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In this paper we examine the relationships between students' attitudes towards mathematics and technology, therefore, we take a Galbraith and Hines' scale (1998, 2000) about mathematics confidence, computer confidence, computer and mathematics interaction, mathematics motivation, computer motivation, and mathematics engagement. 164 questionnaires were applied to undergraduate students of several profiles: business and management, mecatronic engineering, industrial engineering, strategic system engineering and mechanic engineering all they in a study carried out at the "Universidad Politécnica de Aguascalientes". The statistical procedure used was factorial analysis with an extracted principal component. The Hypothesis: Ho: ?=0 has no correlation, while Ha: ? ?0 does. Statistics test to prove: ?[super script 2], Bartlett test of sphericity, KMO (Kaiser- Meyer_Olkin) Significance level: a=0.05; p<0.05 therefore reject Ho if X [superscript 2] [subscript calculated] > X [superscript 2] [subscript tabulated]. The results obtained from the sphericity test of Bartlett KMO (0.859), ?[superscript 2] [subscript calculated], 539.612 with 10 df > ?[superscript 2] [subscript tabulated], Sig. 0.00 < p 0.01, MSA (MATH-CONFI 0.853; MATH-MOTI 0.884; MATH-ENGA 0.846; COMPU-CONFI 0.868 and INTEMACO 0.848) provide evidence to reject "Ho". Thus, the variables of Galbraith and Hines' scale help us to understand the student's attitude toward mathematics and technology.

Sotol is a traditional distilled alcoholic beverage produced in Mexico and the United States. Unfortunately, local authorities have detected that these beverages are sometimes adulterated with toxic substances such as ethylene glycol. This illegal practice of adulteration is dangerous and can cause serious health problems for the end consumers. In this work, an alternative, reliable, and rapid method is presented for identifying the presence of ethylene glycol in sotol samples using UV-Vis spectroscopy and neural networks with an accuracy of up to 100%. [ABSTRACT FROM AUTHOR]

Chili powder is an important condiment around the world. However, according to various reports, the presence of pathogenic microorganisms could present a public health risk factor during its consumption. Therefore, microbiological quality assessment is required to understand key microbial functional traits, such as antibiotic resistance genes (ARGs). In this study, metagenomic next-generation sequencing (mNGS) and bioinformatics analysis were used to characterize the comprehensive profiles of the bacterial community and antibiotic resistance genes (ARGs) in 15 chili powder samples from different regions of Mexico. The initial bacterial load showed aerobic mesophilic bacteria (AMB) ranging between 6 × 103 and 7 × 108 CFU/g, sporulated mesophilic bacteria (SMB) from 4.3 × 103 to 2 × 109 CFU/g, and enterobacteria (En) from <100 to 2.3 × 106 CFU/g. The most representative families in the samples were Bacillaceae and Enterobacteriaceae, in which 18 potential pathogen-associated species were detected. In total, the resistome profile in the chili powder contained 68 unique genes, which conferred antibiotic resistance distributed in 13 different classes. Among the main classes of antibiotic resistance genes with a high abundance in almost all the samples were those related to multidrug, tetracycline, beta-lactam, aminoglycoside, and phenicol resistance. Our findings reveal the utility of mNGS in elucidating microbiological quality in chili powder to reduce the public health risks and the spread of potential pathogens with antibiotic resistance mechanisms. [ABSTRACT FROM AUTHOR]

