977,335 results match your criteria: "California; Semel Institute for Neuroscience and Human Behavior Irwin[Affiliation]"
Neurophotonics
January 2025
California Institute of Technology, Department of Electrical Engineering, Pasadena, California, United States.
Significance: Cerebral blood flow (CBF) and cerebral blood volume (CBV) are key metrics for regional cerebrovascular monitoring. Simultaneous, non-invasive measurement of CBF and CBV at different brain locations would advance cerebrovascular monitoring and pave the way for brain injury detection as current brain injury diagnostic methods are often constrained by high costs, limited sensitivity, and reliance on subjective symptom reporting.
Aim: We aim to develop a multi-channel non-invasive optical system for measuring CBF and CBV at different regions of the brain simultaneously with a cost-effective, reliable, and scalable system capable of detecting potential differences in CBF and CBV across different regions of the brain.
Front Toxicol
January 2025
Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA, United States.
Primary cell cultures from rodent brain are widely used to investigate molecular and cellular mechanisms of neurotoxicity. To date, however, it has been challenging to reliably culture endogenous microglia in dissociated mixed cultures. This is a significant limitation of most neural cell models given the growing awareness of the importance of interactions between neurons, astrocytes and microglia in defining responses to neurotoxic exposures.
View Article and Find Full Text PDFAdv Ther (Weinh)
January 2025
Division of Plastic & Reconstructive Surgery, University of California, Los Angeles David Geffen School of Medicine, Los Angeles, CA, 90095, USA.
Tissue regeneration involves dynamic dialogue between and among different cells and their surrounding matrices. Bone regeneration is specifically governed by reciprocity between osteoblasts and osteoclasts within the bone microenvironment. Osteoclast-directed resorption and osteoblast-directed formation of bone are essential to bone remodeling, and the crosstalk between these cells is vital to curating a sequence of events that culminate in the creation of bone tissue.
View Article and Find Full Text PDFCureus
December 2024
Prosthodontics, Government Dental College, Kozhikode, IND.
Background: Digital dentistry has transformed all aspects of dentistry, especially prosthodontics, and is increasingly used for diagnosis, treatment planning, execution, student training, and research. This study aimed to assess the perception, attitude, and practice of digital technology in prosthodontics among dental professionals in Kerala, India.
Materials And Methods: A cross-sectional, questionnaire-based study was conducted among dental professionals in Kerala.
Cureus
December 2024
General Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, USA.
Trauma and burn injuries often present with multiple complications, necessitating a coordinated, multidisciplinary approach to management. This case series reviews the outcomes and challenges of treating high-risk trauma and burn patients, with a focus on complex polytrauma, alcohol withdrawal, high-voltage electrical injuries, and lightning strikes. Each case underscores the importance of early intervention, multidisciplinary team involvement, and individualized treatment protocols for improving patient outcomes in critically injured burn victims.
View Article and Find Full Text PDFCureus
December 2024
Dermatology, University of California, Davis Medical Center, Sacramento, USA.
Melanonychia describes black pigmentation of the nail plate that results from either melanocyte activation (such as infections, local inflammatory disorders, local trauma affecting the nail plate, numerous systemic conditions, and medications) or melanocyte hyperplasia (such as benign neoplasms or malignant tumors) or blood (resulting from a trauma-associated subungual hematoma). The black dyschromia may include not only the nail plate but also the proximal nailfold. The Hutchinson sign refers to black discoloration of both the proximal nailfold and adjacent nail plate when the underlying pigmented lesion is a malignant melanoma.
View Article and Find Full Text PDFCureus
December 2024
Physical Medicine and Rehabilitation, San Joaquin Valley Rehabilitation Hospital, Fresno, USA.
Transverse myelitis (TM), a poorly understood neurological disorder, can manifest in various clinical scenarios. We report a unique case where TM presented in a background of benign paroxysmal positional vertigo (BPPV). The patient, an otherwise healthy female, experienced a rapid onset of symptoms, culminating in complete left-sided hemiparesis and exacerbation of BPPV characteristics.
View Article and Find Full Text PDFExp Astron (Dordr)
January 2025
Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, 94720 CA USA.
