bluuebunny/crossref_metadata_2025 huggingface dataset:
Adding an app-based intervention to the Cognitive Behavioral Analysis System of Psychotherapy (CBASP): Concept and Feasibility in a Pilot Routine Clinical Trial (Preprint)
Authors: Netter Anna-Lena , Beintner Ina , Brakemeier Eva-Lotta
Published: January 2022

BACKGROUND

The Cognitive Behavioral Analysis System of Psychotherapy (CBASP), developed specifically for the treatment of persistent depressive disorder (PDD), is an empirically supported treatment. However, given the high rates of non-response and relapse, there is need for optimization. Studies suggest that outcomes can be improved by increasing the treatment dose, e.g., by constant online-based application of therapy strategies between sessions. The highly structured nature of CBASP encourages augmenting it with online interventions, which are of increasing importance for mental health care.

OBJECTIVE

We developed the app-based intervention "CBASPath", which is designed to be used in addition to face-to-face CBASP therapy in terms of blended therapy. CBASPath offers eight sequential modules with interactive exercises to facilitate additional engagement with the therapy content and a separate exercise to conduct situational analyses within the app at any time.

METHODS

CBASPath was tested in an open pilot study as part of routine outpatient CBASP treatment. Participating patients (n=13) were asked to report their usage patterns and blended use (integrated use of app as part of therapy sessions) at three assessment points over the 6-month test period and to rate the usability, quality, and their satisfaction with CBASPath.

RESULTS

Results of the pilot trial show that 12 participants used CBASPath as a blended tool during their therapy and maintained this throughout the study period. Overall, they reported good usability and quality ratings along with high user satisfaction. All participants showed favourable engagement with CBASPath, but with frequency of use differing widely among participants and assessment points. The situational analysis was used by all participants, while the number of completed modules ranged between 1 and 7. All participants reported blended use, although the frequency of integration in face-to-face sessions varied widely.

CONCLUSIONS

Our findings suggest that a digital augmentation of the complex and highly interactive CBASP therapy in the form of blended therapy with CBASPath is feasible in routine outpatient care. Therapeutic guidance might contribute to the high adherence and increase patients’ self-management. Few adjustments within the app could facilitate higher user engagement. A randomized controlled trial to investigate the efficacy and the added value of this blended approach is now needed. In the long term, CBASPath could help optimize PDD treatment and reduce relapse by intensifying therapy and providing long-term patient support through the app.

CLINICALTRIAL

No Registration due to pilot character of the study.
Agenda emergente de género en municipios mexiquenses y COVID-19
Authors: Guadarrama Sánchez Gloria Jovita
Published: January 2022

La irrupción de la pandemia Covid-19 sumió al mundo en diversas crisis con impactos adversos para la vida social, que demandaron de los gobiernos agendas emergentes destinadas a atender los problemas. Este texto presenta un panorama de las formas en que los gobiernos municipales mexiquenses enfrentaron la crisis sanitaria, focalizado en la agenda emergente destinada a atender los problemas de las mujeres. El análisis se apoya en la revisión de los mecanismos que difundieron información, los servicios de apoyo y los mensajes publicados en medios digitales, confirmando la importancia de la comunicación gubernamental.
Antiplasmodial activity and genome mining study of marine-derived Streptomyces sp. GMY01
Authors: Damayanti Ema , Widada Jaka , Dinoto Achmad , Mustofa
Published: January 2022

High resistance to chloroquine in most malaria-endemic area in the world leads to the need for new antimalaria drugs. Marine bacterium Streptomyces  is the source for potential new antimalarial molecules. This research aimed to investigate antiplasmodial activity of marine-derived of Streptomyces sp. GMY01 and to identify potential active compounds using genome mining study. In vitro antiplasmodial activity assays using flow cytometry method showed that the ethyl acetate extract of this bacterium had high antiplasmodial activity (IC50 value of 1.183 µg/mL) on Plasmodium falciparum FCR3. Genome mining analysis of whole-genome sequences using antiSMASH 6.0 beta version revealed that Streptomyces sp. GMY01 had 28 biosynthetic gene clusters (BGCs), including the genes encoding polyketide synthase, non-ribosomal peptide synthetase, terpene, lanthipeptide, bacteriocin, butyrolactone, ectoin, siderophore, and others. The known BGCs were predicted to be involved in the production of known compounds from gene clusters ranged from 5 to 100% similarity. Ongoing purification and elucidation of the structures will allow identification of the active compounds produced by marine-derived Streptomyces sp. GMY01.
Procesos de precarización vir(tu)al en el contexto de la semiopandemia por COVID-19
Authors: Estrada Castro Luis Jaime
Published: January 2022