Simple Summary: The aquaculture industry is constantly growing and contributes to the food demand of the world's population, which is already more than 8 billion people. In aquaculture, antibiotics are commonly used to mitigate the appearance of bacterial diseases that cause considerable damage to production. However, this activity induces antibiotic resistance, which risks the health of cultured organisms and consumers. Therefore, alternative supplements such as prebiotics have been emphasized, with their management and due to their multiple beneficial effects, as viable to improve the conditions of production and health of aquatic animals. In developed countries, these supplements are widespread in culture-producing commercial fish, representing a rich protein source worldwide. However, in developing countries such as Mexico, this technology is rare in commercial fish and practically non-existent in endemic fish species. The importance of such supplements for use in the small- and large-scale aquaculture of fish in developing countries should be underscored as relevant for their application in both commercial and endemic fish cultivated in developing countries. Continued human population growth has resulted in increased demand for products, including those derived from aquaculture. The main challenge in aquaculture is producing more every year. In recent years, environmentally friendly supplements that provide the necessary pathways for optimal production have been emphasized. One of them is prebiotics, selectively utilized substrates by host microorganisms conferring a health benefit. Interest in applying prebiotics in global fish farming has increased in recent years as it has been shown to improve growth, boost the immune system, resist stress conditions, and cause the modulation of digestive enzymes. These effects reflect reduced production and disease costs. However, in Latin American countries such as Mexico, large-scale use of these food supplements is needed as a sustainable alternative to improve fish production. This paper gives a review of the current advances obtained with the application of prebiotics in commercially farmed fish worldwide, mentions the prebiotics to use in the aquaculture industry, and updates the status of studies about the used prebiotics in global commercial fish cultivated in Mexico, as well as freshwater and marine endemic fish in this country. Also, the limitations of prebiotics application in terms of their use and legislation are analyzed. [ABSTRACT FROM AUTHOR]

The Kosakonia cowanii Cp1 strain was isolated from seeds of Capsicum pubescens R. & P. cultivated in Michoacan, Mexico. Genetic and ecological role analyses were conducted for better characterization. The results show that genome has a length of 4.7 Mbp with 56.22% G + C and an IncF plasmid of 128 Kbp with 52.51% G + C. Furthermore, pathogenicity test revealed nonpathogenic traits confirmed by the absence of specific virulence-related genes. Interestingly, when fungal inhibitory essays were carried out, the bacterial synthesis of volatile organic compounds (VOCs) with antifungal activity showed that Sclerotinia sp. and Rhizoctonia solani were inhibited by 87.45% and 77.24%, respectively. Meanwhile, Sclerotium rolfsii, Alternaria alternata, and Colletotrichum gloeosporioides demonstrated a mean radial growth inhibition of 52.79%, 40.82%, and 55.40%, respectively. The lowest inhibition was by Fusarium oxysporum, with 10.64%. The VOCs' characterization by headspace solid–phase microextraction combined with gas chromatography–mass spectrometry (HS-SPME-GC–MS) revealed 65 potential compounds. Some of the compounds identified with high relative abundance were ketones (22.47%), represented by 2-butanone, 3-hydroxy (13.52%), and alcohols (23.5%), represented by ethanol (5.56%) and 1-butanol-3-methyl (4.83%). Our findings revealed, for the first time, that K. cowanii Cp1 associated with C. pubescens seeds possesses potential traits indicating that it could serve as an effective biocontrol. [ABSTRACT FROM AUTHOR]

A method was developed to determine glyphosate, aminomethylphosphonic acid (AMPA), and glufosinate in soil. The worldwide use of this herbicide in agricultural activities, and its known negative effects on both the environment and health, have generated interest in the establishment of methodologies for its determination in several matrices at trace level. The development of analytical methods for the determination of glyphosate, AMPA, and glufosinate is challenging due to its present amphoteric properties, high solubility in water, low molecular weight, high affinity to the ions presents in the soil, and lack of chromophore groups in its structure, making its quantification difficult. The proposed method exhibits a linear range from 5.0 to 600 µg/kg with limits of detection of 1.37, 0.69 and 1.22 μg/kg, limits of quantification of 4.11, 2.08, and 3.66 μg/kg for glyphosate, AMPA, and glufosinate, respectively, and adequate repeatability and reproducibility (coefficients of variation <8.0% and recovery percentages between 93.56% and 99.10%). The matrix effect was calculated for each analyte, proving to be a good alternative for the determination of these contaminants. The described method was applied to 46 soil samples collected from crop fields in Hidalgo, Mexico, with concentrations varying from not detected to 4.358 μg/kg (for AMPA). [ABSTRACT FROM AUTHOR]