We present an investigation into the effects of high-energy proton damage on charge trapping in germanium cross-strip detectors with the goal of accomplishing three important measurements. First, we calibrated and characterized the spectral resolution of a spare COSI-balloon detector in order to determine the effects of intrinsic trapping, finding that electron trapping due to impurities dominates over hole trapping in the undamaged detector. Second, we performed two rounds of proton irradiation of the detector in order to quantify, for the first time, the rate at which charge traps are produced by proton irradiation.
View Article and Find Full Text PDFBackground: Acute myeloid leukemia (AML) with RAM immunophenotype is a newly recognized high-risk AML immunophenotypic subcategory characterized by blasts with bright expression of CD56 and weak to absent expression of CD45, HLA-DR, and CD38, as first described by the Children's Oncology Group (COG). The relationship between AML-RAM and other CD56-positive acute leukemias is unclear. The goal of this study is to characterize the clinicopathological characteristics of AML with RAM phenotype and compare them with other CD56 co-expressing acute leukemias.
View Article and Find Full Text PDFHemoglobin H (HbH) disease is associated with anemia, ineffective erythropoiesis, and iron overload. We report a case of a patient with HbH/Hb Constant Spring disease, who was maintained on chronic transfusions as an adult due to symptomatic anemia. Over time, he developed iron overload and was started on chelation therapy but did not have an adequate response to chelation.
View Article and Find Full Text PDFIntroduction: The aim of this study was to define the relationships between factors other than transferrin saturation (TS) to mean corpuscular volume (MCV) and macrocytosis (MCV > 100 fL) in p.C282Y (rs1800562) homozygotes.
Methods: We studied white post-screening participants with p.
Zookeys
January 2025
Steinhart Aquarium, California Academy of Sciences, San Francisco, CA 94118, USA.
Herein, we describe a new species of perchlet found at depths of 100-125 meters in mesophotic coral ecosystems of the Maldives in the Indian Ocean. is unique in both morphology and coloration. The following combination of characters distinguishes it from all known congeners: dorsal fin X, 15; anal-fin rays III, 7; pectoral-fin rays 13 | 13 (13 | 12), all unbranched; principal caudal-fin rays 9 + 8; lateral line complete with 30-32 tubed scales; gill rakers 5 + 12; circumpeduncular scales 11-12; and absence of antrorse or retrorse spines on ventral margin of preopercle.
View Article and Find Full Text PDFACM Trans Access Comput
December 2024
University of California, Santa Cruz, 1156 High Street, Santa Cruz, California, USA.
We describe two iOS apps designed to support blind travelers navigating in indoor building environments. The Wayfinding app provides guidance to a blind user while following a certain route. The Backtracking app records the route taken by the walker towards a certain destination, then provides guidance while re-tracing the same trajectory in the opposite direction.
View Article and Find Full Text PDFMater Today Bio
February 2025
Institute of Optical Functional Materials for Biomedical Imaging, School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Science, Taian, Shandong, 271016, PR China.
Cardiovascular diseases (CVDs) are a leading cause of mortality worldwide. As a chronic inflammatory disease with a complicated pathophysiology marked by abnormal lipid metabolism and arterial plaque formation, atherosclerosis is a major contributor to CVDs and can induce abrupt cardiac events. The discovery of exosomes' role in intercellular communication has sparked a great deal of interest in them recently.
View Article and Find Full Text PDFGastro Hep Adv
September 2024
Division of Research, Kaiser Permanente Northern California, Oakland, California.
Proc ACM Interact Mob Wearable Ubiquitous Technol
March 2022
Northeastern University, Boston, MA.
Ecological momentary assessment (EMA) is used to gather self-report on behaviors using mobile devices. Microinteraction EMA (μEMA), is a type of EMA where each survey is that can be answered with a glanceable microinteraction on a smartwatch. Prior work shows that even when μEMA interrupts far more frequently than smartphone-EMA, μEMA yields higher response rates with lower burden.
View Article and Find Full Text PDFACS Cent Sci
January 2025
Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States.
In quantum information science and sensing, electron spins are often purified into a specific polarization through an optical-spin interface, a process known as optically detected magnetic resonance (ODMR). Diamond-NV centers and transition metals are both excellent platforms for these so-called color centers, while metal-free molecular analogues are also gaining popularity for their extended polarization lifetimes, milder environmental impacts, and reduced costs. In our earlier attempt at designing such organic high-spin π-diradicals, we proposed to spin-polarize by shelving triplet = ±1 populations as singlets.