Los dispositivos de precarización del mundo contemporáneo atraviesan distintas esferas de la vida cotidiana: trabajo, espacio público, relaciones afectivas, seguridad. En el contexto de la pandemia por sars-cov-2, estas formas de precarización muestran sus efectos de forma recrudecida sobre los cuerpos y la psique de las personas. Asimismo, comienzan a gestarse distintas manifestaciones políticas-afectivas para afrontar sus efectos. La política de los afectos a través del deseo como potencia creativa y la profanación como neutralización y desarticulación de los dispositivos de gestión son formas de destitución del poder de la precarización vir(tu)al de esta semiopandemia.

 
Integración conocimiento y entorno: un enfoque contingente de las organizaciones inteligentes
Authors: Marcano Durán María Virginia , Cirera Bianco José Manuel
Published: January 2022

El presente artículo es de naturaleza teórica, en el que se realiza una revisión de la Teoría de la Contingencia, enmarcada en los Estudios Organizacionales. Se estudian dos factores contingentes de la organización, a saber, el conocimiento y el entorno, cuya relación genera el escenario ideal para el desarrollo de la organización en la sociedad del conocimiento. La metodología utilizada para el trabajo de investigación fue un enfoque descriptivo, a través de un análisis documental de los postulados de la Teoría de la Contingencia, desde sus principales exponentes, aunados a los fundamentos de las organizaciones inteligentes. Se concluyó que la Teoría de la Contingencia da cuenta de la vinculación entre la organización y el entorno y revela que la mejor forma de organización en la sociedad del conocimiento es la organización inteligente, por ser orgánica, flexible, innovadora y adaptativa, producto de la gestión del conocimiento como principal activo. La organización inteligente, desarrolla el aprendizaje organizacional para mantener el fit o ajuste entre su desempeño y el entorno, aprendiendo y desaprendiendo de las realidades circundantes y evitando incongruencias con sus modelos y diseños.
La burocracia en México: una breve aproximación desde la teoría de la dominación de Max Weber
Authors: Reyes Adan Irvin Arturo
Published: January 2022

El objetivo general en el presente texto es hacer una breve caracterización de la burocracia mexicana con base en los planteamientos teóricos de Max Weber. En un primer momento, señalo las formas de dominación weberiana deteniéndome en el carácter y funciones de la estructura burocrática, así como las atribuciones que debe adoptar un funcionario público. De forma complementaria, abordo las tesis centrales de Michel Crozier, Joan Subirats y Oscar Oszlak, quienes han problematizado y replanteado la obra de Weber en torno a la burocracia. Luego, expongo someramente los cambios en el sistema político mexicano y el proceso de modernización experimentado por México a lo largo del siglo xx que incidieron en la configuración de un patrimonialismo burocrático. Por último, intento describir algunos rasgos de la burocracia mexicana identificando diferencias y, en su caso, similitudes con el modelo normativo-institucional propuesto por Weber.
Hipótesis de convergencia absoluta en el caso de las entidades federativas de México, 2003-2016
Authors: Solorzano Mendoza Ricardo Alan , Lizarazu Alanez Eddy
Published: January 2022

El presente trabajo tiene por objetivo analizar la hipótesis de convergencia absoluta del ingreso de forma empírica y teórica, para ello se presenta como referente una recapitulación sobre la formalización del modelo de Solow, con él se pretende que se identifiquen las interrelaciones determinantes del estado estacionario, para posteriormente hacer una revisión teórica del fenómeno de convergencia con el objetivo de realizar una investigación empírica utilizando los datos del ingreso per cápita de las entidades federativas de México, lo anterior bajo el análisis descriptivo de la crisis económica de 2008. El artículo se desenvuelve sobre los tres aspectos anteriormente mencionados: la teoría económica sobre la predicción del fenómeno de convergencia, la teoría sobre el fenómeno en sí mismo, y la evidencia empírica usando a la economía de México para el análisis.
Effect of Lemongrass Essential Oil based Mouthwash against Microflora Associated with Dental Plaque
Authors: Ambade Sonia , Deshpande Neelima , Abhyankar Pragati
Published: January 2022

