Jalisco Research Articles

Geometric morphometry enables species hypotheses testing and the assignment of historical type specimens in the genus Callirhinus Blanchard (Coleoptera: Scarabaeidae: Anomalini)

Abstract Assignation of old type specimens is important for nomenclatural stability, but when it comes to ancient specimens, the use of certain techniques is sometimes not appropriate, due to the condition or age of the specimen. In this study, the supposedly polymorphic and monotypic genus Callirhinus Blanchard was analysed with geometric morphometric techniques and photographs of the pronotum, with the purpose of identifying the locality of the old type specimen (19th century) and to test a priori defined hypothetical species by cumulation of evidence within an integrative taxonomic protocol using geometric morphometry, complemented by morphology and geographical discontinuity. Five morphotypes were defined a priori, and principal component, canonical variates analysis, and distances tests for the assignment of the type specimen based on canonical scores and Procrustes distances between means of groups were carried out. Statistical significance was found in four axes validating the species hypotheses, discovering that the type specimen belongs to the morphotype from Jalisco state. Additionally, a taxonomic treatment, the description of four new species, C. choperi Ramírez-Ponce & Zaragoza sp. nov., C. nanduRamírez-Ponce & Zaragoza sp. nov., C. huiinisRamírez-Ponce & Zaragoza sp. nov., and C. veemeRamírez-Ponce & Zaragoza sp. nov. , keys for the species determination, new distributional records, and a map are provided. The present work demonstrates that Geometric Morphometry is an adequate analytical tool that supports taxonomic identification at low cost and without damaging historical specimens.

Multimodal MRI and tau PET findings from the Autosomal Dominant Alzheimer’s disease cohort caused by the A431E PSEN1 Jalisco mutation

AbstractBackgroundThe A431E mutation in PSEN1 is a cause of Autosomal Dominant Alzheimer’s disease (ADAD) that represents a founder effect, apparently arising from the state of Jalisco, Mexico, with over 100 superficially distinct families being affected. The median age of symptom onset is 41 years, with about 40% of cases having an atypical presentation of substantial spastic paraparesis. This study aimed to identify the neuroimaging features associated with the A431E PSEN1 Jalisco mutation to elucidate its pathophysiology and to inform future clinical studies.MethodThirty‐one participants with or known to be at‐risk for the A431E PSEN1 mutation were enrolled in a comprehensive genetic, clinical, and imaging protocol including MRI and flortaucipir PET scans. Diffusion MRI and flortaucipir PET studies were conducted on sub‐samples of the cohort along with appropriate control participants.ResultPeak flortaucipir standard uptake value ratio (SUVR) among A431E mutation carriers was predominantly in the lateral parietal cortices relative to the medial temporal lobes with disproportionate signal in motor and sensory cortex relative to persons with late onset AD. Flortaucipir SUVR in 6 brain regions (i.e., medial orbitofrontal, caudal and rostral anterior cingulate, parahippocampal, precuneus, and lateral occipital) were associated with neuropsychiatric symptoms in persons with or at risk for the A431E PSEN1 mutation. Among 21 A431E PSEN1 mutation carriers with available diffusion MRI images, the Ashworth score of spastic paraparesis correlated with mean diffusivity in several brain regions, particularly left inferior parietal, superior parietal, and paracentral lobules (r’s>0.8, p’s< 0.001). In a subset of 10 clinically impaired A431E PSEN1 mutation carriers, mean diffusivity in white matter tracts underlying multiple cortical areas was higher relative to 8 impaired persons with late onset AD or ADAD mutations that do not cause spastic paraparesis.ConclusionThe pattern of flortaucipir distribution was atypical with disproportionate involvement of sensorimotor areas and parietal cortex. Higher flortaucipir signal was associated with more neuropsychiatric symptoms. Microstructural changes in white matter were more pronounced in persons with the A431E PSEN1 mutation and likely underlie the associated spastic paraparesis. The distinct neuroimaging features and associated neuropsychiatric manifestations observed in this cohort highlight the importance of comprehensively characterizing heterogeneous AD subtypes.

