bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dental setup in the covid-ified era – A review
Authors: Asok Nikhil , Srivastava Vipul , Tandon Ragni , Mahajan Shally , Sonal  
Published: October 2020

The infectious agent of this viral pneumonia happening in Wuhan was finally identified as a novel coronavirus (2019-nCOV), the 7 member of the family of coronaviruses that infect humans widely known as Covid-19. The common transmission routes of novel coronavirus include direct transmission like cough, sneeze, and droplet inhalation transmission and contact transmission contact with oral, nasal, and eye mucous membranes. Live viruses (COVID-19) were isolated from the saliva. Hence, healthcare workers particularly the dental professionals are at more risk.An overview of how-to setup the dental office so as to minimize the risk of transmission while simultaneously carrying out the necessary treatment procedures.A proper management and setup of the dental office and treatment planning along with strict categorisation of patients is necessary for a successful and safe practice during Covid times.
Bases astronómicas para una nueva correlación entre los calendarios maya y cristiano
Authors: Smiley Charles H. 
Published: October 2020

Se ha presentado una nueva correlación entre los calendarios maya y cristiano en dos recientes artículos. De acuerdo con ellos, el día juliano que corresponde a la fecha cero de la cuenta larga maya, es 482,699; esto se comparará después con los valores correspondientes de otras correlaciones anteriores. Aquí se presentarán las bases astronómicas en que se apoya la nueva correlación. el orden de presentación se ha escogido para indicar los pasos seguidos para llegar a esta correlación.
Cultural Ecology of the Maya Lowlands [Part II]
Authors: Sanders William T. 
Published: October 2020

Hemos afirmado anteriormente que la agricultura de tala y quema tiende a producir un patrón de dispersión de la población rural. En términos de conveniencia simple, por supuesto, es siempre ventajoso para cualquier población rural, con independencia del sistema de la agricultura, residir en un asentamiento con el patrón de ranchería. Hemos notado que la población moderna en Tabasco sigue este patrón de asentamiento.
Distribución cronológica de algunos tipos de artefactos en Altar de Sacrificios, Guatemala
Authors: Willey Gordon R. 
Published: October 2020

Aparte de la cerámi ca y de las figurillas, nunca han recibido mucha atención los otros tipos de artefactos mayas, especialmente en su aspecto como indicadores de periodos o de horizontes. El estudio de A. V. Kidder (1947) sobre los artefactos de Uaxactun es una excepción, y la monografía de W. R. Coe (1959) en que hace una descripción y comparación del material de Piedras Negras, es otra, aunque con dicho material no se podía obtener mucha clasificación cronológica. Háttula Moholy-Nagy esta trabajando actualmente con gran cantidad de materiales de Tikal que nos darán una idea mucho mejor de como, a través de la larga secuencia de ese lugar, aparecen, persisten o mueren determinadas formas; y mi propio estudio de los artefactos de Barton Ramie (Willey y otros, 1965) también goza de una larga secuencia cronológica. Dentro de pocos años la topología de los artefactos de las tierras bajas mayas seguramente será más sistematizada y empezaremos a apreciar el valor cronológico de varias de estas herramientas y objetos. Altar de Sacrificios será un punto más de información sobre este desarrollo, con su material de artefactos obtenidos en las excavaciones que allí se realizan.
Ralph Loveland Roys, 1879-1965
Authors: Thompson J. Eric S. 
Published: October 2020

Ralph Roys, de la estirpe de la vieja Nueva Inglaterra por ambos lados, nació en Greesnville, Michigan, el 14 de febrero de 1879. Creció en un ambiente intelectual: su padre (negociante en madera) era ferviente estudiante de historia, y su madre fue una de las alumnas con las que le Colegio de Vassar inició sus cursos. Su interés por Mesoamérica se remonta ciertamente a sus días de Secundaria, según ha confirmado su hermano Lawrence, quien, al proporcionarnos los datos sobre su juventud, recuerda que entonces le explicó las complicaciones del calendario azteca.
Algunas cuestiones relativas al nacimiento de la primitiva sociedad de clases entre los antiguos mayas
Authors: Guliayev Valeri I. 
Published: October 2020