View Article and Find Full Text PDFACS Cent Sci
January 2025
Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.
Inelastic photoelectron scattering (IPES) by gas molecules, a critical phenomenon observed in ambient pressure X-ray photoelectron spectroscopy (APXPS), complicates spectral interpretation due to kinetic energy loss in the primary spectrum and the appearance of additional features at higher binding energies. In this study, we systematically investigate IPES in various gas environments using APXPS, providing detailed insights into interactions between photoelectrons emitted from solid surfaces and surrounding gas molecules. Core-level XPS spectra of Au, Ag, Zn, and Cu metals were recorded over a wide kinetic energy range in the presence of CO, N, Ar, and H gases, demonstrating the universal nature of IPES across different systems.
View Article and Find Full Text PDFACS Cent Sci
January 2025
Sarafan ChEM-H Institute, Stanford University, Stanford, California 94305-6104, United States.
Antimicrobial drug resistance (AMR) is a pressing global human health challenge. Humans face one of their grandest challenges as climate change expands the habitat of vectors that bear human pathogens, incidences of nosocomial infections rise, and new antibiotics discovery lags. AMR is a multifaceted problem that requires a multidisciplinary and an "all-hands-on-deck" approach.
View Article and Find Full Text PDFACS Cent Sci
January 2025
Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States.
As a vital process for solar fuel synthesis, water oxidation remains a challenging reaction to perform using durable and cost-effective systems. Despite decades of intense research, our understanding of the detailed processes involved is still limited, particularly under photochemical conditions. Recent research has shown that the overall kinetics of water oxidation by a molecular dyad depends on the coordination between photocharge generation and the subsequent chemical steps.
View Article and Find Full Text PDFISME Commun
January 2024
Department of Plant and Microbial Biology, North Carolina State University, 112 Derieux Place, Thomas Hall, Raleigh, NC 27607, United States.
Microbially induced carbonate precipitation (MICP) is a natural process with potential biotechnological applications to address both carbon sequestration and sustainable construction needs. However, our understanding of the microbial processes involved in MICP is limited to a few well-researched pathways such as ureolytic hydrolysis. To expand our knowledge of MICP, we conducted an omics-based study on sedimentary communities from travertine around the CO-driven Crystal Geyser near Green River, Utah.
View Article and Find Full Text PDFWorld J Clin Cases
January 2025
Department of Nephrology, Clinical Poison Center, Chang Gung Memorial Hospital, Linkou 33305, Taoyuan, Taiwan.
The issue of plastic pollutants has become a growing concern. Both microplastics (MPs) (particle size < 5 mm) and nanoplastics (NPs) (particle size < 1 µm) can cause DNA damage, cytotoxicity, and oxidative stress in various organisms. The primary known impacts of microplastic/nanoplastic are observed in the liver and respiratory system, leading to hepatotoxicity and chronic obstructive pulmonary disease.
View Article and Find Full Text PDFPeerJ
January 2025
Biology, York University, Toronto, Ontario, Canada.
Plant responses to changes in temperature can be a key factor in predicting the presence and managing invasive plant species while conserving resident native plant species in dryland ecosystems. Climate can influence germination, establishment, and seedling biomass of both native and invasive plant species. We tested the hypothesis that common and widely distributed native and an invasive plant species in dryland ecosystems in California respond differently to increasing temperatures.
View Article and Find Full Text PDFPeerJ
January 2025
Faunal Archaeology Consultant, Olympia, Washington, United States.
The presence of at least two contemporaneous Pleistocene mastodon taxa in North America ( and ) invites re-examination of specimens at the geographic margins of each species in order to determine range boundaries, overlaps, and fluctuations. Third molars from Oregon in the United States, as well as from Hidalgo and Jalisco in Mexico, were found to be morphologically consistent with . Washington in the United States includes a number of specimens that could not be confidently assigned to either taxon.
View Article and Find Full Text PDFNat Astron
November 2024
NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA USA.
The Voyager 2 flyby of Uranus in 1986 revealed an unusually oblique and off-centred magnetic field. This single in situ measurement has been the basis of our interpretation of Uranus's magnetosphere as the canonical extreme magnetosphere of the solar system; with inexplicably intense electron radiation belts and a severely plasma-depleted magnetosphere. However, the role of external forcing by the solar wind has rarely been considered in explaining these observations.
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