Mouthwash is one of the most convenient and effective method employed for dental plaque management. The aim of the undertaken study was to establish the antimicrobial and anti-biofilm properties of lemongrass essential oil (LGEO) based mouthwash on microbial flora from dental plaque and also check cytotoxicity of mouthwash formulation. Five main colonizers of dental plaque representing dental microflora and three different bacterial species mainly responsible for the formation of biofilm were selected in this study. LGEO based mouthwash was developed and its stability was also determined. The antimicrobial and anti-biofilm activity of LGEO based mouthwash has been evaluated against the representative dental microflora as per CLSI guidelines. Cytotoxicity of mouthwash was checked by globally used MTT assay employing NIH 3T3 mouse fibroblast cell line. The mouthwash has been found to exhibit the stability in its major component, citral and also found exhibit antimicrobial and anti-biofilm activity against dental microflora. No cytotoxic effect was observed on mouse fibroblast cell line. LGEO in formulated mouthwash being a natural, herbal material isolated from traditional medicinal plants appears as a good and effective substitute to control the microflora linked with dental plaque.
The Use of PCR for Respiratory Virus Detection on the Diagnosis and Treatment Decision of Respiratory Tract Infections in Iraq
Authors: Al-hussaniy Hany Akeel , Altalebi Raghid R. , Albu-Rghaif Ali H. , Abdul-Amir Abdul-Ghaffar A.
Published: January 2022

Diseases of the respiratory system are a common cause of antibiotic prescription in Iraq and worldwide. Technology has been recently used for its diagnosis, such as the Film Array Respiratory Panel. This study aims to identify the correlation between the diagnosis and treatment of respiratory tract infections with the result of polymerase chain reaction (PCR) for respiratory viruses. A descriptive, cross-sectional, retrospective study included 134 patients treated at Alkharama Hospital and the Private Hospital in Baghdad, Iraq, in the period from January 2020 to March 2020 For all cases, the results of the panel and the treatment received by the patients were analysed. 58% received antibiotic treatment upon admission, 13% combined treatment (antibiotic + antiviral), 27% received symptomatic treatment, and 2% were treated with the first-instance antiviral. After the result, 38% continued with antibiotics, 30% with antibiotics and antivirals, 13.8% with antivirals and 18.2% with symptomatic treatment. Despite the worldwide alarm over antimicrobial resistance, patients continue to be treated with antibiotics due to a situation that is influenced by several factors.
Attack Taxonomy for Cyber-Physical System
Authors: Dixit Ms. Keerti
Published: January 2022

Abstract: Cyber-physical systems are the systems that combine the physical world with the world of information processing. CPS involves interaction between heterogeneous components that include electronic chips, software systems, sensors and actuators. It makes the CPS vulnerable to attacks. How to deal with the attacks in CPSs has become a research hotspot. In this paper we have study the Architecture of CPS and various security threats at each layer of the archicture of CPS. We have also developed attack taxonomy for CPS. Keywords: Cyber Physical System, Threat, Attack
Terapi kognitif pada permasalahan hubungan sosial
Authors: Utami Lintang Aulia
Published: January 2022

One of the tasks of child development is to establish and build social relationships with friends and their environment. Individuals who have been socially excluded will withdraw by not having relationships with others because of the fear of the negative evaluation feom others. The assessment methods used were interview, observation and psychological tests namely were graphic tests, and the Intelligenz Structure Test (IST). The intervention used to change the subject's negative thoughts to become more positive is cognitive therapy. The cognitive therapy process that was given as many as 6 sessions with the target subject was able to change his negative thoughts into more positive ones. The results of the intervention show that the subject was able to replaces his negative thoughts with positive thoughts which ultimately makes the subject feel no guilt anymore.
Terapi aktivasi perilaku untuk mengurangi perilaku menarik diri pada pasien skizofrenia
Authors: Mahardika Aisyah Putri Rawe
Published: January 2022

Subject in the this study experienced withdrawn behavior that is one of the negative symptoms of schizophrenia. Withdrawing is characterized by decrease in initiative behavior that can create functional impairments in life, work, relationships, social function, and self-care. The intervention used to reduce withdrawn behavior was Behavior Activation Therapy which arranged for nine sessions. The purpose of intervention was to increase daily activities by scheduling activities with monitoring. The results of the intervention showed an increase in the daily activities of the subjects. Subject begins to be able to carry out activities such as bathing, eating, taking regular medication, and cleaning the house. The success of interventions is also supported by family involvement in monitoring the activities and providing support to carry out the intervention well.
Konseling realitas untuk mereduksi stres pada orangtua tunggal
Authors: Indrasari Hanif Kartika
Published: January 2022

