expansion of urban areas has important consequences for biodiversity, yet the abiotic drivers of biodiversity in urban ecosystems have not been well characterized for the most diverse group of animals on the planet, arthropods. Given their great diversity, comparatively small home ranges, and ability to disperse, arthropods make an excellent model for studying which factors can most accurately predict urban biodiversity.

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Sexual orientation and cognition in aging populations: Results from the Canadian Longitudinal Study on Aging.

Acta Psychol (Amst)

February 2024

Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, Ontario M5T 3M7, Canada; Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, 155 College Street, Toronto, Ontario M5T 3M7, Canada.

The current study utilized the Canadian Longitudinal Study on Aging (CLSA) data to investigate the relationship between sexual orientation and cognitive health of the aging population. Cognitive flexibility and verbal fluency were examined as outcome variables in the study. A total of 45,993 respondents were included in the analyses.

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Background: The merits and drawbacks of moral relevance models of addiction have predominantly been discussed theoretically, without empirical evidence of these potential effects. This study develops and evaluates a novel survey measure for assessing moral evaluations of patient substance misuse (ME-PSM).

Methods: This measure was tested on 524 health professionals (i.

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Does a child maltreatment report source predict differences in immediate and subsequent report outcomes?

Child Abuse Negl

January 2024

Brown School, Washington University in Saint Louis, One Brookings Drive, St. Louis, MO 63130, United States of America. Electronic address:

Background: Mandated reporting policies, a core response to the identification of child maltreatment, are widely debated. Currently, there are calls to abolish or scale back these policies to include only certain professionals. These calls warrant evaluation of whether there are any differences in child welfare outcomes based on report source.

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Constructing Physiological Defense Systems against Infectious Disease with Metal-Organic Frameworks: A Review.

ACS Appl Bio Mater

August 2023

Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, California 90032, United States.

The swift and deadly spread of infectious diseases, alongside the rapid advancement of scientific technology in the past several centuries, has led to the invention of various methods for protecting people from infection. In recent years, a class of crystalline porous materials, metal-organic frameworks (MOFs), has shown great potential in constructing defense systems against infectious diseases. This review addresses current approaches to combating infectious diseases through the utilization of MOFs in vaccine development, antiviral and antibacterial treatment, and personal protective equipment (PPE).

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Impact of Neighborhood Deprivation on Aging Sexual Minority People's Depression: Results from the CANUE and CLSA data.

Arch Gerontol Geriatr

September 2023

Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, Ontario, Canada M5T 3M7; Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, 155 College Street, Toronto, Ontario, Canada M5T 3M7.

As the aging population grows across the world, exploring the impact of social environment on minority populations' aging and well-being would be an essential step towards building an inclusive society. Using the Canadian Longitudinal Study on Aging (CLSA) and Canadian Urban Environmental Health Research Consortium (CANUE) data, the study investigated the relationship between deprivation and depression level in aging sexual minority people to examine how neighborhood level social and material deprivation influence mental health. 48,792 survey respondents were included in our analyses and the average age was 62.

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The novel coronavirus disease 2019 (COVID-19) pandemic abruptly disrupted the daily lives and health of college students across the United States. This study investigated several stressors (e.g.

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MOF-Polymer Mixed Matrix Membranes as Chemical Protective Layers for Solid-Phase Detoxification of Toxic Organophosphates.

ACS Appl Mater Interfaces

January 2023

State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.

Zirconium-based metal-organic frameworks (Zr-MOFs) have been demonstrated as potent catalysts for the hydrolytic detoxification of organophosphorus nerve agents and their simulants. However, the practical implementation of these Zr-MOFs is limited by the poor processability of their powdered form and the necessity of water media buffered by a volatile liquid base in the catalytic reaction. Herein, we demonstrate the efficient solid-state hydrolysis of a nerve agent simulant (dimethyl-4-nitrophenyl phosphate, DMNP) catalyzed by Zr-MOF-based mixed matrix membranes.

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Arginine Methylation of the PGC-1α C-Terminus Is Temperature-Dependent.

Biochemistry

January 2023

Schmid College of Science and Technology, Keck Center for Science and Engineering, Chapman University, 450 N. Center Street, Orange, California 92866, United States.