Copyright of Ecosistemas y Recursos Agropecuarios is the property of Universidad Juarez Autonoma de Tabasco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Estudios Sociológicos is the property of El Colegio de Mexico AC and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Yucatan is a region with a high impact of water contamination since it has a karst type soil favoring contaminants entry into the phreatic level, the only source of freshwater in the area. However, no studies report pesticides in water for human consumption or the risk it represents. The objective of this study was to detect and measure pesticide concentrations in domestic tap water to estimate the risk (carcinogenic and non-carcinogenic) to health. A non-probabilistic sampling was applied of 48 tap water sources, and then pesticide detection with solid-phase extraction gas chromatography coupled to the electron capture and flame photometric detectors allowed the estimation of risk through hazard ratios. The present results suggest that aldrin, heptachlor, and β-BHC residues in domestic tap water from Ticul, Yucatan, pose a risk to children's health, particularly for potential carcinogenic risks. [ABSTRACT FROM AUTHOR]

Simple Summary: Climate change has intensified high environmental temperatures, subjecting farm animals to heat stress conditions. In this study, the thermoregulatory responses of Blackbelly adult ewes and female lambs, during the summer under tropical conditions, in southern Mexico were analyzed. The combination of temperature and relative humidity in summer in tropical conditions causes heat stress in hair ewes, resulting in thermoregulatory problems. To counteract these effects, females modify their physiological constants to avoid reproductive and productive problems under these production conditions. High environmental temperatures cause heat stress in ewes, resulting in thermoregulatory problems. In this study, the thermoregulatory responses of Blackbelly adult ewes (G1, n = 14) and female lambs (G2, n = 7), during the summer under tropical conditions, in southern Mexico were analyzed. Different physiological variables and skin temperatures (ST) of the ewes were recorded. Breathing frequency (BF) values were similar between groups at 116.73 ± 33.598 bpm (G1) and 113.661 ± 34.515 bpm (G2) (p > 0.05). In the case of skin elasticity (SE), there were no significant differences between the time of day and the age of the ewes (p > 0.05). Significant differences were observed between groups for BF, rectal temperature (RT), and heart rate (HR) values (p < 0.05). All ST values, for both groups, were significantly higher during the afternoon (p < 0.001). In general, all Blackbelly adult ewes and female lambs during the summer present severe heat stress conditions as a result of an increase in physiological constants and ST. It is concluded that all ewes thermoregulate body temperature by modifying different physiological variables to counteract the effect of heat stress. [ABSTRACT FROM AUTHOR]

In patients with rheumatoid arthritis (RA) exercise improves muscle strength and decreases fat mass, whereas the consumption of a Mediterranean diet (MD) also has been associated with higher grip strength. Therefore, it is important to explore the combined effects of these interventions on hand grip strength and weight in RA. To determine the combined effect of an MD and a dynamic exercise program (DEP) on hand grip strength in women with RA. In a randomized clinical trial, 106 women with RA were included and assigned to the DEP-MD, DEP and MD groups. Weight, body circumferences, Disease Activity Score-28, Health Assessment Questionnaire Disability Index [HAQ-DI], and hand grip strength were measured at baseline and 24 weeks after the interventions. After 24 weeks, hand grip strength showed a significant increase in the DEP group (median 2 kg) compared with DEP-MD (median 0.5 kg) and MD (median −0.5 kg) groups (p = 0.03). In the MD group weight and waist circumference showed a significant decrease (−2.2 kg and −4.3 cm) compared with DEP-MD (0.85 kg and 1.9 cm) and DEP (0.35 kg and 0.5 cm) groups (p < 0.01). Finally, a significant decrease was observed in the HAQ-DI after treatment in the DEP-MD group of −0.5 and the DEP group of −0.25 compared with the MD group with no change (p = 0.03). In women with RA, in addition to pharmacological treatment, DEP increases hand grip strength and an MD decreases weight and waist circumferences, while the combination of DEP and MD improves disability. [ABSTRACT FROM AUTHOR]

