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  1. Article ; Online: Oocyte quality in adapted Bos taurus taurus cows.

    Vega, Diego Armando / Narváez, Héctor Javier

    Animal biotechnology

    2023  Volume 34, Issue 9, Page(s) 4675–4679

    Abstract: The objective of the current study was to determine the performance of creole cows of the Chino Santandereano breed in the ultrasound-guided follicular aspiration technique (OPU) and the quality of oocytes recovered. A total of 15 multiparous cows were ... ...

    Abstract The objective of the current study was to determine the performance of creole cows of the Chino Santandereano breed in the ultrasound-guided follicular aspiration technique (OPU) and the quality of oocytes recovered. A total of 15 multiparous cows were selected from a herd located in the department of Santander with tropical climate. The cows were submitted to 5 sessions of follicular aspiration with an interval of 45 days. In each aspiration session, 7.9 ± 0.7 oocytes were recovered per cow, with a recovery rate of 64.9% ± 0.5 and a rate of viable and non-viable oocytes of 64.3% ± 0.6 and 35.7% ± 0.7, respectively. A difference (
    MeSH term(s) Female ; Cattle ; Animals ; Oocytes ; Fertilization in Vitro/veterinary
    Language English
    Publishing date 2023-03-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2043243-4
    ISSN 1532-2378 ; 1049-5398
    ISSN (online) 1532-2378
    ISSN 1049-5398
    DOI 10.1080/10495398.2023.2185248
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Geospatial Variability of Fluorescent Dissolved Organic Matter in Urban Watersheds: Relationships with Land Cover and Wastewater Infrastructure.

    Batista-Andrade, Jahir A / Welty, Claire / Iglesias Vega, Diego / McClain, Anna / Blaney, Lee

    Environmental science & technology

    2024  Volume 58, Issue 17, Page(s) 7529–7542

    Abstract: We investigated the fluorescent dissolved organic matter (FDOM) composition in two watersheds with variable land cover and wastewater infrastructure, including sanitary sewers and septic systems. A four-component parallel factor analysis model was ... ...

    Abstract We investigated the fluorescent dissolved organic matter (FDOM) composition in two watersheds with variable land cover and wastewater infrastructure, including sanitary sewers and septic systems. A four-component parallel factor analysis model was constructed from 295 excitation-emission matrices recorded for stream samples to examine relationships between FDOM and geospatial parameters. The contributions of humic acid- and fulvic acid-like fluorescence components (e.g., C1, C2, C3) were fairly consistent across a 12 month period for the 27 sampling sites. In contrast, the protein-like fluorescence component (C4) and a related ratiometric wastewater indicator (C4/C3) exhibited high variability in urban tributaries, suggesting that some sites were impacted by leaking sewer infrastructure. Principal component analysis indicated that urban areas clustered with impervious surfaces and sanitary sewer density, and cross-covariance analysis identified strong positive correlations between C4, impervious surfaces, and sanitary sewer density at short lag distances. The presence of wastewater was confirmed by detection of sucralose (up to 1,660 ng L
    MeSH term(s) Wastewater/chemistry ; Environmental Monitoring/methods ; Water Pollutants, Chemical/analysis ; Fluorescence
    Chemical Substances Wastewater ; Water Pollutants, Chemical
    Language English
    Publishing date 2024-04-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.3c07925
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Use of Stainless-Steel Electrodes on the Electrochemical Oxidation of Naproxen and its Transformation Products in Surface Water

    López Zavala, Miguel Ángel / Anglés Vega, Diego

    Water. 2021 Dec. 15, v. 13, no. 24

    2021  

    Abstract: In this study, stainless-steel electrodes were used to effectively oxidize naproxen and its transformation products in surface water by electrochemical oxidation in short reaction times. An evaluation of the effects of current density, chloride ... ...