We set out to determine whether the C-terminus (amino acids 481-798) of peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α, UniProt Q9UBK2), a regulatory metabolic protein involved in mitochondrial biogenesis, and respiration, is an arginine methyltransferase substrate. Arginine methylation by protein arginine methyltransferases (PRMTs) alters protein function and thus contributes to various cellular processes. In addition to confirming methylation of the C-terminus by PRMT1 as described in the literature, we have identified methylation by another member of the PRMT family, PRMT7.

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pH-Responsive Metal-Organic Framework Thin Film for Drug Delivery.

Langmuir

December 2022

Department of Chemistry and Biochemistry, California State University Long Beach, 1250 Bellflower Boulevard, Long Beach, California90840, United States.

In this work, surface-supportive MIL-88B(Fe) was explored as a pH-stimuli thin film to release ibuprofen as a model drug. We used surface plasmon resonance microscopy to study the pH-responsive behaviors of MIL-88B(Fe) film in real time. A dissociation constant of (6.

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We tested the good genes ovulatory shift hypothesis through speed-dating, an ecologically valid paradigm with real life consequences. Fifteen speed-dating sessions of 262 single Asian Americans were held. We analyzed 850 speed-dates involving 132 men and 100 normally ovulating women, finding ovulatory shifts in the desirability of men with more masculine facial measurements (smaller eye-mouth-eye angle, larger lower face to full face height ratio, and smaller facial width to lower face height ratio) in the predicted direction.

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Metal-Organic Framework-Derived N-Doped Porous Carbon for a Superprotonic Conductor at above 100 °C.

Inorg Chem

December 2022

State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P.R. China.

Article Synopsis
  • Researchers are addressing the challenge of finding effective proton conductors for applications in high-temperature proton exchange membrane electrolysis cells (PEMECs) and fuel cells (PEMFCs) that operate above 100 °C.
  • This study introduces a novel N-doped porous carbon material, created from metal-organic frameworks (MOFs), specifically ZIF-8, which demonstrates excellent properties for high-performance proton conduction.
  • The resulting material, PA@ZIF-8-C, shows impressive low water swelling and proton conductivity over 10 S/cm at elevated temperatures, marking a significant advancement in the development of proton conductors.
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Unraveling Complex Local Protein Environments with 4-Cyano-l-phenylalanine.

J Phys Chem B

November 2022

Department of Chemistry, Franklin & Marshall College, P.O. Box 3003, Lancaster, Pennsylvania 17604-3003, United States.

We present a multifaceted approach to effectively probe complex local protein environments utilizing the vibrational reporter unnatural amino acid (UAA) 4-cyano-l-phenylalanine (pCNPhe) in the model system superfolder green fluorescent protein (sfGFP). This approach combines temperature-dependent infrared (IR) spectroscopy, X-ray crystallography, and molecular dynamics (MD) simulations to provide a molecular interpretation of the local environment of the nitrile group in the protein. Specifically, a two-step enantioselective synthesis was developed that provided an 87% overall yield of pCNPhe in high purity without the need for chromatography.

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Linking churches and parks to promote physical activity among Latinos: Rationale and design of the Parishes & Parks cluster randomized trial.

Contemp Clin Trials

December 2022

Archdiocese of Los Angeles, San Gabriel Pastoral Region, 16009 E Cypress, Irwindale, CA 91706, USA. Electronic address:

Background: Regular physical activity (PA) contributes to positive health outcomes, but a minority of US adults meet minimum guidelines for moderate-to-vigorous PA (MVPA) and muscle-strengthening, and Latinos are less likely than whites to meet these guidelines. Public parks can be leveraged for community PA but tend to be underutilized, while churches have reach within Latino communities and can influence parishioners' health.

Methods: We are conducting a cluster randomized controlled trial to examine the impact of a multilevel, faith-based intervention linking Catholic parishes (n = 14) to their local parks on adult Latino parishioners' (n = 1204) MVPA and health-related outcomes.

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We developed an integrated device composed of a single-probe Electroencephalogram (EEG) and Charge Coupled Device (CCD) based motion sensors for objective measurement of Attention-deficit Hyperactivity Disorder (ADHD). While the measurement of attention-deficit hyperactivity disorder (MAHD) relies on the EEG signal for the assessment of attention during a given structured task, the CCD sensor depicts the movement pattern of the subjects engaged in a continuous performance task. A statistical analysis of attention and movement patterns was performed, and the accuracy of completed tasks was analyzed using indigenously developed software.

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The Ethics of Blockchain in Organizations.