A pesticide characterization is presented for two highly technified valleys in northwest Mexico: Culiacan Valley (CV) in Sinaloa and Yaqui Valley (YV) in Sonora. Approximately 250,000 kg of active ingredients are used every year, half of which are considered highly hazardous pesticides. Legacy pesticides are still present in the soils of these valleys. The aim of the present study was to identify and quantify a wide variety of pesticides in soils and correlate their concentrations with historical and current use. Agricultural soils from both valleys were sampled and analyzed using accelerated solvent extraction and subsequent quantification by gas chromatography with selective detectors. The most frequently detected pesticides (mean, µg g−1) in CV were organochlorines (0.1967), organophosphates (0.0928), synthetic pyrethroids (0.2565), organonitrogen (0.0552), and miscellaneous pesticides (0.1851). In YV, the most frequently detected pesticides were organochlorines (0.8607), organophosphates (0.0001), synthetic pyrethroids (0.0124), and miscellaneous pesticides (0.0009). The pesticides were more diverse in CV compared to those of YV, which was based on the types of crops produced. Both locations presented highly hazardous pesticides, including concentrations above the action levels established by the Canadian Soil Quality Guide. A follow-up risk assessment is recommended to assess potential effects. [ABSTRACT FROM AUTHOR]

In northern Sinaloa state, Mexico, little is known on organophosphate pesticide transport and fate in agricultural drainage systems. Spatial and temporal variation of chlorpyrifos and dimethoate was assessed in two agricultural drainage ditches (Buenaventura and Burrión) and risk for aquatic life was estimated. Analysis was made by high performance liquid chromatography and risk estimates were determined following international reference frameworks. In water, the highest chlorpyrifos concentration in the Buenaventura ditch was 5.49 µg L−1, and 3.43 µg L−1 in the Burrión ditch. Dimethoate was quantified only once in both ditches (0.44 µg L−1 and 0.49 µg L−1). In sediment, chlorpyrifos was quantified only in the Burrión ditch (242 µg kg−1). Chlorpyrifos concentrations surpassed water and sediment quality criteria, representing a hazard for environmental and human health, as both ditches discharge into the Gulf of California and are used for capture of commercial species such as the grey mullet (Mugil cephalus) and cauque prawn (Macrobrachium americanum). [ABSTRACT FROM AUTHOR]

Objective: To evaluate the reproductive characteristics of male goats (Capra hircus L.) with habitual management on their herds at Benito Juarez municipality, Guerrero, Mexico. Design/methodology/approach: Ten male Creole goats from seven herds were evaluated, aged between 2 to 7 years and 2 to 3 body condition (BC). The males were evaluated regarding their sexual behavior, sperm quality, physical examination and reproductive clinical evaluation. Results: All the assessed male Creole goats displayed sexual behavior (P<0.05). However, for the males of three of the evaluated herds the sexual behavior was lower (P<0.05). Of the ten electro-ejaculated males, 20% ejaculated and 80% did not (P<0.05). From the males that ejaculated, a sperm concentration of 224×106 and 16×106 sperm mL-1 was recorded for the first and second male. Finally, the physical and clinical reproductive evaluation concurred with the established parameters for the species. Limitations of the study/implications: Under the conditions in which the study was carried out, it was not possible to evaluate males in the same age conditions and reproductive characteristics. However, this allowed collecting information from field conditions so that producers can apply it for herd improvement. Findings/conclusions: The male Creole goats of the evaluated herds showed intense sexual behavior with low sperm characteristics. [ABSTRACT FROM AUTHOR]

Copyright of Agro Productividad is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Agro Productividad is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction: The use of immunotherapy in Mexico has been used since 2012 with ipilimumab and since 2015 with nivolumab and pembrolizumab, so it is a matter of necessity to know the experience of these drugs. Material and methods: An observational, descriptive, cross-sectional, and retrospective study was performed in Médica Sur Hospital, where with dossiers from 2012 to June 2018 patients with metastatic cancer who received immunotherapy with ipilimumab, nivolumab, and pembrolizumab for six months were evaluated, searching as principal outcomes the adverse effects of those drugs and as secondary outcomes the response to treatment. Results: Seventy subjects fulfilled the inclusion criteria for the study, and 42 (60%) were women with an average age of 60.73 ±13.64 years (16-82 years). The pathologies that received immunotherapy were the following: melanoma and lung cancer. The most frequent clinical and laboratory adverse effects were as follows: fatigue - 32 (45.71%), asthaenia - 30 (42%), nausea - 8 (11.4%), diarrhoea - 8 (11.4%), and rash - 7 (10%). The worst adverse effects were respiratory and endocrinological: pneumonitis - 10 (14.28%), hypothyroidism - 4 (5.71%), hyperglycaemia - 1 (1.4%), and hypophysitis - 2 (2.9%). With respect to treatment response: complete response - 8 (11.4%), partial response - 11 (15.71%), stable disease - 33 (47.14%), and disease progression - 19 (27.14%). Conclusions: The most common adverse effects did not condition the suspension of treatment or increase in intra-hospital stay, but there were some adverse effects that actually had an impact on evolution, hospital stay, and mortality. [ABSTRACT FROM AUTHOR]

