119,023 results match your criteria: "Argentina; Institute of Oncology of Rosario[Affiliation]"

NEW OCCURRENCES OF PHYTOTELMATA-INHABITING MOSQUITOES SPECIES IN NORTHWESTERN ARGENTINA.

J Am Mosq Control Assoc

January 2025

Unidad Ejecutora Lillo (CONICET-Fundación Miguel Lillo), San Miguel de Tucumán, Tucumán, Argentina.

The potential risk areas for emerging or reemerging diseases are determined by the presence, abundance, and distribution of mosquitoes. Here new records and geographical distribution extension of mosquito species in phytotelmata are updated for Argentina. We report for the first time Toxorhynchites bambusicola in Aechmea distichantha in Salta and Tucumán provinces, in the northwest region of Argentina.

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The extent of alien taxa impacts on river ecosystem health is unclear, but their frequency continues to rise. We investigated 1) the prevalence of including alien taxa in common bioindicators used in river bioassessment, 2) the effect of alien taxa on the richness and abundance of natives, and 3) whether including alien taxa in bioassessment tools increased their sensitivity to river degradation. In the 17 countries analyzed fish represented the greatest number of alien species (1726), followed by macrophytes (925), macroinvertebrates (556), and diatoms (7).

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Biokinetic gait differences between Hallux valgus patients and asymptomatic subjects.

Gait Posture

December 2024

Internal Medicine Research Unit, Department of Internal Medicine, Hospital Italiano de Buenos Aires, Argentina; CONICET (Consejo Nacional de Investigaciones Científicas y Técnicas), Hospital Italiano de Buenos Aires, Argentina.

Background: Hallux valgus (HV) is the most prevalent foot condition, associated with a decline in quality of life and a high rate of complications. Pedobarography can be a diagnostic tool, although controversies exist due to differences in measurement scales, type of capture, software, and hardware used. Deformity level differences have not been thoroughly explored.

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Linear Plasmids in Micrococcus: Insights Into a Common Ancestor and Transfer by Conjugation.

Environ Microbiol

January 2025

Planta Piloto de Procesos Industriales Microbiológicos, Consejo Nacional de Investigaciones Científicas y Técnicas, San Miguel de Tucumán, Tucumán, Argentina.

Actinobacteria have frequently been reported in the Andean Puna, including strains of the genus Micrococcus. These strains demonstrate resistance to high levels of UV radiation, arsenic, and multiple antibiotics, and possess large linear plasmids. A comparative analysis of the sequences and putative functions of these plasmids was conducted.

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A comparative approach to the microstructure in the carpus and tarsus in anurans.

Dev Growth Differ

January 2025

Instituto de Bio y Geociencias del NOA (IBIGEO), CCT CONICET Salta-Jujuy, Rosario de Lerma, Argentina.

Despite the significant literature about morphological features of limb skeletons involved in tetrapod limb evolution, some questions about carpal and tarsal elements remain. In anurans, the ecomorphological and biomechanical approaches studied long hind limbs (to jump) and forelimbs (to land) and emphasized the role of the long bones in locomotion but disregarded what happens with the nodular elements of the carpus and tarsus. Here, we present a comparative study of nodular elements of the carpus and tarsus in anurans based on whole-mount specimens stained with Alcian Blue (cartilage) and Alizarin Red S (bone and calcified cartilage).

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A Self-supervised Deep Learning Model for Diagonal Sulcus Detection with Limited Labeled Data.

Neuroinformatics

January 2025

Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Buenos Aires, Argentina.

Sulci are a fundamental part of brain morphology, closely linked to brain function, cognition, and behavior. Tertiary sulci, characterized as the shallowest and smallest subtype, pose a challenging task for detection. The diagonal sulcus (ds), located in a crucial area in language processing, has a prevalence between 50% and 60%.

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Background: Petroclival meningiomas are still a neurosurgical challenge due to their proximity to cranial nerves and cerebral vasculature along the surgical corridor. The usual extension of large petroclival meningiomas is along the posterior fossa, frequently compromising and displacing adjunct cranial nerves such as the sixth and seventh-eight cranial nerve complex with brainstem compression, causing progressive neurological deficit and severe headache. The goal of sizeable petroclival meningioma surgery treatment is a maximal resection with preservation of neurological function.

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An experimental chimeric hepatitis E virus vaccine elicits both local and systemic immune responses.

Front Microbiol

December 2024

Infection Biology Laboratory, Instituto Superior de Investigaciones Biológicas (INSIBIO), CONI-CET-UNT, Tucumán, Argentina.