En el momento de la conquista española las tribus del grupo lingüístico maya se extendían por una vasta región que incluía los actuales estados meridionales de Tabasco, Chiapas, Yucatán, Campeche y el territorio de Quintana Roo en México; toda Guatemala, Honduras Británica y las regiones occidentales de El Salvador y Honduras. A juzgar por los datos arqueológicos, los límites señalados coinciden más o menos con la propagación de la cultura maya en la época anterior, conocida como la época Clásica (primer milenio de nuestra era), que es cuando surgen ahí las primeras ciudades-estados y sus características es una de las cuestiones más arduas y más complejas de la antigua historia del Nuevo Mundo. Además de la complejidad del problema en sí, el estudio se dificulta por la escasez de documentos. Desgraciadamente las crónicas españolas e indígenas con respecto a los acontecimientos históricos anteriores al siglo X. Ni las numerosas inscripciones jeroglíficas, ni los textos hallados entre las ruinas de las ciudades mayas han sido descifrados en su totalidad hasta el presente. Por tanto en lo que se refiere al periodo Clásico sólo disponemos de las fuentes arqueológicas; si bien no queda excluida la posibilidad de utilizar los documentos históricos posteriores y los datos proporcionados por la etnografía con el fin de lograr reconstrucciones retrospectivas.
SIMBOLISMO DEL JUEGO DE PELOTA EN EL POPOL VUH
Authors: Federico Teresa 
Published: October 2020

El pueblo quiche, grupo mayance del altiplano guatemalteco, nos ha legado un importante documento de contenido mítico, el Popol Vuh, relato que trata de las ideas cosmogónicas de los quiches, sus antiguas tradiciones, la historia de sus orígenes y la cronología de sus reyes hasta el año de 1550. Sc escribió en lengua nativa a rafz de Ia Conquista, utilizando caracteres latinos, y se cree que su autor fue un indio quiche perteneciente a la nobleza. El Popol Vuh está dividido en dos partes: Ia primera es 1a mirica y la segunda la hiscórica. En este trabajo nos referiremos a Ia primera parte por conrener la tradición relacionada con el juego de pelota.
GOBIERNOS INDIOS "TRADICIONALES" EN LOS ALTOS DE CHIAPAS
Authors: Prokosch Eric 
Published: October 2020

Lacinoamerica, con sus mas de cuatrodentos afi.os de historia después de la conquista, es un campo fertil para los antropólogos que se interesen en la reconstrucción de la historia. Donde hay gran diversidad actualmente en areas donde se podda esperar uniformidad, la reconstrucción de la historia bien puede ser el mejor mecodo de plicarlo. Durante el periodo colonial, los espafi.oles inscituyeron ayuntamientos elegidos anualmente, coosistiendo en indios, como cuerpos gobemantes en las comunidades indias. Un ayuntamiento consistía tipicamente en un alcalde con regidores. En algunas comunidades al jefe hereditario, o cacique, cambien se le daba poder, algunas veces bajo el titulo de gobernador. Habfa tambien tales puestos como sfndico, escribano, alguacil, y principal ( termino que podia referirse a ambos, a indios generalmente de reconocido estado noble y a los funcionarios encargados de un barrio o subdivisión de un pueblo; Haring 1963:150-1, 162; Roys 1943:132n., 134-7; Aguirre Beltran 1953:28 y siguientes).
ALFONSO CASO ANDRADE (1896-1970)
Authors: Ruz Lhuillier Alberto 
Published: October 2020

Al iniciarse en 1960 las actividades del entonces Seminario de Cultura Maya y publicarse el primer volumen de Estudios de Cultura Maya designamos como uno de nuestros Consejeros Honorarios, al doctor Alfonso Caso. No se trataba de un mayista, pero para nosotros era una forma simbólica de colocarnos bajo el amparo moral de quien marc6 nuestro destino profesional, el que a su vez había de condicionar nuestra vida desde hace 34 años. Como estudiante de la primera generación de la Escuela Nacional de Antropología, a fines del año de 1938, tuve la suerte de realizar mi primera practica de campo en Monte Alban, como ayudante de Allonso Caso. Hasta ese momento no había aún decidido si orientaría mis estudios hacia la etnografía, la lingüística, la antropología física o la arqueología, después de un primer año de la carrera en que sólo se tomaban cursos generales sobre las distintas especialidades de la antropología. Las semanas transcurridas en Monte Alban, en la exploración de un pequeño complejo arquitectónico, a la vez ceremonial y funerario, al lado de Caso, fueron decisivas para mí: sería arqueólogo.
KOMPOSISI SENYAWA FENOL DAN POTENSI ANTIOKSIDAN DARI KACANG-KACANGAN: REVIEW
Authors: Diniyah Nurud , Lee Sang-Han 
Published: October 2020

