Publications by authors named "Serna A"

The forensic application of stable oxygen isotope data from human tissues depends on naturally occurring isotopic variation in drinking water across geographic areas. One factor which complicates interpretation of forensic data is local variability: if a wide range of drinking water values is in a small geographic region it may be difficult to identify or rule out that region as a location of origin. We examine data from community collection programs documenting tap water isotope variation within 30 cities\developed areas throughout the United States.

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Heavy crude oil processing presents significant challenges owing to its complex composition and requirement for processing conditions, which increase the process safety risk in crude processing units, such as fixed equipment, for instance pressure vessels and pipes. The aim of this work is to evaluate the influence of heavy crude oils named A and B and the effect of sulfur-rich compounds and organic acids on the performance at high temperatures of three metallic alloys (5Cr-1/2Mo/ASTM A335GP5, X6CrNiMoTi17122/AISI-SAE 316Ti and Ni66.5Cu31.

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Objective: To examine associations among experiences of racial discrimination, perceived stress, and birth satisfaction and to test if perceived stress mediates the relationship between racial discrimination and birth satisfaction among Black women in the postpartum period.

Design: Secondary analysis of data from the Biosocial Impact on Black Births study.

Setting: A postpartum unit of a large hospital in Central Florida.

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Oropharyngeal Dysphagia (OD) increases the risk of hospitalization and the use of health services; however, it is often detected and studied in institutionalized patients with limited attention given to the community. The aim of this study was to determine the prevalence of OD and its associated factors after conducting a program consisting of a systematic assessment of OD for in patients living independently in their dwellings and requiring home-based care. We conducted a cross-sectional study involving a systematic assessment of disabled and elderly patients enrolled in a home-based primary care program at three urban centers (Barcelona, Spain).

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Due to climate change, many regions are experiencing progressively milder winters. Consequently, pest insects from warm regions, particularly those with some tolerance to low temperatures, could expand their geographic range into these traditionally colder regions. The palm borer moth (Paysandisia archon) is a Neotropical insect that in recent decades has reached Europe and Asia as one of the worst pests of palm trees.

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Background: Hemostatic powders are used as second-line treatment in acute gastrointestinal (GI) bleeding (AGIB). Increasing evidence supports the use of TC-325 as monotherapy in specific scenarios. This prospective, multicenter study evaluated the performance of TC-325 as monotherapy for AGIB.

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Purpose: Prostate cancer disproportionately affects men of African descent, yet their representation in tissue-based studies is limited. This multinational, multicenter pilot study aims to establish the groundwork for collaborative research on prostate cancer in sub-Saharan Africa.

Methods: The Men of African Descent and Carcinoma of the Prostate network formed a pathologist working group representing eight institutions in five African countries.

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Background: Surgeon performance has been investigated as a factor affecting patient outcomes after orthopaedic procedures to improve transparency between patients and providers.

Purpose/hypothesis: The purpose of this study was to identify whether surgeon performance influenced patient-reported outcomes (PROMs) 1 year after arthroscopic partial meniscectomy (APM). It was hypothesized that there would be no significant difference in PROMs between patients who underwent APM from various surgeons.

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Objective: To explore the feasibility of recruitment, adherence, and retention and the acceptability of the FitMoms2B physical activity promotion program and study measures among non-Hispanic Black women with high-risk pregnancies.

Design: One-arm pilot feasibility study.

Setting: A large regional high-risk prenatal clinic in the southeastern United States.

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Isotopic analysis of human tooth enamel can provide life history information useful in forensic identification. These applications depend on the availability of reference data documenting isotopic values for individuals with known life history and on the comparability of data from reference and case work samples. Here we build on previous methodological research, which has largely focused on paleontological and archaeological samples, and conduct experiments using enamel from modern human teeth targeting three sample preparation variables (sample particle size, storage conditions, and chemical pretreatments).

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As traditionally cold areas become warmer due to climate change, temperature could no longer be a barrier to the establishment of non-native insects. This is particularly relevant for pest insects from warm and tropical areas, mainly those with some tolerance to moderately low temperatures, which could expand their range into these new locations. From this perspective, in this work we studied the morphological and biochemical responses of the Neotropical pest Paysandisia archon to low temperatures, as part of a possible strategy to colonize new areas.