    Abstract In this study, stainless-steel electrodes were used to effectively oxidize naproxen and its transformation products in surface water by electrochemical oxidation in short reaction times. An evaluation of the effects of current density, chloride concentrations, and pH on the electrochemical oxidation process (mechanisms, kinetics, and reaction times) was conducted. Results showed that degradation rates of naproxen were greater, and the reaction times were shorter than those reported in other studies for other compounds and electrode materials. Oxidation naproxen and its transformation products were faster at high current densities, high chloride concentrations, and low pH conditions; however, good performance of the electrochemical oxidation process was observed at 16.3 mA/cm² and pH 5 for both the naproxen and its transformation products, which were oxidized in only 15 min for the treated effluent and 30 min in the case of sludge. At pH 3 and 5, the number of transformation products and the reaction times required for achieving complete oxidation were greater in sludge than in the treated effluent; meanwhile, at pH 7 and 9, the number of transformation products and reaction times needed for non-detection were of the same order in both the treated effluent and the sludge.
    Keywords chlorides ; electrochemistry ; electrodes ; oxidation ; pH ; sludge ; stainless steel ; surface water
    Language English
    Dates of publication 2021-1215
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2521238-2
    ISSN 2073-4441
    ISSN 2073-4441
    DOI 10.3390/w13243604
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Process modularity, supply chain responsiveness, and moderators: The Médecins Sans Frontières response to the Covid-19 pandemic.

    Saïah, Félicia / Vega, Diego / de Vries, Harwin / Kembro, Joakim

    Production and operations management

    2022  

    Abstract: The unprecedented scale of the Covid-19 pandemic has been a challenge for health supply chains around the world. Many international humanitarian organizations have had to ensure the continuity of their already complex development programs, while ... ...

    Abstract The unprecedented scale of the Covid-19 pandemic has been a challenge for health supply chains around the world. Many international humanitarian organizations have had to ensure the continuity of their already complex development programs, while addressing their supply chain disruptions linked to the pandemic. Process modularity has frequently been advocated as a strategy to mitigate such disruptions, although empirical evidence regarding its impact on supply chain responsiveness and what moderates this impact is scarce. This exploratory research uses supply chain data analysis, qualitative content analysis, interviews, and a three-round Delphi study to investigate how Doctors without Borders (Médecins Sans Frontières; MSF) and its 151 missions employed process modularity during the Covid-19 pandemic. Our results show that despite severe disruptions, process modularity-based on a modular architecture, interfaces, and standards-has helped MSF maintain supply chain responsiveness. Specifically, it (1) enabled time-consuming, nonessential tasks to be skipped, (2) relieved internal and external bottlenecks, and (3) facilitated better allocation and prioritization. Our analyses also put forward eight moderators, structured in three dimensions (visibility, alignment, and resource orchestration), which can affect the impact of process modularity on supply chain responsiveness. We extend the literature on supply chain responsiveness and process modularity by presenting extensive empirical results suggesting
    Language English
    Publishing date 2022-03-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2151364-8
    ISSN 1937-5956 ; 1059-1478
    ISSN (online) 1937-5956
    ISSN 1059-1478
    DOI 10.1111/poms.13696
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Using multilinear regressions developed from excitation-emission matrices to estimate the wastewater content in urban streams impacted by sanitary sewer leaks and overflows.

    Batista-Andrade, Jahir A / Iglesias Vega, Diego / McClain, Anna / Blaney, Lee

    The Science of the total environment

    2023  Volume 906, Page(s) 167736

    Abstract: Failing sewer infrastructure introduces unknown quantities of raw wastewater into urban streams, raising human and ecological health concerns. To address this problem, we developed multilinear regressions that relate fluorescent dissolved organic matter ... ...

    Abstract Failing sewer infrastructure introduces unknown quantities of raw wastewater into urban streams, raising human and ecological health concerns. To address this problem, we developed multilinear regressions that relate fluorescent dissolved organic matter to wastewater content. The models were constructed with the area-normalized regional volumes of excitation-emission matrices measured for mixtures of deionized water, surface water from a wastewater-impacted stream, wastewater from a sanitary sewer adjacent to the stream, and Suwannee River natural organic matter. The best performing multilinear regression had a standard error of 0.55 % wastewater. A matrix-matched calibration was used to internally validate the approach and confirm the wastewater content of select samples. The multilinear model was externally validated through (i) comparison to concentrations of contaminants of emerging concern in surface water and wastewater and (ii) extension to samples from previous campaigns that employed alternative wastewater indicators. Using the validated model, we estimated an average wastewater content of 2.4 ± 4.0 % in 165 samples collected from 14 locations in the Gwynns Falls watershed (USA) between April 2019 and April 2023. The maximum wastewater content was 35 % at a site where sanitary sewer leaks and overflows have been previously documented. The reported approach represents a cost-effective and scalable technique to estimate wastewater content in urban streams through analysis of fluorescent dissolved organic matter.
    Language English
    Publishing date 2023-10-10
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.167736
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Assessing the effects of land use on biodiversity in the world’s drylands and Mediterranean environments

    García-Vega, Diego / Newbold, Tim

    Biodiversity and conservation. 2020 Feb., v. 29, no. 2

    2020  

    Abstract: Biodiversity models make an important contribution to our understanding of global biodiversity changes. The effects of different land uses vary across ecosystem types, yet most broad-scale models have failed to account for this variation. The effects of ... ...