Legumes are good dietary source of bioactive phenolic compounds which play significant roles in many physiological as well as metabolic processes. Flavonoids, phenolic acids and condensed tannins are the main phenolic compounds that are provide in legume seeds. Majority of the phenolic compounds are serving in the legume seed coats. The majority of seed coat of legume seeds are phenolic acids and flavonoids (mainly catechins and procyanidins). Gallic and protocatechuic acids are common in kidney bean and mung bean. Almost 70% of total phenolic compounds in lentils and cranberry beans (seed coat) are catechins and procyanidins. The antioxidant activity of phenolic compounds is in lineal intercourse with their chemical structures such as number as well as position of the hydroxyl groups. Processing mostly conducts to the alleviation of phenolic compounds in legumes because of chemical rearrangements. Phenolic content also lessen due to leaching of water-soluble phenolic compounds into the cooking water. This review provides comprehensive information of phenolic compounds identified in grain legume seeds along with discussing their antioxidant.
Keywords: antioxidant activity, legume seeds, phenolic compounds, processing
The prognostic significance of inflammation-based scores in patients with ampullary carcinoma after pancreaticoduodenectomy
Authors: Sun Shuxin , He Chaobin , Wang Jun , Huang Xin , Wu Jiali , Li Shengping 
Published: October 2020

Abstract
Background: Growing evidence indicates that the systemic inflammatory response plays an important role in cancer development and progression. Several inflammatory markers have been reported to be associated with clinical outcomes in patients with various types of cancer. This study was designed to evaluate the prognostic value of inflammatory indexes in patients with ampullary cancer (AC) who underwent pancreaticoduodenectomy (PD).Methods:We retrospectively reviewed the data of 358 patients with AC who underwent PD between 2009 and 2018. R software was used to compare the area under the time-dependent receiver operating characteristic (ROC) curves (AUROCs) of the inflammation-based indexes, including the neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), modified Glasgow Prognostic Score (mGPS), prognostic nutritional index (PNI) and prognostic index (PI), in terms of their predictive value for survival. The survival differences of these indexes were compared by the Kaplan-Meier method and univariate and multivariate analyses were performed to determine the prognostic factors of disease-free survival (DFS) and overall survival (OS).Results:The estimated 1-, 2-, and 3-year OS and DFS rates were 83.9%, 65.8%, and 55.2% and 58.0%, 42.8%, and 37.8%, respectively, for the entire cohort. The survival differences were significant in terms of OS and DFS when patients were stratified by these inflammation-based indexes. The comparisons of the AUROCs of these inflammation-based indexes illustrated that NLR and PI displayed the highest prognostic value, compared to the other indexes. When NLR and PI were combined, NLR-PI showed even higher AUROC values and was identified as a significant prognostic factor for OS and DFS.Conclusion:Specific inflammatory indexes, such as NLR, PLR and dNLR, were found to be able to predict the OS or DFS of patients. As a novel inflammatory index, the level of NLR-PI, which can be regarded as a more useful prognostic index, exhibited strong predictive power for predicting the prognosis of patients with AC after the PD procedure.
Malaria Outbreak –in Hitsats Refugee Camp, Tigray Region, Ethiopia- 2017, A Case-Control Study
Authors: Gebremichael Mekonen Gebrekidan , Aregay Samuel Gebresilassie , Tesfay Kissanet Wedearegay , Kebede Getahun Embaye , Adissu Alefech Gezihagn 
Published: October 2020