Multimodal MRI and tau PET findings from the Autosomal Dominant Alzheimer’s disease cohort caused by the A431E PSEN1 Jalisco mutation

AbstractBackgroundThe A431E mutation in PSEN1 is a cause of Autosomal Dominant Alzheimer’s disease (ADAD) that represents a founder effect, apparently arising from the state of Jalisco, Mexico, with over 100 superficially distinct families being affected. The median age of symptom onset is 41 years, with about 40% of cases having an atypical presentation of substantial spastic paraparesis. This study aimed to identify the neuroimaging features associated with the A431E PSEN1 Jalisco mutation to elucidate its pathophysiology and to inform future clinical studies.MethodThirty‐one participants with or known to be at‐risk for the A431E PSEN1 mutation were enrolled in a comprehensive genetic, clinical, and imaging protocol including MRI and flortaucipir PET scans. Diffusion MRI and flortaucipir PET studies were conducted on sub‐samples of the cohort along with appropriate control participants.ResultPeak flortaucipir standard uptake value ratio (SUVR) among A431E mutation carriers was predominantly in the lateral parietal cortices relative to the medial temporal lobes with disproportionate signal in motor and sensory cortex relative to persons with late onset AD. Flortaucipir SUVR in 6 brain regions (i.e., medial orbitofrontal, caudal and rostral anterior cingulate, parahippocampal, precuneus, and lateral occipital) were associated with neuropsychiatric symptoms in persons with or at risk for the A431E PSEN1 mutation. Among 21 A431E PSEN1 mutation carriers with available diffusion MRI images, the Ashworth score of spastic paraparesis correlated with mean diffusivity in several brain regions, particularly left inferior parietal, superior parietal, and paracentral lobules (r’s>0.8, p’s< 0.001). In a subset of 10 clinically impaired A431E PSEN1 mutation carriers, mean diffusivity in white matter tracts underlying multiple cortical areas was higher relative to 8 impaired persons with late onset AD or ADAD mutations that do not cause spastic paraparesis.ConclusionThe pattern of flortaucipir distribution was atypical with disproportionate involvement of sensorimotor areas and parietal cortex. Higher flortaucipir signal was associated with more neuropsychiatric symptoms. Microstructural changes in white matter were more pronounced in persons with the A431E PSEN1 mutation and likely underlie the associated spastic paraparesis. The distinct neuroimaging features and associated neuropsychiatric manifestations observed in this cohort highlight the importance of comprehensively characterizing heterogeneous AD subtypes.

The effect of age and years of schooling on CERAD‐MX performance of Mexican preclinical carriers and non‐carriers’ relatives of the V717I APP mutation

AbstractBackgroundIn a previous study in a sample of young neurotypical adults (18 to 59 years), we found that years of schooling (YoS) have a greater effect than age on the tasks included in the neuropsychological protocol of the Mexican adaptation of the Consortium to Establish a Registry for Alzheimer’s Disease (CERAD‐MX).MethodThirty‐eight participants (Mage = 31.08 years; MYoS = 8.27 years), from Jalisco State in Mexico, identified as first‐degree relatives of symptomatic autosomal dominant Alzheimer’s disease (ADAD) carriers of the V71 7I APP mutation were divided into two groups, MC (n = 15) and NC (n = 23). Eight CERAD‐MX tasks were used: the Mini‐mental State Examination (MMSE), Semantic Verbal Fluency (SVF), Verbal Boston Naming (VBN), Word List Memory (WLM) with delayed recall (WLD) and recognition (WLR), as well as Constructional Praxis copy (CPC) and recall (CPR). We used z‐scores, then defined random vectors with Sklar’s theorem and a Gaussian dome from simulations of new samples obtained by inverse transform sampling.ResultIn both groups, YoS had a greater positive effect on the MMSE, WLM, WLD z‐scores. In the MC group only, this same effect was evident in the SVF and CPR scores, while in the NC group this effect was seen in the VBN, and CPC z‐scores. Age effect was more pronounced that YoS in MC performance on the CPC, while in NC, on SVF performance.ConclusionFor both groups, YoS has a greater effect than age on several tasks, showing that YoS is a confounding variable when analyzing performance on CERAD‐MX tasks. Moreover, in the MC group, age has a positive effect on CPC task performance suggesting that graphic abilities are not vulnerable to the presence of V717I APP mutation at the preclinical stage.

