Estrategia competitiva y satisfacción del cliente en la tienda Marathon Chimbote 2018

La presente investigación tuvo como objetivo general determinar la relación entre la estrategia competitiva y la satisfacción del cliente en la tienda Marathon Chimbote 2018. La población para este estudio estuvo conformada por 200 clientes, a quienes se les realizó una encuesta para recolectar los datos que fueron procesados en el paquete SPSS, en donde se encontró que el coeficiente de correlación Rho de Spearman fue de 0.735, resultado que permitió concluir que la estrategia competitiva se relaciona de forma positiva y moderada con la satisfacción del cliente, asimismo, el nivel de significancia fue de 0.000 por lo que se rechaza Ho y se acepta Hi: La estrategia competitiva se relaciona con la satisfacción del cliente en la tienda Marathon Chimbote 2018; además que el 55% de los clientes opinó que se encuentra algo en desacuerdo con las estrategias competitivas implementadas en Marathon; que, respecto a la satisfacción del cliente, el 51% de los clientes opinó estar insatisfecho; y que las dimensiones de especialización se relaciona positiva y moderadamente con la satisfacción del cliente, pues el coeficiente de correlación Rho de Spearman fue de 0.558; también que la dimensión identificación de la marca se relaciona positiva y moderadamente con la satisfacción del cliente, pues el coeficiente de correlación Rho de Spearman fue de 0.656; también que la dimensión servicio se relaciona positiva y moderadamente con la satisfacción del cliente, pues el coeficiente de correlación Rho de Spearman fue de 0.551; y que la dimensión política de precios se relaciona positiva y moderadamente con la satisfacción del cliente, pues se obtuvo un coeficiente de correlación Rho de Spearman de 0.548

Automatización robótica de procesos basado en microservicios para mejorar el proceso de riego en la siembra de quinua de Trujillo

La presente investigación tuvo como objetivo general, mejorar el proceso de riego en siembra de quinua en la ciudad de Trujillo, con la implementación de un RPA (automatización robótica de procesos) basado en microservicios. El tipo de investigación fue aplicada, con un diseño experimental de grado pre-experimental. La población en estudio estuvo conformada por 1 granja, la cual se consideró como una muestra de 1 chacra, donde se sembró previamente quinua blanca. Se usó instrumentos de recolección de datos como la ficha de recolección de datos, estas mismas fueron validadas por juicio de expertos, y para su confiabilidad, se aplicó la V de Aiken, el cual se consideró de un nivel aceptable y fiable. Para el desarrollo del producto software, se utilizó la metodología, Twelve Factor App cuyos niveles que son 12: I. Código base (Codebase), II. Dependencias, III. Configuraciones, IV. Backing Services, V. Construir, desplegar, ejecutar, VI. Procesos, VII. Asignación de puertos, VIII. Concurrencia, IX. Desechabilidad, X. Paridad en desarrollo y producción, XI. Historiales, XII. Administración de procesos, después de la implementación se obtuvieron los siguientes resultados. Para el indicador nivel de humedad en la siembra de quinua el cual recibió un aumento de 18% de humedad debido al constante riego. Para el indicador nivel de pH en la siembra de quinua, el cual evidencio una disminución de 6 pH en el agua debido al filtrado de agua. Para el indicador del desperdicio de agua, el cual evidencio una disminución de 113 litros de agua desperdiciada en la siembra de quinua. Para el indicador del tiempo promedio de agua, el cual evidencio una disminución de 0,02 horas/día de tiempo promedio de riego. Esta investigación se divide en: introducción, marco teórico, metodología, resultados. Se concluye que con la implementación de la automatización robótica basada en microservicios se mejoró significativamente el proceso de riego en la siembra de quinoa

Terapia familiar sistémica en contextos de pobreza

Sin duda alguna, un par de páginas se han de quedar cortas a la hora de desglosar un poco sobre aquellos enfoques direccionados hacia el ser humano, desde lo individual, hasta su interacción en grupo y sociedad. Aun así, el presente artículo permite dar unamirada estructural y básica de lo que conlleva a la mención del concepto de Terapia Familiar Sistémica, en éste caso desarrollada en contextos de pobreza, básicamente en América Latina, y más específicamente en Colombia. A través de una contextualización estructurada de términos, ubicados en la raíz del tema principal, se pretende hacer un recorrido que vaya desde lo más sencillo, hasta lo más elaborado, para finalmente impregnar al lector, de una forma más clara y globalizada, de la ubicación y el universo que se constituye alrededor de la Terapia Familiar Sistémica, en los contextos de pobreza; su constitución, fundamento e importancia en nuestra sociedad