Introduction: The development of a hepatitis E virus (HEV) vaccine is critical, with ORF2 capsid protein as the main target. We previously demonstrated that oral coadministration of recombinant ORF2 with immunomodulatory bacterium-like-particles (IBLP) induces a specific immune response in mice, particularly using IBLP derived from IBL027 (IBLP027), which was effective in eliciting a local humoral response. IBLP are non-live bacteria with adjuvant and carrier properties, serving as a platform for exposing proteins or antigens fused to LysM (lysine motif) domains, protein modules that bind to cell wall polysaccharides like peptidoglycan.

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Introduction: In the pediatric setting, overprescribing of antibiotics contributes to the rise of multidrug-resistant organisms. Antimicrobial stewardship programs (ASPs) are recommended to optimize antibiotic use and combat resistance. However, the implementation of ASPs in low- and middle-income countries faces several challenges.

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Assessment of temporal aggregation of Sentinel-2 images on seasonal land cover mapping and its impact on landscape metrics.

Environ Monit Assess

January 2025

Universidad Nacional de Córdoba - Facultad de Ciencias Agropecuarias, X5000HUA, Córdoba, Argentina.

Landscape metrics (LM) play a crucial role in fields such as urban planning, ecology, and environmental research, providing insights into the ecological and functional dynamics of ecosystems. However, in dynamic systems, generating thematic maps for LM analysis poses challenges due to the substantial data volume required and issues such as cloud cover interruptions. The aim of this study was to compare the accuracy of land cover maps produced by three temporal aggregation methods: median reflectance, maximum normalised difference vegetation index (NDVI), and a two-date image stack using Sentinel-2 (S2) and then to analyse their implications for LM calculation.

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Three-dimensional characterization of nanoporous membranes by capillary filling using high speed interferometry.

Rev Sci Instrum

January 2025

Dpto. de Física, Facultad de Ingeniería Química, Universidad Nacional del Litoral, S3000 Santa Fe, Argentina and Instituto de Física del Litoral, Santa Fe S3000, Argentina.

A high-speed interferometric system was developed to analyze nanostructured porous silicon (PS) membranes by measuring reflectance variations during capillary filling from both sides. A high-speed camera was employed to capture the reflectance evolution of the entire sample area with the necessary temporal resolution, providing quantitative information on filling dynamics. By integrating these data with a simple fluid dynamic model, it is possible to examine the internal structure of the membranes and determine the effective pore radii profiles along their thickness.

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Effect of temperature on circadian clock functioning of trees in the context of global warming.

New Phytol

January 2025

Instituto de Investigaciones Forestales y Agropecuarias Bariloche, Instituto Nacional de Tecnología Agropecuaria, Estación Experimental Bariloche - Consejo Nacional de Investigaciones Científicas y Técnicas (INTA EEA Bariloche-CONICET), San Carlos de Bariloche, Río Negro, R8403DVZ, Argentina.

Plant survival in a warmer world requires the timely adjustment of biological processes to cyclical changes in the new environment. Circadian oscillators have been proposed to contribute to thermal adaptation and plasticity. However, the influence of temperature on circadian clock performance and its impact on plant behaviour in natural ecosystems are not well-understood.

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The National Policy for the Care of Indigenous Peoples (NPCIP) faces an enormous challenge in operationalization regarding the training and qualification of health professionals to work in an intercultural context. In this article, we open a dialogue with the proposal of a Meeting of Knowledges (MK) as a teaching and learning strategy capable of promoting a critical intercultural education. We seek to reflect on the possible impact of MK in the health field for transforming the university environment, as well as healthcare for Indigenous communities, towards an entrenched, democratic, pluriepistemic, and transdisciplinary perspective.

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Article Synopsis
  • Southern Africa has a long history of human habitation, with diverse immigration affecting the original KhoeSan populations over thousands of years, leading to their decline or admixture, primarily involving KhoeSan women.
  • The study analyzed mitochondrial DNA from 247 South African individuals focused on groups with historical ties to KhoeSan populations to evaluate genetic diversity and connectivity among these groups.
  • Results showed 142 distinct haplotypes, predominantly haplogroup L0, especially within admixed populations, indicating significant population structure and limitations in using mtDNA analysis for forensic purposes due to observed regional variations and matrilocal patterns.
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Effect of multiorgan abdominal ischemic preconditioning on experimental kidney transplantation.

Acta Cir Bras

January 2025

Universidad Nacional de La Plata - Faculty of Medicine - Organ Transplant Laboratory - La Plata - Argentina.

Purpose: To mitigate ischemia-reperfusion injury (IRI) triggered in solid organ transplant procedures, we aimed to evaluate the effects of multi-organ abdominal ischemic preconditioning (MAIP) in the context of renal IRI.