Improving User Experience: Designing an Intuitive and Visually Appealing Interface for University First Contact and Ombudsman Services for the Centro Universitario del Sur

In an unprecedented effort to comprehensively address the issues of gender violence, harassment, and bullying, the University of Guadalajara has implemented a support structure that involves the University Rights Ombudsman (DDU, Defensoria de los Derechos Universitarios, acronym in Spanish), the Unit for Equality (UI, Unidad de Igualdad, acronym in Spanish), and the First Contact offices (PC, Primeros Contactos, acronym in Spanish). Furthermore, The University of Guadalajara has established the Protocol for the Prevention, Attention, Sanction, and Eradication of gender violence (PPASE, Protocolo para la Prevención, Atención, Sansión y Erradicación de la Violencia de Género, acronym in Spanish) [1]. The University of Guadalajara has a network of university campuses throughout the state of Jalisco in Mexico. The Centro Universitario del Sur is one of these campuses, commonly referred to as CUSur. Despite these significant advancements in the implementation of the PPASE, the university community at CUSur generally faces challenges in understanding the processes, situations, and characteristics of these entities and regulations, placing victims or potential victims in a vulnerable situation. It is essential to expedite the information and attention processes for potential victims, and in this regard, technology can play a pivotal role. We are developing a technological intervention strategy to facilitate access for the university community, especially for victims who need to utilize the resources offered by the University of Guadalajara. To achieve this goal, we research user experience and identify the current usability of the webpage, focusing on understanding specific needs and challenges. The goal is to design an intuitive and appealing user interface that provides clear and accessible information about the available processes, services, and resources. Leveraging best practices in Human-Computer Interaction (HCI) is expected to enhance the visualization of the attention processes and foster trust in the entities responsible for providing support.

Assessment of Machine Learning Models for Remote Sensing of Water Quality in Lakes Cajititlán and Zapotlán, Jalisco—Mexico

Remote sensing has emerged as a promising tool for monitoring water quality (WQ) in aquatic ecosystems. This study evaluates the effectiveness of remote sensing in assessing WQ parameters in Cajititlán and Zapotlán lakes in the state of Jalisco, Mexico. Over time, these lakes have witnessed a significant decline in WQ, necessitating the adoption of advanced monitoring techniques. In this research, satellite-based remote sensing data were combined with ground-based measurements from the National Water Quality Monitoring Network of Mexico (RNMCA). These data sources were harnessed to train and evaluate the performance of six distinct categories of machine learning (ML) algorithms aimed at estimating WQ parameters with active spectral signals, including chlorophyll-a (Chl-a), turbidity, and total suspended solids (TSS). Various limitations were encountered during the study, primarily due to atmospheric conditions and cloud cover. These challenges affected both the quality and quantity of the data. However, these limitations were overcome through rigorous data preprocessing, the application of ML techniques designed for data-scarce scenarios, and extensive hyperparameter tuning. The superlearner algorithm (SLA), which leverages a combination of individual algorithms, and the multilayer perceptron (MLP), capable of handling complex and non-linear problems, outperformed others in terms of predictive accuracy. Notably, in Lake Cajititlán, these models provided the most accurate predictions for turbidity (r2 = 0.82, RMSE = 9.93 NTU, MAE = 7.69 NTU), Chl-a (r2 = 0.60, RMSE = 48.06 mg/m3, MAE = 37.98 mg/m3), and TSS (r2 = 0.68, RMSE = 13.42 mg/L, MAE = 10.36 mg/L) when using radiometric data from Landsat-8. In Lake Zapotlán, better predictive performance was observed for turbidity (r2 = 0.75, RMSE = 2.05 NTU, MAE = 1.10 NTU) and Chl-a (r2 = 0.71, RMSE = 6.16 mg/m3, MAE = 4.97 mg/m3) with Landsat-8 radiometric data, while TSS (r2 = 0.72, RMSE = 2.71 mg/L, MAE = 2.12 mg/L) improved when Sentinel-2 data were employed. While r2 values indicate that the models do not exhibit a perfect fit, those approaching unity suggest that the predictor variables offer valuable insights into the corresponding responses. Moreover, the model’s robustness could be enhanced by increasing the quantity and quality of input variables. Consequently, remote sensing emerges as a valuable tool to support the objectives of WQ monitoring systems.