Invarianza factorial del Maslach Burnout Inventory Student Survey (MBI-SS) en estudiantes universitarios chilenos y españoles

Introducción: El Maslach Burnout Inventory-Student Survey (MBI SS) es uno de los instrumentos más reconocidos a nivel mundial para evaluar el burnout en población estudiantil. Objetivo: Estimar las propiedades psicométricas del Maslach Burnout Inventory Student Survey (MBI-SS) en estudiantes universitarios chilenos y españoles. Método: Se efectuó un estudio instrumental en una muestra no probabilística por cuotas en 103 estudiantes universitarios chilenos y 104 estudiantes españoles. Se realizó un análisis factorial confirmatorio, se analizó la confiabilidad del instrumento y su invarianza factorial para la muestra española y chilena. Resultados: Los resultados confirman su estructura factorial de tres factores y muestran que el instrumento presenta una adecuada confiabilidad y una invarianza factorial en su versión propuesta de 12 ítems. Discusión: Se concluye que este instrumento y sus propiedades psicométricas permiten evaluar el burnout académico en estudiantes chilenos y españoles

State of the climate in 2018

In 2018, the dominant greenhouse gases released into Earth’s atmosphere—carbon dioxide, methane, and nitrous oxide—continued their increase. The annual global average carbon dioxide concentration at Earth’s surface was 407.4 ± 0.1 ppm, the highest in the modern instrumental record and in ice core records dating back 800 000 years. Combined, greenhouse gases and several halogenated gases contribute just over 3 W m−2 to radiative forcing and represent a nearly 43% increase since 1990. Carbon dioxide is responsible for about 65% of this radiative forcing. With a weak La Niña in early 2018 transitioning to a weak El Niño by the year’s end, the global surface (land and ocean) temperature was the fourth highest on record, with only 2015 through 2017 being warmer. Several European countries reported record high annual temperatures. There were also more high, and fewer low, temperature extremes than in nearly all of the 68-year extremes record. Madagascar recorded a record daily temperature of 40.5°C in Morondava in March, while South Korea set its record high of 41.0°C in August in Hongcheon. Nawabshah, Pakistan, recorded its highest temperature of 50.2°C, which may be a new daily world record for April. Globally, the annual lower troposphere temperature was third to seventh highest, depending on the dataset analyzed. The lower stratospheric temperature was approximately fifth lowest. The 2018 Arctic land surface temperature was 1.2°C above the 1981–2010 average, tying for third highest in the 118-year record, following 2016 and 2017. June’s Arctic snow cover extent was almost half of what it was 35 years ago. Across Greenland, however, regional summer temperatures were generally below or near average. Additionally, a satellite survey of 47 glaciers in Greenland indicated a net increase in area for the first time since records began in 1999. Increasing permafrost temperatures were reported at most observation sites in the Arctic, with the overall increase of 0.1°–0.2°C between 2017 and 2018 being comparable to the highest rate of warming ever observed in the region. On 17 March, Arctic sea ice extent marked the second smallest annual maximum in the 38-year record, larger than only 2017. The minimum extent in 2018 was reached on 19 September and again on 23 September, tying 2008 and 2010 for the sixth lowest extent on record. The 23 September date tied 1997 as the latest sea ice minimum date on record. First-year ice now dominates the ice cover, comprising 77% of the March 2018 ice pack compared to 55% during the 1980s. Because thinner, younger ice is more vulnerable to melting out in summer, this shift in sea ice age has contributed to the decreasing trend in minimum ice extent. Regionally, Bering Sea ice extent was at record lows for almost the entire 2017/18 ice season. For the Antarctic continent as a whole, 2018 was warmer than average. On the highest points of the Antarctic Plateau, the automatic weather station Relay (74°S) broke or tied six monthly temperature records throughout the year, with August breaking its record by nearly 8°C. However, cool conditions in the western Bellingshausen Sea and Amundsen Sea sector contributed to a low melt season overall for 2017/18. High SSTs contributed to low summer sea ice extent in the Ross and Weddell Seas in 2018, underpinning the second lowest Antarctic summer minimum sea ice extent on record. Despite conducive