Methods: An experimental kidney transplant model was conducted. Rats were divided into three groups: an intervention free basal group from which physiological data was collected; a control group (CT), which consisted of transplanted animals without MAIP; and a treated group, in which a MAIP protocol was implemented in the donor during the procurement of the left kidney, monitoring the recipient for 24 hours.

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Objective: To compare the effectiveness of the awake-prone position on relevant clinical outcomes in patients with COVID-19-related acute respiratory failure requiring high-flow nasal oxygen between different waves in Argentina.

Methods: This multicenter, prospective cohort study included adult patients with COVID-19-related acute respiratory failure requiring high-flow nasal oxygen. The main exposure position was the awake-prone position (≥ 6 hours/day) compared to the non-prone position.

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Background: Obesity is a chronic disease constituting a public health issue, and its prevalence is alarmingly on the rise worldwide. This disease represents a chronic and multifactorial condition, one of the factors being related to the psychological aspect of the patients. Bariatric is an effective tool for obesity control, with weight regain observed more frequently between the third and sixth postoperative years.

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Extruded Quinoa Flour Applied for the Development of Gluten-Free Breads: a Technological, Sensory and Microstructural Approach.

Plant Foods Hum Nutr

January 2025

Laboratorio de Investigación en Funcionalidad y Tecnología de Alimentos (LIFTA), Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Bernal, Argentina.

Quinoa flour due to its nutritional and sensory characteristics could be used as an ingredient to improve the nutritional and technological properties of gluten-free bread. Furthermore, the application of hydrothermal processes such as extrusion can enhance their native properties. Hence, our objective was to evaluate how the incorporation of extruded quinoa flours (EQFs) affects the technological, sensory and nutritional quality of gluten-free bread.

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Male seminal fluid allocation according to socio-sexual context in the South American fruit fly.

J Comp Physiol A Neuroethol Sens Neural Behav Physiol

January 2025

Laboratorio de Investigaciones Ecoetológicas de Moscas de la Fruta y sus Enemigos Naturales (LIEMEN), División Control Biológico de Plagas, PROIMI-Biotecnología, CONICET, Avenida Belgrano y Pasaje Caseros s/n, San Miguel de Tucumán, Tucumán, 4000, Argentina.

During copulation male insects transfer sperm and seminal fluids, including accessory gland proteins (Acps) to females, produced in the accessory glands (AGs). These Acps influence female behavior and physiology, inhibiting sexual receptivity, promoting ovulation and/or oviposition. The theory of ejaculate allocation postulates that production is costly; therefore, males strategically allocate ejaculates based on perception of sperm competition and quality and availability of females.

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Background And Objectives: Härtel triangle provides surface landmarks for locating the foramen ovale (FO) when performing trigeminal nerve percutaneous procedures. Although widely adopted in clinical practice, there is no report that these landmarks have ever been formally validated through modern imaging techniques. Here we aim to validate Härtel anatomical landmarks using computed tomography scans and propose technical considerations for percutaneous trigeminal procedures.

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PlomBOX: a low cost bioassay for the sensitive detection of lead in drinking water.

Commun Eng

January 2025

Facultad Regional Avellaneda, Universidad Tecnológica Nacional, Buenos Aires, Argentina.

This paper reports the design of a biosensor for sensitive, low-cost measurement of lead in drinking water. The biosensor uses a genetically-modified strain of Escherichia coli, which serves as both signal amplifier and reporter of lead in water, measured via colour change. We developed the PlomBOX measurement platform to image this colour change and we demonstrate its capability to detect concentrations as low as the World Health Organisation upper limit for drinking water of 10 ppb.

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Using space-filling curves and fractals to reveal spatial and temporal patterns in neuroimaging data.

J Neural Eng

January 2025

Center for Complex Systems and Brain Sciences, Universidad Nacional de San Martin Escuela de Ciencia Y Tecnologia, 25 de Mayo y Francia, San Martín, Buenos Aires, 1650, ARGENTINA.

Objective Magnetic resonance imaging (MRI), functional MRI (fMRI) and other neuroimaging techniques are routinely used in medical diagnosis, cognitive neuroscience or recently in brain decoding. They produce three- or four-dimensional scans reflecting the geometry of brain tissue or activity, which is highly correlated temporally and spatially. While there exist numerous theoretically guided methods for analyzing correlations in one-dimensional data, they often cannot be readily generalized to the multidimensional geometrically embedded setting.

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Yerba mate (YM, ) is an economically important crop marketed for the elaboration of mate, the third-most widely consumed caffeine-containing infusion worldwide. Here, we report the first genome assembly of this species, which has a total length of 1.06 Gb and contains 53,390 protein-coding genes.

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