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Many studies have investigated how interpersonal differences between users influence their experience in Virtual Reality (VR) and it is now well recognized that user's subjective experiences and responses to the same VR environment can vary widely. In this study, we focus on player traits, which correspond to users' preferences for game mechanics, arguing that players react differently when experiencing VR scenarios. We developed three scenarios in the same VR environment that rely on different game mechanics, and evaluate the influence of the scenarios, the player traits and the time of practice of the VR environment on users' perceived flow.

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Article Synopsis
  • Watchful waiting is a viable management option for advanced-stage, low tumor burden patients with follicular lymphoma, but predicting how long this observation period will last is challenging.
  • The study found that higher total metabolic tumor volume (TMTV) at diagnosis correlates with shorter observation periods, with patients having a TMTV above 50 mL experiencing significantly less time before requiring treatment.
  • TMTV emerged as a strong predictor of time to first treatment, suggesting that once validated, it could help inform decisions about starting or delaying treatment for patients with low tumor burden follicular lymphoma.
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  • * A study of 520 adult patients showed that small abscesses (<30 mm) can be treated effectively with antibiotics, while larger abscesses require drainage methods, with surgical drainage being more effective but riskier.
  • * Post-treatment, luminal resection lowers the risk of abscess recurrence within a year, but anti-TNF therapy shows similar effectiveness for preventing recurrences regardless of resection.
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Understanding long-term dynamics of past socio-ecological systems is essential for their future management. The southern Atlantic Forest coast of Brazil with its biodiverse littoral zone and artisanal fishing communities, is a priority for conservation. Traditional maritime knowledge is thought to have a deep-history and indeed, marine exploitation can be traced back to the middle Holocene.

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  • Richter transformation (RT) is when a type of leukemia called chronic lymphocytic leukemia (CLL) changes into a much more serious and aggressive form of cancer.
  • This change is hard to treat and doctors are still trying to find better ways to help patients.
  • In the last five years, researchers have learned more about how RT happens, how to identify it better, and are looking for new treatment options that work better than traditional chemotherapy.
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Family functioning may serve as protective or risk factors in the development of youth psychopathology. However, few studies have examined the potentially reciprocal relation between child psychopathology and family functioning. To fill this gap in the literature, this study tested for time-ordered associations between measures of family functioning (e.

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Telomere transcription into telomeric repeat-containing RNA (TERRA) is an integral component of all aspects of chromosome end protection consisting of telomerase- or recombination-dependent telomere elongation, telomere capping, and the preservation of the (sub)telomeric heterochromatin structure. The chromatin modifier and transcriptional regulator MLL binds to telomeres and regulates TERRA transcription in telomere length homeostasis and response to telomere dysfunction. MLL fusion proteins (MLL-FPs), the product of rearrangements in leukemia, also bind to telomeric chromatin.

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During the Late Holocene, hunter-gatherer interaction networks significantly grew in intensity and extension across Patagonia. Although this growth is evidenced by the increased flow of exotic items across the region, the mechanisms behind these strengthening social networks remain unclear. Since evidence suggests that some individuals might have performed long-distance trips, this article aims to address the potential relationship between these individuals and the flows of exotic items in North Patagonia.

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Background: Magnetic resonance imaging (MRI)-based rotator cuff assessment is often qualitative and subjective; few studies have tried to validate such preoperative assessments. This study investigates relationships of preoperative MRI assessments made by conventional approaches to intraoperative findings of tear type, location, and size or MRI-assessed muscle occupation ratio.

Methods: Intraoperatively, surgeons assessed tear type, location, anterior-posterior (AP) width, and medial-lateral length in 102 rotator cuff repair patients.

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Background: It is unknown whether race- or insurance-based disparities in health care exist regarding baseline knee pain, knee function, complete meniscal tear, or articular cartilage damage in patients who undergo anterior cruciate ligament reconstruction (ACLR).

Hypothesis: Black patients and patients with Medicaid evaluated for ACLR would have worse baseline knee pain, worse knee function, and greater odds of having a complete meniscal tear.

Study Design: Cross-sectional study; Level of evidence, 3.

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Patellar tendon (PT) and quadriceps tendon (QT) ruptures represent significant injuries and warrant surgical intervention in most patients. Outcome data are predominantly retrospective analyses with low sample sizes. There are also minimal data comparing QT and PT repairs and the variables impacting patient outcomes.

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The red palm weevil (RPW), , is one of the worst palm pests worldwide. In this work, we studied the physiological basis underlying its adaptive strategy against low temperatures. Specifically, we analyzed the main low-molecular-weight biochemical substances acting as possible endogenous cryoprotectants, as well as their efficiency in reducing cold injury by preserving K/Na homeostasis.

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