Abstract
Background: Over 80% of current refugee camps worldwide are located in malaria-endemic areas and malaria accounts for up to 50% of all deaths among refugees. In 2016, 3,152 malaria cases were reported from Hitsats Refugee Camp located in northern Ethiopia. A malaria outbreak was reported from Hitsats Refugee Camp (Population=8498) on June 19th, 2017. We investigated to describe the epidemiology, identify risk factors, and implement control measures.Methods: We defined a malaria case as any person a resident of Hitsats Refugee camp with fever or fever with headache, rigor, back pain, chills, sweats, myalgia, nausea, and vomiting, or confirmed microscopically or by Rapid Diagnostic Test to have malaria parasites from June 6th to July 3rd, 2017. We identified cases by reviewing the refugee clinic records and conducted a 1:1 case-control study from July 3rd to 14th, 2017. Cases were selected randomly using the patient registration book and recruited neighborhood controls who have no signs and symptoms of malaria and tested negative for Plasmodium species during the outbreak period from the same camp. We collected socio-demographic, behavioral, and risk factor information using a pre-tested structured questionnaire. Data were entered and analyzed using Epi-Info version 7.2.2. Multivariable logistic regression analysis was conducted to identify independent factors associated with malaria infection. Result: We identified 4,911 malaria cases with no death. Of those cases, 3,290 (67%) were males, and 4,322 (88%) were aged ≥5years. The overall attack rate (AR) was 58% (4911/8498) and was highest among <5years (84%) and was 55% among people ≥5years. Seventy-eight malaria cases and 78 controls were interviewed. The presence of patient/s with similar signs and symptoms at home (Adjusted Odds Ratio (AOR) =3.5, 95% Confidence Interval (CI) =1.6-7.8) was an independent risk factor associated with malaria. Owning insecticide-treated mosquito nets (ITNs) (AOR=0.17; 95%CI=0.07-0.4) and using personal protective equipment (PPE) to prevent mosquito bites when staying outdoors (AOR=0.18; 95%CI=0.08-0.4) were disease protective factors.Conclusion: The presence of patient/s with similar signs and symptoms at home, lack of ITN ownership and not using PPE were variables associated with malaria infection. Prevention strategies that target ITN distribution and the use of PPE to prevent mosquito bites may mitigate and prevent further outbreaks of malaria in refugee camps.
Strategies for the preservation of service levels in the inventory management during COVID-19.&nbsp;A Case study in a company of biosafety products.
Authors: Vergara Ileana Gloria Pérez , Gómez María Camila López , Martínez Igor Lopes , Hernández Jesús Vargas 
Published: October 2020

Abstract
The current global situation due to the COVID-19 illness has seriously impacted the capacity of the supply chains to accomplish timely and in a reliable way the availability of essential biosafety products. Production and trading companies of biosafety products have experienced an unpredicted change in the product demand. This is due to the protocol international regulations from health organizations regarding the use of biosafety products and their use to mitigate the virus propagation. For the companies involved in these supply chains, their priority is to keep appropriate service levels in the current scenario, guaranteeing high availability at each echelon to help life´s preservation. It requires to maintain articulation and flexibilization of the processes in the supply chain, reflected in the decision making. In this world with high volatility, uncertainty, complexity, and ambiguity (VUCA), where the traditional practices are no longer effective, rationality, people´s training, and the experience for the decision-making are essential.Nevertheless, despite the relevance of the problem, studies about business strategies of multiple product inventories and their impact on the service level and volatile demand during a pandemic is limited. This paper focuses on the experience of a Colombian Company of biosafety products. The key contribution of this proposal leads to some important insights for biosafety companies managing many highly demanded products, volatile behaviour, and very important items for containing the spread of a virus in a complex and dynamic market influenced by a global disruption of supply chains, in this case the COVID-19 pandemic.
Implementación de NTS-TS 002 y su Adaptación a Pequeños y Medianos Hoteles, Caso Mola Hostel
Authors: Castillo Tambo Nicolas Steven , Chiquiza Laura Escobar , Ruiz Martínez Lida Esperanza 
Published: October 2020

La industria hotelera es uno de los sectores más importantes a nivel internacional, debido a que contribuye al crecimiento económico de cada país, siendo también uno de los sectores que genera un impacto ambiental considerable, dado al consumo y aprovechamiento de los recursos naturales para la operación de los mismos. Para mitigar estos impactos existen normas a nivel mundial como la Green Globe 21, Green Key, ISO 14001 y en el caso de Colombia la NTS-TS002, la cual presenta una disparidad por su aplicación a grandes hoteles excluyendo a los de menor tamaño. Por esta razón, el presente artículo busca analizar los lineamientos metodológicos de la norma técnica sectorial NTS-TS002 en el establecimiento hotelero Mola Hostel, mediante la implementación y aplicación de herramientas como la autoevaluación, recolección de información primaria y secundaria, formulación y aplicación de programas sostenibles, eco balances, análisis de encuestas en la escala de Likert, que permiten identificar las principales dificultades para la aplicación de la norma técnica en los pequeños y medianos hoteles y reflejan como los esfuerzos en la adaptabilidad, consigue una mitigación de impactos ambientales significativa, reduciendo el consumo de energía, agua y residuos dentro del establecimiento hotelero objeto de estudio.
Application of artificial neural network for predicting water levels in Hooghly estuary, India
Authors: Bhar Kalyan Kumar , Bakshi Susmita 
Published: October 2020

