La presente tesis centró su objetivo en determinar si existe relación entre el desempeño docente y el clima organizacional en las especialidades de Mecánico de Mantenimiento, Electricidad Industrial y Mecánico Automotriz de un Centro de Formación Profesional de Huancayo. El tipo de investigación fue básica, de enfoque cuantitativo, metodología deductiva, de nivel correlacional y un diseño no experimental; tipo de muestreo censal, considerando 42 docentes de tres especialidades anteriormente referenciadas. Respecto a la técnica utilizada fue la observación y como instrumento la ficha de observación considerando las capacidades pedagógicas, la autonomía y la estructura, elaborada por los autores. Para la validez de contenido, se siguió el criterio de jueces para lo cual se presentó la definición de cada dimensión y se calificó la pertinencia del ítem de cada uno de ell...

Introducción: La malaria es una enfermedad metaxénica producida por Plasmodium spp. Las especies que causan más daño en salud pública son P. vivax y P. falciparum. Malaria severa se refiere a un cuadro de malaria en presencia de alteraciones de signos físicos y laboratoriales definidos por la OMS. Aunque la malaria severa se ha relacionado tradicionalmente con malaria por P. falciparum, también está asociada a malaria por P. vivax. La prevalencia de malaria severa por P. vivax no ha sido bien estudiada. Por ello, el objetivo de este estudio fue identificar algunos factores epidemiológicos y clínicos asociados a malaria severa en los pacientes con malaria por Plasmodium vivax y Plasmodium falciparum, en la población de la provincia de Maynas entre los años 2014-2019. Métodos: Estudio observacional analítico de tipo transversal. Se revisaron todas las historias clínicas de p...

The objective of this article is to develop some results on conformable fractional derivatives, specifically the one known as Khalil’s conformable fractional derivative. Its origin, properties, comparisons with other fractional derivatives and some applications on population grow and Newton law of cooling models are studied.

Caesarean sections listed above, by improper diagnosis of fetal distress, avoided today, thanks to improved diagnostic judgments.

Caesarean sections listed above, by improper diagnosis of fetal distress, avoided today, thanks to improved diagnostic judgments.

This article presents a rigorous review of the conformable fractional derivative given by J. E. Napoles in [11], studying its classical properties, as a differential operator. Likewise, applications are given to Physics, specifically to the free fall of bodies and Newton’s law of cooling.

Samplings of the Emerita analoga were taken biweekly with traps "cafan" on San Jose beach (Lambayeque-Peru) from March 1996 to November 1997. Cephalotoraxic length (mm) and total weight (0,001 g) was registered and the alimentary canal, gonads, and muscles were analyzed in order to look for parasites. The data were processed comparing statistically March 96 -March 97 (year 96) against those of the April -November 97 (El Niño 1997-98). The following parasites were present during 1996: Eutetrarhynchus (cestod), Polymorphus (acantocephala), Proleptus and Spiruroidea (nematode) and Marytrema (digeneo). During "El Niño 1997 -98" also appeared the cestod Nybelinia and another digeneo. The prevalence for Eutetrarhynchus and the nematodes, was major during "El Niño 1997-98" for both females and males: this same tendency was presented in the analysis 01 the number 01 the parasites/ ind., but d...

Se realizaron muestreos quincenales de Emerita analoga en la playa San José (Lambayeque), de marzo de 1996 a noviembre de 1997. Para la búsqueda de parásitos en E. anafoga se registró previamente su longitud cefalotorácica (mm) y el peso total (0,001 g); y se disectó el tubo digestivo, gónadas y músculo. Los datos fueron procesados estadísticamente comparando los ejemplares de marzo 96 marzo 97 (año 96) con los de abril-noviembre 97 (El Niño 1997-98). Durante 1996 los parásitos: Eutetrarhynchus (céstodo), Polymorphus (acantocéfalo), Proleptus y Spiruroidea (nemátodos) y Marytrema (digeneo) estuvieron presentes. Durante "El Niño 1997-98", además, apareció el céstodo Nybelínía y otro digeneo. La prevalencia fue mayor durante "El Niño 1997-98" para Eutetrarhynchus y los nemátodos, tanto en hembras como en machos; esta misma tendencia se presentó en el análisis de n�...