The client is a 57 years old woman with complaints of feeling disappointed, irritable, palpitations, chest pain, sweating for no reason that interferes with daily activities. The results of the medical examination did not show any physiological problems. Based on the assessments carried out through interviews, observation, graphic tests, Depression Anxiety Stress Scale (DASS) and WHODAS indicate that the client is experiencing stress. The intervention provided was six sessions of reality counseling. The results of the intervention showed a decrease in stress scores from 25 to 13 on the DASS scale and accompanied by changes in more productive behavior.
Permainan sensori motorik untuk meningkatkan konsentrasi pada anak dengan ADHD
Authors: Rahmatul Azkiya Nur
Published: January 2022

The subject is a child with ADHD disorder with problems of lack of concentration and attention that is easily distracted. This affects performance in school and schoolwork that is not completed. Sensory Motor Play was done to improve the concentration of subjects so that their performance in school becomes better. This intervention uses a wide variety of games so that the subject was not easily bored and involves physical activity. The results of the intervention found that the concentration of the subject increased which was characterized by several completed tasks, showed the behavior of being able to wait in line and be able to control their voice.
Majalah Ahkam Johor: Sumbangannya dalam Perkembangan Islam di Johor pada Akhir Abad ke 19
Authors: Othman Mohd Hafiz , Rozali Ermy Azziaty , Ismail Napisah Karimah
Published: January 2022

The Majallah al-Aḥkām al-‘Adliyyah belongs to the Ottoman Empire has been introduced in Johor, Malaysia during the reign of Sultan Abdul Hamid II (1876-1908). The book was brought to the Johor Government in 1893 during the reign of Johor’s Sultan Abu Bakar (1862-1895) in its Arabic language and it was translated later into Malay language and Jawi script during the reign of Sultan Ibrahim (1895-1959) in 1913. The translation was done by the Mufti of Johor and it is known as the Majalah Ahkam Johor. The book is a legal reference comprises the civil matters of muamalat, for example sale and purchase, rent and hibah, besides of containing court proceedings too. There are previous studies which affirmed that the Majalah Ahkam Johor was rarely used as a reference in court due to the expansion of colonial British in Malaya. The objective of this paper is to discuss and analyse the challenges of the use of the book in Johor and the obstacles in it’s implementation. The methodology of this study is based on qualitative design with historical research approach and document analysis from primary and contemporary data. The findings of this study shows that the use of the Majalah Ahkam Johor at the court level faced obstacles due to the British administration policy of interfering with the state legal and judicial system. Furthermore, the introduction of British law led to the abandonment of the use of Majalah Ahkam Johor as a reference on Islamic matters in Johor.
Can Peer Assessment Impact Self-efficacy During Small-Group Learning?
Authors: Germain Lauren J. , Li Hsin H. , Wiqas Amen , Zahn Lauren , Stewart Telisa M. , Hobart Travis R. , Caruso Brown Amy E.
Published: January 2022

Introduction: While studies report positive correlations between students’ perceptions of the learning environment and their reported self-efficacy, the role of peer assessment is poorly understood in this context. This study examines the process and impact of peer assessment on self-efficacy and perceptions of the learning environment during a small-group discussion-based course required of first-year medical students.
Methods: After spending time in small-group learning, students completed three peer assessments and reviewed three assessments of themselves. Analysis of the peer assessments included thematic coding of comments and word counts. Prior to and following the assessment period, students completed a survey including the Generalized Self-efficacy (GSE) Scale, and six locally-developed questions regarding the learning environment and perceptions of peer assessment. We performed paired-sample t tests to determine whether there were differences between the pre- and post-peer assessment surveys. The SUNY Upstate Institutional Review Board reviewed the study and determined it to be exempt.
Results: Peer assessment narratives referred most commonly to students’ participation style and the need for greater participation. Word counts ranged widely. A paired sample t test indicated that the difference between pre and post peer assessment GSE scores was significant (P=.009), but the effect size was small (d=0.32). Perceptions of the learning environment did not change after the peer assessments.
Conclusion: Peer assessment offers a potential strategy for enhancing self-efficacy in medical school small-group learning environments and requires few resources to implement, relative to the potential benefits.
Caracterización agroquímica del suelo de 15 fincas con proyección hacia la transformación agroecológica, en el municipio Santa María, Boyacá
Authors: Hernandez Belcy , Castellanos Gonzalez Leonides
Published: January 2022