Male flowers reveal the true identity of a new species of Hechtia (Bromeliaceae) from the Mexican state of Jalisco

A new species of Hechtia (Bromeliaceae, Hechtioideae) from the Mexican state of Jalisco and from the Pacific Lowlands biogeographical province is proposed as Hechtia carrilloi. Herbarium specimens of this new species were initially assigned to Hechtia santanae but after the study of living plants and fresh male flowers, we concluded that they differ in several features, including leaf surface (sparsely lepidote to glabrous vs. densely lepidote), flower size (4–5 mm long, 1–2 mm in diameter vs. 5–5.5 mm long, 3.8–4.2 mm in diameter), corolla shape (tubular vs. obconical), and anther color (maroon vs. reddish). A complete description based on female and male plants as well as fruits is provided. Likewise, photographs and illustrations showing diagnostic characters and habitat features are included. Additionally, an assessment of the conservation status of the new taxon based on the B criteria of the IUCN is presented.

Evaluation of Water Quality and the Potential Ecological and Health Risk in the Cajititlán Lagoon

Water security threatens the world's population, so the evaluation of the water quality of water bodies is one of the critical issues and is a current challenge to ensure the sustainability of ecosystems and human population.
 Objective: The aim is to estimate the physicochemical parameters and heavy metals of the water of the Cajititlán Lagoon during the period 2009-2023, to evaluate its water quality, ecological and health risks. The results will supply valuable information on water quality management and human health protection.
 Study Design: Ecological study, using water quality, pollution, ecological and health risk indices.
 Place and Duration of the Study: Cajititlán Lagoon during the period 2009-2023.
 Methodology: The water quality data of Lagoon Cajititlán were obtained through the State Water Commission of the government of the State of Jalisco. The analyses were performed monthly from 2009 to 2023. CWQI, WQI, NP, HPI, HEI, DC, PERI, HQ, HI, THI, CR and TCR indices were then calculated to find water quality and ecological and health risks.
 Results: The distribution of parameter concentration showed a drastic spatial variation, but not temporal. The TDS, Turbidity, pH, F, Al, As, Cr, Cu, Mn, Ni, Pb and Zn showed percentages above the CCME regulations, however most are within the NOM-001-SEMARNAT-2021. The heavy metals Al, Cr, Ni, Pb, Zn and As are those that present the % concentration of more than 100% with respect to the international standard. The remaining 14 parameters are within both national and international standards. Pearson's correlation analysis showed that most heavy metals have positive correlations with each other, except for Cr, Pb and Cu. Water quality according to WQI of 112 was categorized as poor-quality, while for CWQI all uses except livestock, water quality is poor (20-35). According to the NP index (0.19 to 670), heavy metal concentrations showed high contamination levels. The HPI index (89) showed moderate to elevated levels of heavy metal contamination. The HEI index showed levels <10, showing low pollution. The DC presented a value of 4, classified as a high degree of contamination. The PERI index showed that the ecological risk from heavy metals is high. Non-carcinogenic risk indices show that lagoon water is not suitable for drinking, and poses a high health risk via ingestion, while dermal contact poses no health risk to residential and recreational recipients. The results say that As would not pose a carcinogenic risk to residents and recreational receptors in different surface waters, while Cr may pose a slight carcinogenic risk to recreational receptors.
 Conclusions: According to the indices of water quality, ecological risk and health, the water quality of the Cajititlán Lagoon is poor, with a high degree of contamination and stands for ecological and health risks (non-carcinogenic).

Technologies, Government Communication and Uncertainty Management in Natural Disaster Situations

Natural disasters occur and management must adjust to the reality and needs that arise. The research analyzed Technologies, Government Communication and Uncertainty Management in Disaster Cases: The Case of Landslides and Floods, particularly the role played by government communication in the disaster that occurred in the municipality of San Gabriel in the state of Jalisco, on June 2, 2019. The methodology used was a case study and also of a descriptive nature, studying the case of landslides and floods generated by an avalanche of mud, water, stones and tree trunks that invaded a large part of the municipal seat of San Gabriel, located in the south of the state of Jalisco Mexico and caused the loss of five human lives.

A Geospatial Model to Identify Areas Associated with Late- Stage Breast Cancer: A Spatial Epidemiology Approach.