J Bus Ethics

February 2022

Department of Business Law, David Nazarian College of Business and Economics, California State University, Northridge, 18111 Nordhoff St., Northridge, CA 91330 USA.

Blockchain is an open digital ledger technology that has the capability of significantly altering the way that people operations (i.e. human resource management) operate in organizations.

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Crystallization in Zirconia Film Nano-Layered with Silica.

Nanomaterials (Basel)

December 2021

Department of Engineering, University of Sannio at Benevento, C.so Garibaldi 107, Pal. dell'Aquila Bosco-Lucarelli, and INFN, Sezione di Napoli Gruppo Collegato di Salerno, Piazza Guerrazzi, 82100 Benevento, Italy.

Gravitational waves are detected using resonant optical cavity interferometers. The mirror coatings' inherent thermal noise and photon scattering limit sensitivity. Crystals within the reflective coating may be responsible for either or both noise sources.

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Acidic Groups Functionalized Carbon Dots Capping Channels of a Proton Conductive Metal-Organic Framework by Coordination Bonds to Improve the Water-Retention Capacity and Boost Proton Conduction.

ACS Appl Mater Interfaces

December 2021

State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. China.

Crystalline porous materials, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), have been demonstrated to be versatile material platforms for the development of solid proton conductors. However, most crystalline porous proton conductors suffer from decreasing proton conductivity with increasing temperature due to releasing water molecules, and this disadvantage severely restricts their practical application in electrochemical devices. In this work, for the first time, hydrophilic carbon dots (CDs) were utilized to hybridize with high proton conductivity MOF-802, which is a model of MOF proton conductors, aiming to improve its water-retention capacity and thus enhance proton conduction.

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Molecular Analysis of Elements of Melanoma Insensitivity to TCR-Engineered Adoptive Cell Therapy.

Int J Mol Sci

October 2021

Department of Biological Sciences, College of Natural and Social Sciences, California State University, Los Angeles (CSULA), 5151 State University Drive, Los Angeles, CA 90032, USA.

Metastatic melanoma accounts for the highest number of skin cancer-related deaths. Traditional treatments are ineffective due to their inability to induce tumor regression at a high rate. Newer treatments such as immune checkpoint inhibitors (ICI), targeted therapy (BRAFi and MEKi), and T cell receptor (TCR)-engineered T cells aim to increase the ability of the host immune system to recognize and eradicate tumors.

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Feedbacks are an essential feature of resilient socio-economic systems, yet the feedbacks between biodiversity, ecosystem services and human wellbeing are not fully accounted for in global policy efforts that consider future scenarios for human activities and their consequences for nature. Failure to integrate feedbacks in our knowledge frameworks exacerbates uncertainty in future projections and potentially prevents us from realizing the full benefits of actions we can take to enhance sustainability. We identify six scientific research challenges that, if addressed, could allow future policy, conservation and monitoring efforts to quantitatively account for ecosystem and societal consequences of biodiversity change.

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Social Justice and Sociological Theory.

Society

August 2021

Department of Sociology, California State University, Los Angeles, 5151 State University Drive, Los Angeles, CA 90032 USA.

Article Synopsis
  • Sociology is the study of social life and differs from social justice efforts, but the two are closely related as social justice concepts emerge from sociological understanding.
  • Many social justice activists focus predominantly on conflict theory and critical theory, which may limit their perspective on addressing social issues.
  • By relying only on conflict theory, activists might miss out on other sociological approaches that could foster understanding, promote virtue, and enhance social solidarity for more effective reforms.
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Reliability of phenotype estimation and extended classification of ancestry using decedent samples.

Int J Legal Med

November 2021

Human Genomics Unit, Los Angeles County Department of Medical Examiner-Coroner, 1104 N Mission Road, Los Angeles, CA, 90033, USA.

The Illumina® MiSeq FGx™, in conjunction with the ForenSeq™ DNA Signature Prep kit, produces genotypes of the CODIS-required short tandem repeats and provides phenotype and biogeographical ancestry estimations via phenotype-informative and ancestry-informative markers, respectively. Although both markers have been validated for use in forensic biology, there is little data to determine the practical utility of these estimations to assist in identifying missing persons using decedent casework samples. The accuracy and utility of phenotypic and ancestral estimations were investigated for 300 samples received by the Los Angeles County Department of Medical Examiner-Coroner.

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