This article discusses experimental observations conducted in neuroscientific research. The authors comment on the development in neuroscience education in Mexico and describe advancements made in its study from the mid-19th century to the present day. The role of such figures as Gregor Mendel and José Joaquín Izquierdo are examined.

This article presents an editorial in which the authors discuss the application of a multiple-choice examination in the study of neuroscience in Mexico. They consider the quality and effectiveness of this measurement of medical knowledge. They also comment on the importance of a neuroscience education as a foundation for students studying physiology.

In this article the degree of compliance in South Lower California is analyzed empirically, from statistical data generally and from the design of an indicator in particular, the democratic principle one person-one vote, understanding that the institutions and mechanisms of the representative democracies are the main objects of analysis of the quality of a democracy. This exercise resides in the observation and contrast of the equality of the power of each vote to conform an effective representation, from the calculation of the equality in the vote weight. [ABSTRACT FROM AUTHOR]

Many studies have shown the ability of media—television, movies, and virtual reality (VR) experiences—to elicit emotions. Nevertheless, it is still unclear how the different factors involved—user related and medium related—play a role in producing an emotional response during a VR experience. We investigate this issue, analyzing the role played by the cultural and technological backgrounds of the users in the emotional responses to VR. Specifically, we use the “core affect” model of emotions developed by Russell (2003) to explore how these factors influence the way in which participants experience virtual worlds. Our sample includes 20 Mexican participants: 8 living in El Tepeyac, a small rural and isolated Mexican village characterized by a very primitive culture, and 12 high civilized inhabitants of Mexico City. The “Green Valley,” a noninteractive, relaxing immersive environment showing a mountain landscape around a calm lake, was used to induce relaxation in the two groups during an ambulatory surgical operation. To investigate the effects of VR on the relaxation process, we measured participants' physiological (heart rate) and emotional (VAS-A) responses before, during, and after the operation. The results show that VR significantly modified the core affect (reduced arousal) in all participants but that the final emotional response produced by this change was influenced by the attribution process: the civilized inhabitants of Mexico City, who were able to attribute the reduced arousal to the VR experience, reported a significant reduction in the self-reported level of anxiety, while people from El Tepeyac showed a reduction in their physiological reactions but not in their perceived anxiety. [ABSTRACT FROM AUTHOR]

This is the first report about the presence of pesticide residues in water and sediments from Chacahua-Pastoria Lagoon System in the Oaxaca Coast, Mexico. Organochlorine and organophosphate pesticides were analyzed in water and sediment samples collected during rainy and dry seasons in 2018. The pesticides extraction was carried out by 525.2 EPA and QuEChERS methods for water and sediments samples, respectively. The quantification was done by gas chromatography coupled to electron microcapture (μECD) and flame photometric (FPD) detectors. Univariate and multivariate analysis were carried out to evaluate the distribution patterns, comparing between lagoons, seasons and matrices. The spatial distribution of malathion and organochlorines in water showed the highest values near to adjacent land with some patterns differences. DDT was the most frequent in water and sediments samples, showed the highest concentrations in the Pastoria Lagoon. These results indicate the need to establish a permanent monitoring programs to implement mitigation measures. • Pesticide residues were presented in water and sediments of the Chacahua-Pastoria lagoon system in Oaxaca, Mexico. • The pesticide distribution patterns were different comparing between lagoons, seasons and matrices. • DDTs was the most frequent compounds in water and sediments samples, with the highest concentrations in the Pastoria Lagoon. • These results indicate the need to establish a permanent monitoring programs to implement mitigation measures. [ABSTRACT FROM AUTHOR]