The aim of this study was to show how a geospatial model can be used to identify areas with a higher probability for late-stage breast cancer (BC) diagnoses. Our study considered an ecological design. Clinical records at a tertiary care hospital were reviewed in order to obtain the place of residence and stage of the disease, which was classified as early (0-IIA) and late (IIB-IV) and whose diagnoses were made during the 2013-2017 period. Then, they were geolocated to identify the distribution and spatial trend. Subsequently, the pattern of location, i.e. scattered, random and concentrated, was statistically assessed and a geospatial model was elaborated to determine the probability of late diagnoses in the state of Jalisco, Mexico. There were 1 954 (N) geolocated BC diagnoses: 58.3% were late. During the five-year period, a southwest-northeast trend was identified, nearly 9.5% of the surface of Jalisco, where 6 out of 10 (n= 751) late- stage diagnoses were concentrated. A concentrated and statistically significant pattern was identified in the southern, central and northern Pacific area of Jalisco, where the geospatial model delimited the places with the highest probability of late clinical stages (p <0.05). The geographical differences associated with the late diagnoses of BC suggest it is necessary to adapt and focus the strategies for early detection as an alternative to create a major impact on the population. Reproducible analysis tools were used in other contexts where geolocation data are available to complement public policies and strategies aimed to control BC.

Association of bat flies (Diptera: Streblidae) and bats: Richness and host specificity in Western Mexico.

As part of a widespread ecological study on the ectoparasites of bats in Western Mexico, we report new information on the specificity, and distribution of bat flies in a geographical transition zone between the neartic and neotropical zones. Fifteen (15) species of bats representing three families (Mormoopidae, Phyllostomidae, and Vespertilionidae) were collected in 10 locations throughout western Mexico. A total of 276 bat flies, representing 6 genera and 25 species, were identified four species of the bat flies are new records for the region indicating an expansion of the distribution for Trichobius corynorhini (Cockerll, 1910), T. hoffmannae (Guerrero & Morales-Malacara, 1996), T. intermedius (Peterson & Hürka, 1974) and Nycterophilia natali (Wenzel, 1966). These records update the species richness of streblids to 40 species in the state of Jalisco, representing 65.6% of the total number of 61 species of streblids recorded in Mexico. The interaction network showed a high degree of specialization of the bat flies towards their hosts (H2'=0.92). Similarly, the specificity indices showed that there is a high ecological specificity (SI) with an average of 92%. of all the bat flies was associated with their primary hosts, while the average value of specificity of the phylogenetic trees (STD) of the six streblid species that presented more than one host was 1.7%, indicating a high specificity. The results of this study provide relevant information on bat-parasite associations and highlight the need for further research to obtain information on the geographic distribution of streblids and their hosts.

Description of a new Brazilian species of Acanthoderini, new records in American Cerambycinae and Lamiinae, and a replacement name for a genus (Coleoptera, Cerambycidae).

A new species of Acanthoderini is described from Brazil: Penaherreraus birai sp. nov. New records: Susuacanga rotundipennis (Bates, 1884) (Cerambycinae Eburiini) is recorded from the Mexican state of Jalisco; Psyrassa xestioides (Bates, 1872) (Cerambycinae, Elaphidiini) from the Mexican state of Oaxaca; Anisopodus dispar Bates, 1885 from Nicaragua (Lamiinae, Acanthocinini); and Lasiolepturges zikani Melzer, 1928 from Brazil (Pará) (Lamiinae, Acanthocinini). Variations in Urgleptes navarretei Santos-Silva, Nascimento, Botero & McClarin, 2021 are reported. Charlesella is proposed as a replacement name for Pygmaeopsis Schaeffer, 1908 (Coleoptera, Cerambycidae, Lamiinae, Desmiphorini), preoccupied by Pygmaeopsis Warren, 1907 (Lepidoptera, Geometridae).

Seroepidemiology Study of Porcine Epidemic Diarrhea Virus in Mexico by Indirect Enzyme-Linked Immunosorbent Assay Based on a Recombinant Fragment of N-Terminus Domain Spike Protein.