Abstract
Hydrodynamic models for morphodynamic studies in estuaries require continuous tidal water level data as boundary conditions. However, for the Hooghly estuary in India, measurement of continuous tidal water elevation data at the most downstream point is a very difficult task because of the remote location and the confluence with the deep sea. The tidal water level data at this station are measured for a half tidal cycle which is not useful for hydrodynamic modeling. However, at other upstream stations, tide water level data are measured continuously. Accordingly, in this study, an attempt is made to generate continuous tidal water level data at the remote station, using the data of the neighboring stations as input to an artificial neural network (ANN) model. A three-layered feed-forward backpropagation (FFBP) network with two hidden layers is selected and five different combinations of input vectors are used. Simulated water level data obtained from each model are compared with the observed data graphically as well as by estimating the standard error parameters. The best model suitable for prediction of continuous tidal elevation during any time of the tidal cycle and applicable throughout the year is then identified. It is found that tidal data from the nearest neighboring station are more suitable for training.
Groundwater chemistry and health risks associated with nitrate intake in Hailun, northeast China
Authors: Hui Tian , Qifa Sun , Zhuang Kang , Xuguang Li , Jizhong Du , Hongtao Jin 
Published: October 2020

Abstract
In order to quantify the hydrochemical characteristics of groundwater in Hailun, analyze the hydrochemical process, and evaluate its health risks associated with nitrate intake, 77 shallow groundwater samples were collected and analyzed. The results show that groundwater in the study area is weakly acidic and groundwater chemical type was dominated by HCO3-Ca, HCO3•Cl-Ca, HCO3-Ca•Na and HCO3•Cl-Ca•Na. Rock weathering and dissolution, ion exchange, and human activities are the main reasons affecting the chemical composition of shallow groundwater in Hailun. The weathering and dissolution process of silicate under weakly alkaline conditions is the source of Na. The dissolution of calcite, dolomite, and gypsum are the main form of water–rock interaction. Results of health risk assessment show that the HQ value for adult males, adult females, children, and infants were in range of 0–1.52, 0–1.75, 0–3.58 and 0–6.08, respectively, and with a mean value of 0.19, 0.22, 0.44, 0.75, respectively. The harm of NO3 pollution is in the order of infant &gt; child &gt; adult female &gt; adult male. The results of this study made local governments pay attention to drinking water safety issues for local residents.
Photocatalytic degradation of paracetamol using aluminosilicate supported TiO2
Authors: Jayasree Pyla , Remya Neelancherry 
Published: October 2020

Abstract
The continuous growth of the pharmaceutical drug industry has escalated the problem of pharmaceutical waste disposal, and subsequent contamination of aquatic bodies. Paracetamol is one of the most prescribed and purchased drugs that has been widely detected in wastewater and surface water. The present study investigated paracetamol degradation by photocatalytic treatment in a batch system using TiO2 supported on aluminosilicate recovered from waste LED panel (ATiO2). The prepared ATiO2 catalyst was characterized for morphology, elemental composition and crystallinity using scanning electron microscope (SEM) with electron dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD), respectively. ATiO2 was spherical in morphology with a predominance of the anatase phase of TiO2 and an average size of ∼15 nm. Subsequently, the effects of operating parameters, viz., initial paracetamol concentration (1–10 mg/L), catalyst dosage (0.5–4.0 g/L) and pH (4–10) on paracetamol degradation were investigated using central composite design (CCD). A polynomial model was developed to interpret the linear and interactive effect of operating parameters on the paracetamol degradation efficiency. About 99% degradation efficiency of paracetamol was obtained at optimum conditions (Initial paracetamol concentration ∼2.74 mg/L, ATiO2 dosage ∼2.71 g/L and pH ∼ 9.5). The mechanism of paracetamol degradation was adsorption on aluminosilicate and subsequent degradation by TiO2. ATiO2 could be effectively reused up to 3 cycles, with &lt;5% decrease in the degradation efficiency.