Contextualización: el conocimiento anticipado de la calidad de los suelos no cultivados previamente es de gran importancia para decidir la implementación de los cultivos y la elaboración de los planes de fertilización. 
Vacío de conocimiento: el estudio contribuyó a la adquisición de conocimiento sobre la condición y calidad de los parámetros fisicoquímicos de los suelos, como paso previo para diseñar prácticas agrícolas nuevas, donde los agricultores no contaban con los respectivos análisis del suelo y desconocían que estos pueden presentar una composición heterogénea, incluso a distancias relativamente cortas.
Propósito del estudio: el objetivo fue caracterizar agroquímicamente los suelos en 15 fincas del municipio de Santa María para conocer su fertilidad natural.  Allí se implementarán 3 modelos agroecológicos en el marco del proyecto “Desarrollo estratégico agroecológico para el fortalecimiento del sector productivo en el Departamento de Boyacá”. 
Metodología: las muestras se recolectaron en el mes de junio de 2019, una vez realizado su procesamiento en el laboratorio se obtuvieron los siguientes resultados: pH (método potenciométrico en agua o en NaF), acidez intercambiable (KCl 1N), Al intercambiable, textura (Bouyucos), CO (Walkley Black %p/v) P (Bray II), S (extracción con Ca(HPO4), bases intercambiables (Ca, Mg, K, Na), capacidad de intercambio catiónico, elementos menores (Fe, Cu, Mn, Zn, por el método de Olsen modificado), conductividad eléctrica, N disponible por los protocolos establecidos en el laboratorio en forma de nitrato y amonio intercambiable (KCl), relaciones iónicas en el suelo (Ca/Mg, Ca+Mg/K, Ca/K, Mg/K). 
Resultados y conclusiones: los resultados obtenidos en el análisis de los suelos muestran deficiencias significativas en cuanto a los macroelementos primarios N, P, K y Ca; sin embargo, evidencian que los suelos cuentan con buena capacidad de intercambio catiónico, lo que favorece la retención e intercambio de nutrientes para las plantas. Por lo tanto, se concluye que los suelos de las fincas estudiadas son adecuados para la implementación de los modelos agroecológicos, a pesar de las deficiencias presentadas por los elementos agroquímicos.  Estas evidencias deberán tenerse en cuenta en los planes de fertilización para suplir estas deficiencias, con base en los requerimientos de cada cultivo. Esto se puede conseguir mediante la aplicación de enmiendas orgánicas, rocas fosfóricas, calcáreas, entre otras.
Aplicación de urea, DAP y KCL sobre almácigos de café (Coffea arabica L.) de la variedad Castillo
Authors: Benavides Cardona Carlos Andres , García Álzate Javier , Álvarez Sánchez David Eduardo
Published: January 2022