Porcine epidemic diarrhea (PED) is an intestinal disease caused by the porcine epidemic diarrhea virus (PEDV) and affects Mexico's swine industry. Despite the disease initially being described in Mexico in 2013, there has been no research into the virus's seroepidemiology carried out in Mexico. Thus, the goal of this study was to develop an indirect ELISA (iELISA) based on a recombinant N-terminal domain truncated spike (S) protein (rNTD-S) of PEDV to evaluate serum obtained from different pig-producing states in Mexico. A total of 1054 sera were collected from pig farms, slaughterhouses, and backyard production in the states of Aguascalientes, Guanajuato, Hidalgo, Jalisco, Morelos, Queretaro, Sinaloa, and Veracruz between 2019 and 2021. The rNTD-S protein was expressed in E. coli BL21 (DE3) cells. Negative and positive serum samples used in the iELISA were previously tested by Western blot. According to our findings, 61.66% of the serum samples (650/1054) were positive, with Jalisco having the highest percentage of positive samples, at a rate of 21.44% (226/1054). This is the first seroepidemiology study of PEDV carried out in Mexico, revealing that the virus is still circulating since the initial outbreak; furthermore, it provides an overview of PEDV's spread and high level of persistence across the country's key swine-producing states.

A new species of 𝑉𝑎𝑒𝑗𝑜𝑣𝑖𝑠 from the mountains of west Mexico (Scorpiones: Vaejovidae)

One new species of scorpion is described from the high lands of the Trans-Mexican Volcanic Belt province in the Mexican state of Jalisco; this species inhabit the pine forest of the Sierra de Quila mountain range. It is assigned to the “𝑚𝑒𝑥𝑖𝑐𝑎𝑛𝑢𝑠” group and compared with other species geographically closer or morphologically similar, besides biology. The species honors Dr. Tila María Pérez Ortiz for its great career in arachnology.

Evaluation of the degree of social responsibility in micro and small businesses in the food service sector

The objective of this study was to evaluate the degree of social responsibility in micro and small companies in the food service sector. The evaluations were applied to 63 fixed establishments dedicated to the preparation, sale and consumption of food, distributed in eight municipalities of the state of Jalisco, Mexico, which were grouped according to the categories established in the North American Industrial Classification System. A single visit survey was applied to each establishment. The Corporate Social Responsibility index was applied to the results. 6.3 % of the establishments were Socially Responsible, 54 % moderately responsible and 39.7 % as not responsible. The last two ones have elements of Corporate Social Responsibility, but not as structured programs. It contributes to obtain a deeper understanding of the problems involved in trying to apply a sustainable administrative management to accommodate a system of social responsibility, which supports and records the decisions that are being made in the company from this perspective, in order to plan successful intervention strategies.

Dietary microRNAs: Could They Be Considered Nutraceuticals?

ADVERTISEMENT RETURN TO ARTICLES ASAPPREVViewpointNEXTDietary microRNAs: Could They Be Considered Nutraceuticals?Daniel A. Jacobo-Velázquez*Daniel A. Jacobo-VelázquezTecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL MexicoTecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Guadalajara, Av. General Ramon Corona 2514, C.P. 45201, Zapopan, Jalisco Mexico*Email: [email protected]More by Daniel A. Jacobo-Velázquezhttps://orcid.org/0000-0002-9478-2570, Griselda Rabadán-ChávezGriselda Rabadán-ChávezTecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL MexicoMore by Griselda Rabadán-Chávez, and Edwin E. Reza-ZaldívarEdwin E. Reza-ZaldívarTecnologico de Monterrey, Institute for Obesity Research, Av. Eugenio Garza Sada 2501 Sur, C.P. 64849 Monterrey, NL MexicoMore by Edwin E. Reza-ZaldívarCite this: ACS Food Sci. Technol. 2023, XXXX, XXX, XXX-XXXPublication Date (Web):June 15, 2023Publication History Received31 May 2023Accepted6 June 2023Published online15 June 2023https://doi.org/10.1021/acsfoodscitech.3c00210© 2023 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views-Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit Read OnlinePDF (2 MB) Get e-AlertscloseSUBJECTS:Bacteria,Food,Genetics,Plant derived food,Vesicles Get e-Alerts

New species of Hyperplatys Haldeman, 1847 and Urgleptes Dillon, 1956 (Coleoptera: Cerambycidae) from Mexico.