Emerita analoga, an Anomura marine benthíc crab of the Peruvian coast macrozoobenthos is one of the organisms that the RIBEN monitors to determine the influence of "El Niño" events. Sampling was carried out biweekly in San Jose beach (Lambayeque) from April 1996 to July 1998. Cephalotoraxic length (Lc mm) and total weight (g) was registered. The ovigera mass was weighed, and a portion of 0,05 g was used for eggs and breeding count to estimate fertility and contribution of breeding. The data were processed statistically comparing the individuals of April 96 -March 97 with those of April 97 July 98 ("El Niño 1997-98"). The fertility of ovigera females in stadium Ov-1 range from 983 to 17517 (mean 5782), and from 1100 to 18210 (mean 8534) eggs, for the periods April 96-Mareh 97, and "El Niño", respectively. This significant difference was also evident tor Ov-2; however, in relation to t...

El cangrejo bentónico Emerita analoga (Anomura) de las playas arenosas del Perú, forma parte de los organismos que monitorea la RIBEN para determinar la influencia de los eventos "El Niño". Los muestreos fueron realizados quincenalmente en la playa San José (Lambayeque), de abril de 1996 a julio de 1998. Se registró la longitud cefalotorácica (Lc), el peso total, la masa ovígera fue pesada y una porción de 0,05 g se utilizó en el recuento de huevos y crías para estimar fertilidad y aporte de crías; los datos fueron procesados estadísticamente comparando los ejemplares de abril 96 marzo 97 con los de abril 97 -julio 98 (El Niño 1997-98). La fertilidad de las hembras ovígeras en estadio Ov-1 fue de 983 a 17517 (promedio 5782) Y de 1 100 a 18210 (promedio 8 534} huevos, para los períodos abril 96 -marzo 97 y "El Niño", respectivamente; esta diferencia significativa también ...

Background and aims: Childhood and adolescent obesity is a global public health concern. Obesity induces several metabolic disturbances. Several studies have explored the association of vitamin B12, folate, and homocysteine (Hcy) with obesity. This study aimed to synthesize the available evidence regarding the differences in serum levels of vitamin B12, Hcy, and folate among children or adolescents with and without obesity. Methods: A random-effects meta-analysis using the Sidik-Jonkman method and corrected 95% confidence interval (CI) using the truncated Knapp-Hartung standard errors was used for all meta-analyses. Standardized mean difference (SMD) with the corresponding 95% CI was used as the only effect size. The Cochran’s Q test and the I2 statistic were used to evaluate between-study heterogeneity. Publication bias was assessed using funnel plots and the Egger test. Results: Twen...

Background and aims: Childhood and adolescent obesity is a global public health concern. Obesity induces several metabolic disturbances. Several studies have explored the association of vitamin B12, folate, and homocysteine (Hcy) with obesity. This study aimed to synthesize the available evidence regarding the differences in serum levels of vitamin B12, Hcy, and folate among children or adolescents with and without obesity. Methods: A random-effects meta-analysis using the Sidik-Jonkman method and corrected 95% confidence interval (CI) using the truncated Knapp-Hartung standard errors was used for all meta-analyses. Standardized mean difference (SMD) with the corresponding 95% CI was used as the only effect size. The Cochran’s Q test and the I2 statistic were used to evaluate between-study heterogeneity. Publication bias was assessed using funnel plots and the Egger test. Results: Twen...

Background and aims: The presence of fungal infections has been described in patients after recovering from COVID-19. This study aims to conduct a systematic review of studies that reported fungal infections (Mucor spp., Pneumocystis jirovecii, or Aspergillus spp.) in adults after recovering from COVID-19. Methods: We performed a systematic review through PubMed, Web of Science, OVID-Medline, Embase, and Scopus. The study selection process was performed independently and by at least two authors. We performed a risk of bias assessment using the Newcastle–Ottawa Scale for cohort and case–control studies, and the Joanna Briggs Institute’s Checklists for Case Series and Case Reports. Results: The systematic search found 33 studies meeting all inclusion criteria. There was a total population of 774 participants, ranging from 21 to 87 years. From them, 746 developed a fungal infection. I...

Objective: We aimed to review the available evidence on the association between vitamin B12, folate, and homocysteine levels with worse outcomes among COVID-19 patients. Methods: The search was carried out in ten databases simultaneously run on 10 May 2023, without language restrictions. We included cross-sectional, case-control, and cohort studies. The random-effects meta-analysis was performed using the Sidik-Jonkman method and corrected 95% confidence intervals using the truncated Knapp-Hartung standard errors. Standardized mean difference and 95% CI was used as the measure effect size. Results: Thirteen articles were included in this review (n = 2134). Patients with COVID-19 who did not survive had the highest serum vitamin B12 values (SMD: 1.05; 95% CI: 0.31–1.78; p = 0.01, I2 = 91.22%). In contrast, low serum folate values were associated with patients with severe COVID-19 (SMD: ...