A comparative study of two corn nixtamalization processes is presented, one in the traditional way of the Michoacan region of Mexico, and the other using solar devices. The corn selected for the process was a nontransgenic endemic dark corn. For the nixtamalization process, a solar concentration oven was used; this process using the solar device is simple and affordable for communities. For characterization, the properties of the antioxidant content of dark corn were analyzed for both processes, and the highest concentration of antioxidants between the two varieties of corn was obtained. The antioxidant capacity in the two varieties of black corn was quantified and determined, and the anthocyanin pigments were extracted with methanol. The total anthocyanin content (CAT) was evaluated by the pH difference method, and the antioxidant capacity by the DPPH method. In the solar nixtamalization process, a higher content of CAT anthocyanins and antioxidant capacity were obtained. Therefore, the solar energy process was proposed as a sustainable energy option, and we concluded that black corn nixtamalized with a solar oven had high antioxidant levels and could be used as a nutritious food. [ABSTRACT FROM AUTHOR]

This study describes the development of a multifunctional solar system designed for implementation in some communities in the Meseta Purepecha, Michoacan, Mexico. The multifunctional solar system device—called T'imani (in the Purepecha language)— consists of two modules designed for domestic use: one for cooking food, the other for heating water. The thermal characterization is based on the use of standardized tests for both modules. The parameters obtained indicate that use device is suitable for in the conditions of solar resources in this region. Additionally, a pilot test was carried out to implement some devices that show favorable preliminary results for domestic use. Hence, due to the device functionality and that in Mexico there is abundant solar resources it is feasible to implement the device in many places throughout the country. [ABSTRACT FROM AUTHOR]

Backgrounds: On March 11, 2020, the World Health Organization (WHO) declared the novel coronavirus (COVID-19) outbreak a global pandemic, which changed the residents' teaching and learning process. The purpose of this study was to determine residents' satisfaction and impressions on their training during the pandemic in a tertiary pediatric hospital., Methods: This was a descriptive cross-sectional study. An online survey was designed to determine residents' demographic and personal characteristics, as well as their perception about the theoretical and practical training, as well as about their emotional situation. The analysis separated medical students from surgical students in order to identify any differences existing between these groups, for which χ2 was calculated., Results: Overall, 148 of 171 residents (86.5%) responded to the questionnaire; 75% belonged to the medical specialty and 25% to the surgical specialty. Statistically significant differences were found in terms of those training aspects they were concerned about during the pandemic (p < 0.001) and about the difficulties associated with online learning (p = 0.001). Differences were also found regarding their satisfaction toward the time needed to complete their thesis (p = 0.059) and activities outside the hospital (p = 0.029). Regarding their degree of satisfaction in general, most medical specialty students felt slightly satisfied (43.2%) and surgical specialty students felt mostly neutral (37.8%). Regarding their feelings about their mental health, statistically significant differences were found between both groups (p = 0.038) although both groups reported the same percentage of overall dissatisfaction (2.7%) in this area., Conclusion: The COVID-19 pandemic has brought significant challenges to medical education systems. Lack of practice in decision-making and maneuver execution are concerns for residents and may affect their future professional performance., (© 2022. The Author(s).)

Background: The Mexican Society of Pediatric Endocrinology presents recommendations for the diagnosis and treatment of precocious puberty (PP), a condition defined as the development of sexual characteristics due to an increase in pituitary gonadotropin secretion before 8 or 9 years of age in girls and boys, respectively., Methods: Three systematic reviews were conducted: controlled clinical trials on interventions for PP treatment, diagnostic tests, and observational studies on the long-term effects of PP. The quality evaluation and data extraction from the studies were conducted by two independent reviewers. The Scottish Intercollegiate Guidelines Network and the Oxford Center for Evidence-Based Medicine systems were used for grading the quality of evidence for recommendations on intervention and diagnosis, respectively. Recommendations were submitted to a consensus by a Delphi method and were validated by another 143 certified pediatric endocrinologists through an online questionnaire., Results: The group generated 12 recommendations on the diagnosis of PP, seven on the diagnosis of secondary causes of PP, eight on interventions for inhibition of puberty, five on other interventions for PP treatment, and 14 for the monitoring and follow-up of these patients. The online questionnaires submitted to certified pediatric endocrinologists showed more than 90% of approval for each one of the recommendations., Conclusions: Although a high degree of consensus for the recommendations for diagnosis, treatment, and monitoring of PP among pediatric endocrinologists was achieved, most of these recommendations showed a low level of evidence., (Copyright: © 2020 Permanyer.)