Two new species of Acanthocinini (Lamiinae) from Mexico are described: Hyperplatys mexicanus sp. nov. from the state of Morelos; and Urgleptes martini sp. nov. from the states of Jalisco and Morelos.

Treatment of tequila distillation volatile residues by electrochemical oxidation using titanium electrodes

ABSTRACT Tequila production occurs in Mexico’s designated area of origin, principally in the Jalisco State. Its residues are a challenge in treatment and tracking due to a lack of technology, non-economic treatments available, low environmental consciousness and incipient control from authorities. In 2021, average production was close to 1.5 million tequila litres per day with an estimated residue yield of 10–12 litres of stillage (tequila vinasses) per tequila litre produced, including volatile fractions. This research aims to reduce organic matter by electrooxidation (EO) from 5 distillation volatile residual effluents (two-stage still distillation) from three tequila distilleries, first and second-stage heads and heads and tails and second-stage non-evaporated fraction. Round 3 mm titanium (grade-1) electrodes (one anode and one cathode) were used, with fixed voltage to a value of 30 VDC at 0, 3, 6, 9 and 12 h with 75 experiments. Gas chromatography was used to analyse methanol, ethanol, acetaldehyde, ethyl acetate, n-propanol, sec-butanol, iso-butanol, n-butanol, iso-amyl, n-amyl, and ethyl lactate content. Treatment shows positive results, reducing organic matter content in all effluents in a Chemical Oxygen Demand COD range of 580–1880 mg/L.h, particularly useful in the second-stage non-evaporated fraction for water recovery. HIGHLIGHTS Residual effluent treatment is beneficial to environmental and resource sustainability. Process without adding materials achieving cleaner treated effluents. Process aimed as the final step to recover water. This process could help the Tequila industry to reach a higher sustainability level by reducing water usage and untreated residues.

Prevalence of symptoms, comorbidities, and reinfections in individuals infected with Wild-Type SARS-CoV-2, Delta, or Omicron variants: a comparative study in western Mexico.

The variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) have been classified into variants of interest (VOIs) or concern (VOCs) to prioritize global monitoring and research on variants with potential risks to public health. The SARS-CoV-2 high-rate mutation can directly impact the clinical disease progression, epidemiological behavior, immune evasion, vaccine efficacy, and transmission rates. Therefore, epidemiological surveillance is crucial for controlling the COVID-19 pandemic. In the present study, we aimed to describe the prevalence of wild-type (WT) SARS-CoV-2 and Delta and Omicron variants in Jalisco State, Mexico, from 2021 to 2022, and evaluate the possible association of these variants with clinical manifestations of COVID-19. Four thousand and ninety-eight patients diagnosed with COVID-19 by real-time PCR (COVIFLU, Genes2Life, Mexico) from nasopharyngeal samples from January 2021 to January 2022 were included. Variant identification was performed by the RT-qPCR Master Mut Kit (Genes2Life, Mexico). A study population follow-up was performed to identify patients who had experienced reinfection after being vaccinated. Samples were grouped into variants according to the identified mutations: 46.3% were Omicron, 27.9% were Delta, and 25.8% were WT. The proportions of dry cough, fatigue, headache, muscle pain, conjunctivitis, fast breathing, diarrhea, anosmia, and dysgeusia were significantly different among the abovementioned groups (p < 0.001). Anosmia and dysgeusia were mainly found in WT-infected patients, while rhinorrhea and sore throat were more prevalent in patients infected with the Omicron variant. For the reinfection follow-up, 836 patients answered, from which 85 cases of reinfection were identified (9.6%); Omicron was the VOC that caused all reported reinfection cases. In this study, we demonstrate that the Omicron variant caused the biggest outbreak in Jalisco during the pandemic from late December 2021 to mid-February 2022 but with a less severe form than the one demonstrated by Delta and WT. The co-analysis of mutations and clinical outcomes is a public health strategy with the potential to infer mutations or variants that could increase disease severity and even be an indicator of long-term sequelae of COVID-19.

Potential of the CHIRPS Database for Extreme Precipitation Risk Studies. Assessment in the State of Jalisco (Mexico)

Potential of the CHIRPS Database for Extreme Precipitation Risk Studies. Assessment in the State of Jalisco (Mexico)