Background & aims: Apolipoproteins and lipoprotein(a) are associated with various cardiometabolic diseases, including insulin resistance, diabetes mellitus, hypertension, dyslipidemia, among others. This systematic review and meta-analysis was conducted to evaluate the association of these markers with metabolic syndrome (MetS). Methods: We ran a systematic search through PubMed, Scopus, Embase, Ovid/Medline, and Web of Science on March 15, 2023. No language or date restrictions were applied. The only synthesised effect measure reported was the odds ratio (OR) with its corresponding 95% confidence interval (95% CI). We utilised the random-effects model for the quantitative synthesis. Results: We analysed 50 studies (n = 150 519) with different definitions for MetS. Increased ApoB values were associated with MetS (OR = 2.8; 95% CI: 2.44–3.22; p < 0.01, I2 = 99%). Decreased ApoA1 values ...

Background & aims: Asprosin is a promising candidate for novel treatments for metabolic–endocrine disorders. The objective of this systematic review and meta-analysis was to consolidate the existing evidence regarding asprosin levels in patients diagnosed with type 2 diabetes (T2D), metabolic syndrome (MetS), and obesity. Methods: Scopus, Embase, PubMed, Ovid/Medline, and Web of Science were systematically searched without restrictions. We only used the standardized mean differences (SMD) with their 95 % confidence intervals (95 % CI) as the effect measure. A random-effects model (DerSimonian and Laird method) was used for the meta-analysis. Risk of bias was assessed with the Newcastle–Ottawa Scale and Newcastle–Ottawa Scale for Cross-Sectional Studies. Results: Twenty-six studies (n = 3,787) were included in the meta-analysis. Participants with T2D had higher asprosin values than ...

Introduction: The current study aimed to quantitatively synthesize available evidence regarding the seroprevalence of human toxocariasis in Latin America and the Caribbean. Methods: A systematic research involving six electronic databases was conducted using a research strategy that combined MeSH terms with free terms. Article selection and information extraction were performed using a double and independent approach. The Newcastle-Ottawa tool was used to assess the risk of bias in the included articles. The meta-analysis used the random-effects approach, with subgroup analysis and sensitivity analysis for risk of bias also being performed. Results: We included 101 articles with a total of 31,123 participants. The studies were conducted between 1990 and 2022, with Brazil accounting for the largest number of studies (n = 37). The overall seroprevalence of human toxocariasis was 31.0% (95%...

Fibrinogen-to-albumin ratio (FAR) and blood urea nitrogen-to-albumin ratio (BAR) are inflammatory biomarkers that have been associated with clinical outcomes of multiple diseases. The objective of this study is to evaluate the association of these biomarkers with the severity and mortality of COVID-19 patients. A systematic search was performed in five databases. Observational studies that reported the association between FAR and BAR values with the severity and mortality of COVID-19 patients were included. Random-effects models were used for meta-analyses, and effects were expressed as Odds Ratio (OR) and their 95% confidence intervals (CI). Publication bias was assessed using the Begg test, while the quality assessment was assessed using the Newcastle Ottawa Scale. A total of 21 studies (n = 7949) were included. High FAR values were associated with a higher risk of severity (OR: 2.41; ...

Introduction: Avian influenza A H5N1 is a significant global public health threat. Although relevant, systematic reviews about its prevalence in animals are lacking. Methods: We performed a systematic literature review in bibliographic databases to assess the prevalence of H5N1 in animals. A meta-analysis with a random-effects model was performed to calculate the pooled prevalence and 95 % confidence intervals (95%CI). In addition, measures of heterogeneity (Cochran's Q statistic and I2 test) were reported. Results: The literature search yielded 1359 articles, of which 33 studies were fully valid for analysis, including 96,909 animals. The pooled prevalence for H5N1 in birds (n = 90,045, 24 studies) was 5.0 % (95%CI: 4.0–6.0 %; I2 = 99.21); in pigs (n = 3,178, 4 studies) was 1.0 % (95%CI: 0.0–1.0 %); in cats (n = 2,911, 4 studies) was 0.0 % (95%CI: 0.0–1.0 %); and in dogs (n = 479,...