The Mexican Society of Pediatric Endocrinology developed a clinical practice guide for the diagnosis and treatment of precocious puberty. This document presents recommendations related to the diagnosis of precocious puberty. The detailed description of the methodology for the development of this guide and the grading system, as well as the synthesis of the evidence on which it is based can be accessed in this same supplement., (Copyright: © 2020 Permanyer.)

Three systematic reviews were conducted to formulate the recommendations on diagnosis, treatment and follow-up of patients with precocious puberty: interventions for the treatment of precocious puberty that included the outcomes of final or near-final height, mental health, metabolic health, health bone, or blockade success; comparative observational studies evaluating long-term outcomes in subjects with a history of precocious puberty; and diagnostic test accuracy studies for puberty., (Copyright: © 2020 Permanyer.)

The Mexican Society of Pediatric Endocrinology developed a clinical practice guide for the diagnosis and treatment of precocious puberty. This document presents recommendations related to the monitorization of the treatment and follow-up of patients with central precocious puberty. The detailed description of the methodology for the development of this guide and the grading system, as well as the synthesis of the evidence on which it is based, can be consulted in this same supplement., (Copyright: © 2020 Permanyer.)

The Mexican Society of Pediatric Endocrinology developed a clinical practice guide for the diagnosis and treatment of precocious puberty. This document presents recommendations related to the interventions for the inhibition of central precocious puberty. The detailed description of the methodology for the development of this guide and the grading system, as well as the synthesis of the evidence on which it is based can be consulted in this same supplement., (Copyright: © 2020 Permanyer.)

The Mexican Society of Pediatric Endocrinology developed a clinical practice guide for the diagnosis and treatment of precocious puberty. This document presents recommendations related to the complementary interventions for the treatment of precocious puberty besides puberty blockade. The detailed description of the methodology for the development of this guide and the grading system, as well as the synthesis of the evidence on which it is based, can be consulted in this same supplement., (Copyright: © 2020 Permanyer.)

The Mexican Society of Pediatric Endocrinology developed a clinical practice guide for the diagnosis and treatment of precocious puberty. This document presents recommendations related to the diagnosis of secondary causes of central PP. The detailed description of the methodology for the development of this guide and the grading system, as well as the synthesis of the evidence on which it is based can be consulted in this same supplement., (Copyright: © 2020 Permanyer.)

Introduction: Obesity is a serious public health problem because its association with the risk to develop various chronic diseases. Atherogenic dyslipidemia that often accompany obesity is also associated to the metabolic syndrome and to cardiovascular diseases. The transition from adolescence to young adulthood appears to be a period where major changes occur in the lifestyle which contributes to the development of obesity, however, little attention has been given to this transition stage. The inclination to adopt unhealthy behaviors which occurs during early adulthood may be increased on university students because their lifestyle, which is characterized by lack of time to eat a healthy diet, which can make them susceptible to obesity., Objective: To determine the prevalence of obesity and lipid levels abnormalities and their relationship in a group of university students., Methods: Transversal study of university students aged between 18 and 24 years. Body mass index, waist circumference and blood lipid profile where evaluated., Results: Of the 620 students surveyed about one-third have either overweight or obesity. 86% of students had at least one alteration in the evaluated parameters. Lipid profile results show a high prevalence of minor alterations in levels, particularly in cholesterol linked to low density lipoproteins levels., Conclusions: University young students have a high prevalence of overweight and plasma lipid levels above the norm, but most are in the low-risk categories. It is necessary to establish early preventive measures aimed at promoting in the university student good eating habits and increased physical activity., (Copyright AULA MEDICA EDICIONES 2014. Published by AULA MEDICA. All rights reserved.)