conditions for its formation, the ozone hole at its maximum extent in September was near the 2000–18 mean, likely due to an ongoing slow decline in stratospheric chlorine monoxide concentration. Across the oceans, globally averaged SST decreased slightly since the record El Niño year of 2016 but was still far above the climatological mean. On average, SST is increasing at a rate of 0.10° ± 0.01°C decade−1 since 1950. The warming appeared largest in the tropical Indian Ocean and smallest in the North Pacific. The deeper ocean continues to warm year after year. For the seventh consecutive year, global annual mean sea level became the highest in the 26-year record, rising to 81 mm above the 1993 average. As anticipated in a warming climate, the hydrological cycle over the ocean is accelerating: dry regions are becoming drier and wet regions rainier. Closer to the equator, 95 named tropical storms were observed during 2018, well above the 1981–2010 average of 82. Eleven tropical cyclones reached Saffir–Simpson scale Category 5 intensity. North Atlantic Major Hurricane Michael’s landfall intensity of 140 kt was the fourth strongest for any continental U.S. hurricane landfall in the 168-year record. Michael caused more than 30 fatalities and $25 billion (U.S. dollars) in damages. In the western North Pacific, Super Typhoon Mangkhut led to 160 fatalities and$6 billion (U.S. dollars) in damages across the Philippines, Hong Kong, Macau, mainland China, Guam, and the Northern Mariana Islands. Tropical Storm Son-Tinh was responsible for 170 fatalities in Vietnam and Laos. Nearly all the islands of Micronesia experienced at least moderate impacts from various tropical cyclones. Across land, many areas around the globe received copious precipitation, notable at different time scales. Rodrigues and Réunion Island near southern Africa each reported their third wettest year on record. In Hawaii, 1262 mm precipitation at Waipā Gardens (Kauai) on 14–15 April set a new U.S. record for 24-h precipitation. In Brazil, the city of Belo Horizonte received nearly 75 mm of rain in just 20 minutes, nearly half its monthly average. Globally, fire activity during 2018 was the lowest since the start of the record in 1997, with a combined burned area of about 500 million hectares. This reinforced the long-term downward trend in fire emissions driven by changes in land use in frequently burning savannas. However, wildfires burned 3.5 million hectares across the United States, well above the 2000–10 average of 2.7 million hectares. Combined, U.S. wildfire damages for the 2017 and 2018 wildfire seasons exceeded $40 billion (U.S. dollars)

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Combined searches for the production of supersymmetric top quark partners in proton-proton collisions at root s=13 TeV

A combination of searches for top squark pair production using proton-proton collision data at a center-of-mass energy of 13 TeV at the CERN LHC, corresponding to an integrated luminosity of 137 fb(-1) collected by the CMS experiment, is presented. Signatures with at least 2 jets and large missing transverse momentum are categorized into events with 0, 1, or 2 leptons. New results for regions of parameter space where the kinematical properties of top squark pair production and top quark pair production are very similar are presented. Depending on themodel, the combined result excludes a top squarkmass up to 1325 GeV for amassless neutralino, and a neutralinomass up to 700 GeV for a top squarkmass of 1150 GeV. Top squarks with masses from 145 to 295 GeV, for neutralino masses from 0 to 100 GeV, with a mass difference between the top squark and the neutralino in a window of 30 GeV around the mass of the top quark, are excluded for the first time with CMS data. The results of theses searches are also interpreted in an alternative signal model of dark matter production via a spin-0 mediator in association with a top quark pair. Upper limits are set on the cross section for mediator particle masses of up to 420 GeV

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at root s=13 TeV

Peer reviewe

Observation of tW production in the single-lepton channel in pp collisions at root s=13 TeV

A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at root s = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb(-1) collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant t (t) over bar background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 +/- 4 (stat) +/- 12 (syst) pb, consistent with the standard model.Peer reviewe