    Abstract Biodiversity models make an important contribution to our understanding of global biodiversity changes. The effects of different land uses vary across ecosystem types, yet most broad-scale models have failed to account for this variation. The effects of land use may be different in systems characterized by low water availability because of the unusual conditions within these systems. Drylands are expanding, currently occupying over 40% of the terrestrial land, while Mediterranean systems are highly endangered biodiversity hotspots. However, the impact of land use on biodiversity in these biomes is yet to be assessed. Using a database of local biodiversity surveys, we assess the effects of land use on biodiversity in the world’s drylands and Mediterranean ecosystems. We compare the average species richness, total abundance, species diversity, ecological dominance, endemism rates, and compositional turnover across different land uses. In drylands, there was a strong turnover in species composition in disturbed land uses compared with undisturbed natural habitat (primary vegetation), but other measures of biodiversity did not respond significantly. However, it is important to note that the sample size for drylands was very low, a gap which should be filled promptly. Mediterranean environments showed a very high sensitivity of biodiversity to land uses. In this biome, even habitat recovering after past disturbance (secondary vegetation) had substantially reduced biodiversity and altered community composition compared with primary vegetation. In an effort to maintain original biodiversity and the ecosystem functions it supports within Mediterranean biomes, conservation measures should therefore prioritize the preservation of remaining primary vegetation.
    Keywords arid lands ; community structure ; databases ; disturbed land ; ecosystems ; habitats ; indigenous species ; land use ; sample size ; species richness ; vegetation
    Language English
    Dates of publication 2020-02
    Size p. 393-408.
    Publishing place Springer Netherlands
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2000787-5
    ISSN 1572-9710 ; 0960-3115
    ISSN (online) 1572-9710
    ISSN 0960-3115
    DOI 10.1007/s10531-019-01888-4
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Suicidal Behavior in the First Wave of the COVID-19 Pandemic.

    Giner, Lucas / Vera-Varela, Constanza / de la Vega, Diego / Zelada, Giovani M / Guija, Julio A

    Current psychiatry reports

    2022  Volume 24, Issue 1, Page(s) 1–10

    Abstract: Purpose of review: Since the declaration of the COVID-19 pandemic, there have been numerous social changes to try to ​​contain the spread of the disease. These sudden changes in daily life have also changed the way we relate to others, in addition to ... ...

    Abstract Purpose of review: Since the declaration of the COVID-19 pandemic, there have been numerous social changes to try to ​​contain the spread of the disease. These sudden changes in daily life have also changed the way we relate to others, in addition to creating a climate of uncertainty and fear. Therefore, the objective of this review is to compile published data of the consequences of suicidal behavior in the first months from the onset of the pandemic.
    Recent findings: The analysis reflects a concern about issues related to suicide since the beginning of the pandemic. A large number of online surveys have been released and have provided data on relatively large populations. The percentage of the population with suicidal ideation in that period seems to be approximately 5-15%. Many studies associate suicidal ideation with being young, female, and presence of sleep problems. Surveys of healthcare workers do not seem to indicate a higher prevalence of suicidal ideation compared to the general population. The incidence of suicide attempts seen in emergency departments did not seem to change, while the number of visits for other issues, unrelated to suicide, did decrease. The few studies on completed suicide do not indicate an increase in incidence in these first 6 months since March 2020, when the WHO declared the start of the pandemic. It does not seem that there have been major changes in the figures related to suicidal behavior in the studies from the first wave of the COVID-19 pandemic, although it is still too early to know the consequences it will have long term. The social and economic damages resulting from the pandemic will certainly take a long time to recover.
    MeSH term(s) COVID-19/epidemiology ; Female ; Humans ; Pandemics ; SARS-CoV-2 ; Suicidal Ideation ; Suicide, Attempted
    Language English
    Publishing date 2022-01-26
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2055376-6
    ISSN 1535-1645 ; 1523-3812
    ISSN (online) 1535-1645
    ISSN 1523-3812
    DOI 10.1007/s11920-022-01312-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Defining bladder outlet obstruction and detrusor underactivity in females with overactive bladder: Are we forgetting about the free uroflowmetry?

    Arevalo-Vega, Diego / Ponce, Lucas / Valdevenito, Juan Pablo / Gallegos, Héctor / Dell'Oro, Arturo / Santis-Moya, Fernanda / Calvo, Carlos Ignacio

    Neurourology and urodynamics

    2023  Volume 42, Issue 6, Page(s) 1255–1260

    Abstract: Introduction: Both detrusor underactivity (DU) and bladder outlet obstruction (BOO) can coexist in patients with overactive bladder. Definitions of both DU and BOO are based on pressure-flow study (PFS) data. However, invasive urodynamics study can ... ...

    Abstract Introduction: Both detrusor underactivity (DU) and bladder outlet obstruction (BOO) can coexist in patients with overactive bladder. Definitions of both DU and BOO are based on pressure-flow study (PFS) data. However, invasive urodynamics study can differ from a natural micturition, in fact, discrepancies between free uroflowmetry (UFM) and PFS have been largely described. Our goal is to assess the correlation of free-flowmetry and PFS among patients with OAB and to evaluate how different definitions of DU/BOO are able to discriminate patients with different free UFMs.
    Methods: A retrospective review of urodynamics performed at a single institution was conducted. Females with OAB who voided more than 150 mL in both UFM and PFS were included. Parameters from both voiding episodes were compared with nonparametric test. Two definitions of DU were applied; PIP1: Pdet@Qmax+Qmax < 30 and Gammie: Pdet@Qmax < 20 cmH
    Results: A total of 195 patients were included. Overall, mean age was 55 ± 12 years, 90.8% had mixed urinary incontinence, and 39% complained of at least one voiding symptom. Globally, Qmax and BVE correlated poorly between UFM and PFS, showing that most of the variation corresponded to a systematic error. Twenty-two individuals were found to have DU, they had a difference of 13 mL/s on both maximum flows. Fifty-four patients showed BOO, with a difference between their Qmax of 19 mL/s. Among the four definitions analyzed, only PIP1 and Defreitas were able to discriminate patients with actually a lower Qmax on the free UFM.
    Conclusions: Patients with overactive bladder seem to have a systematic discordance between the urine flow of the free and invasive studies. Current definitions of DU and BOO, which are based on the PFS parameters, are not consistently able to discriminate patients who actually void deficiently on the free UFM.
    MeSH term(s) Humans ; Female ; Adult ; Middle Aged ; Aged ; Urinary Bladder, Overactive/diagnosis ; Urinary Bladder, Overactive/complications ; Urinary Bladder Neck Obstruction/etiology ; Urinary Bladder Neck Obstruction/complications ; Urinary Bladder, Underactive/etiology ; Urinary Bladder, Underactive/complications ; Urinary Bladder ; Urination ; Urodynamics
    Language English
    Publishing date 2023-04-24
    Publishing country United States
    Document type Journal Article
    ZDB-ID 604904-7
    ISSN 1520-6777 ; 0733-2467
    ISSN (online) 1520-6777
    ISSN 0733-2467
    DOI 10.1002/nau.25188
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Suicidality in Subjects With Anxiety or Obsessive-Compulsive and Related Disorders: Recent Advances.

    De La Vega, Diego / Giner, Lucas / Courtet, Philippe

    Current psychiatry reports

    2018  Volume 20, Issue 4, Page(s) 26

    Abstract: Purpose of review: Historically, anxiety disorders have not been considered as important determinants of suicide, but in the last years, many works have challenged this assumption. Here, we will review the available evidence on the relationship between ... ...

    Abstract Purpose of review: Historically, anxiety disorders have not been considered as important determinants of suicide, but in the last years, many works have challenged this assumption. Here, we will review the available evidence on the relationship between suicide and anxiety disorders (e.g., obsessive-compulsive disorder, post-traumatic stress disorder, generalized anxiety disorder, panic disorder, and body dysmorphic disorder), with special emphasis on findings published in the last years.
    Recent findings: Overall, anxiety disorders increase the risk of suicide. Specifically, 16% of patients with social anxiety disorder reported suicidal ideation in the previous month, and 18% of them had a history of suicide attempts. Similarly, in patients with panic disorder, suicidal ideation prevalence ranged between 17 and 32%, and 33% of them had a history of suicide attempts. Generalized anxiety disorder (GAD) was the most frequent anxiety disorder in completed suicides (present in 3% of people who committed suicide) and also subthreshold GAD was clearly linked to suicide ideation. Post-traumatic stress disorder was positively associated with suicidal ideation, and in patients with obsessive-compulsive disorder, suicide ideation rates ranged from 10 to 53% and suicide attempts from 1 to 46%. Body dysmorphic disorders presented a suicide ideation prevalence of about 80%. Suicide risk is increased in subjects with anxiety disorder. This risk is higher in the presence of comorbidities, but it is not clear whether it is independent from such comorbidities in some disorders.
    MeSH term(s) Anxiety Disorders/complications ; Anxiety Disorders/epidemiology ; Body Dysmorphic Disorders/complications ; Comorbidity ; Humans ; Obsessive-Compulsive Disorder/complications ; Panic Disorder/complications ; Prevalence ; Stress Disorders, Post-Traumatic/complications ; Suicidal Ideation ; Suicide/psychology ; Suicide, Attempted/psychology
    Language English
    Publishing date 2018-03-28
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2055376-6
    ISSN 1535-1645 ; 1523-3812
    ISSN (online) 1535-1645
    ISSN 1523-3812
    DOI 10.1007/s11920-018-0885-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Sacral neuromodulation therapy for urinary and defecatory disorders: experience in a Latin American public hospital.

    Mass-Lindenbaum, Marcelo / Arévalo-Vega, Diego / Aleuanlli, Isidora / Santis-Moya, Fernanda / Maluenda, Andrea / Dines, Eitan / Cohen-Vaizer, Miriam / Saavedra, Álvaro / Raby, Trinidad / Blumel, Bernardita / Cuevas, Rodrigo / Pohlhammer, Simone / Alarcon, Gabriela / Albornoz, Marco Arellano / Pizarro-Berdichevsky, Javier

    Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia

    2024  Volume 46

    Abstract: Objective: To show the experience of a Latin American public hospital, with SNM in the management of either OAB, NOUR or FI, reporting feasibility, short to medium-term success rates, and complications.: Methods: A retrospective cohort was conducted ... ...

    Abstract Objective: To show the experience of a Latin American public hospital, with SNM in the management of either OAB, NOUR or FI, reporting feasibility, short to medium-term success rates, and complications.
    Methods: A retrospective cohort was conducted using data collected prospectively from patients with urogynecological conditions and referred from colorectal surgery and urology services between 2015 and 2022.
    Results: Advanced or basic trial phases were performed on 35 patients, 33 (94%) of which were successful and opted to move on Implantable Pulse Generator (GG) implantation. The average follow-up time after definitive implantation was 82 months (SD 59). Of the 33 patients undergoing, 27 (81%)reported an improvement of 50% or more in their symptoms at last follow-up. Moreover, 30 patients (90%) with a definitive implant reported subjective improvement, with an average PGI-I "much better" and 9 of them reporting to be "excellent" on PGI-I.
    Conclusion: SNM is a feasible and effective treatment for pelvic floor dysfunction. Its implementation requires highly trained groups and innovative leadership. At a nation-wide level, greater diffusion of this therapy among professionals is needed to achieve timely referral of patients who require it.
    MeSH term(s) Humans ; Female ; Retrospective Studies ; Hospitals, Public ; Middle Aged ; Electric Stimulation Therapy/methods ; Adult ; Aged ; Pelvic Floor Disorders/therapy ; Latin America ; Feasibility Studies ; Fecal Incontinence/therapy ; Treatment Outcome
    Language English
    Publishing date 2024-03-15
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2105176-8
    ISSN 1806-9339 ; 0100-7203
    ISSN (online) 1806-9339
    ISSN 0100-7203
    DOI 10.61622/rbgo/2024AO11
    Database MEDical Literature Analysis and Retrieval System OnLINE

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