Contextualización: en el sistema productivo del café, la etapa de almácigo o semillero se constituye como determinante del éxito para la implementación y comportamiento del cultivo. En esta etapa, la nutrición es un factor muy relevante.
Vacío de conocimiento: la utilización de sustratos de diversas procedencias para la implementación de almácigos en el café dificulta un correcto diagnóstico de fertilidad. Por esta razón, la nutrición en esta fase del sistema productivo se basa en recomendaciones y fórmulas generalizadas que no consideran las necesidades diferenciales de las variedades de café empleadas y su estado al momento del trasplante.
Propósito: el objetivo de esta investigación fue evaluar el efecto de los fertilizantes Urea, DAP, KCl y mezclas de estas sobre el crecimiento de plántulas de café (variedad Castillo) durante la etapa de almácigo. 
Metodología: este trabajo se realizó en el año 2019 en la granja “La Quinta”, del municipio de Consacá (Nariño-Colombia), a 1.650msnm, bajo un Diseño Completamente al Azar con ocho tratamientos y ocho repeticiones, así: 2,17g de Urea + 0,7g de DAP; 4,3 g de DAP; 3,3 g de KCl; 0,6 g de Urea + 4,3 g de DAP; 2,1 g de Urea + 3,3 g de KCl; 4,3 g de DAP + 3,3 g de KCl; 2,1 g de Urea + 4,3 g de DAP + 3,3 g de KCl y un testigo al que no se le aplicaron tratamientos. Se realizó un análisis de varianza con las siguientes variables: altura de planta, número de hojas, peso seco y fresco de las plántulas, además de un análisis de crecimiento funcional con evaluaciones quincenales. 
Resultados y conclusiones: el tratamiento con DAP presentó la mayor altura (20,65 cm), mayor peso fresco y seco de tallo (3,86 g; 1,43 g), mayor peso seco total (5,33 g), mayor área foliar (350,8 cm2) e índice de área foliar (0,99). El tratamiento con Urea + DAP mostró la mejor tasa de asimilación neta (0,00029 g- cm-2 d-1) y mejor tasa de crecimiento del cultivo (2,87_e-05 g- cm-2 d-1). El tratamiento con DAP + KCl alcanzó el mayor valor para tasa de crecimiento relativa (0,047 g-1 d-1). En todos los casos se demostró que, para la fase de almacigo, el fósforo se tornó concluyente, debido a que su presencia se relacionó con comportamientos fisiológicos superiores.
Alternativas para la estabilización de lodos generados en estaciones depuradoras de aguas residuales desde un enfoque sistémico: una revisión
Authors: Saldaña Escorcia Rossember , Castillo Gámez Jeansy Karina
Published: January 2022

Contextualización: el crecimiento demográfico y los problemas ambientales en el ámbito local, nacional e internacional, relacionados con la contaminación de los lodos sin tratar, debido a los volúmenes en aumento de dichos residuos generados por las estaciones depuradoras de aguas residuales (EDAR), aumenta la degradación del medio ambiente.
 
Vacío de conocimiento: hay deficiencias en los manejos de los lodos residuales por desconocimiento de las alternativas convencionales y sostenibles de estabilización, lo que causa que estos no sean aprovechados, debido a sus características, y terminen siendo desechados en puntos de disposición final, lo cual puede generar severos problemas de contaminación.
 
Propósito: evaluar la literatura científica sobre las alternativas implementadas en la estabilización de lodos residuales generados en las EDAR, mediante una revisión documental y un análisis bibliométrico basado en la construcción de diagramas estratégicos y mapa de co-ocurrencia, con el fin de identificar las tendencias de investigación en la temática.
 
Metodología: se indagó la literatura científica mediante un algoritmo de búsqueda con conectores booleanos en la base de datos especializada Scopus®, la cual se analizó mediante redes bibliométricas y diagramas estratégicos y se ordenó una base de datos con la información relevante para el análisis conceptual sobre la temática.
 
Resultados y conclusiones: se obtuvieron 1693 documentos enmarcados en las alternativas de estabilización de biosólidos provenientes de las EDAR, lo que permitió identificar que países como Estados Unidos, China, Brasil y España poseen la mayor producción científica sobre la temática. La generación de biosólidos es una problemática que ha fundamentado investigaciones para la gestión adecuada de estos residuos, para así evitar generar problemas de contaminación, dado que las alternativas convencionales más empleadas para el tratamiento de biosólidos son la digestión anaerobia, el espesamiento, la deshidratación y la incineración, que son eficientes en la gestión, pero desaprovechan el potencial de dichos residuos. Las alternativas como el compostaje y la lombricultura generan subproductos que se pueden aprovechar y de esta forma lograr una disposición final de manera adecuada, que reduzca los costos operacionales y genere beneficios económicos.
Utilización de microalgas como alternativa para la remoción de metales pesados
Authors: Vitola Romero Deimer , Pérez Cardozo Alexander , Montes Donicer
Published: January 2022

Contextualización: la contaminación directa de cuerpos de agua, por vertimientos de agua residual contaminada con metales pesados, es un problema importante que se ha agudizado en las últimas décadas, debido a que los metales pesados pueden alterar el correcto funcionamiento de los ecosistemas.
Vacío de investigación: se hace necesario y urgente la búsqueda de alternativas de remoción de contaminantes metálicos que sean de bajo costo y amigables con el ambiente. En ese sentido, la biosorción es una alternativa que cumple con estas características y su modo de uso es simple.
Propósito del estudio: se planteó como objetivo determinar la capacidad de biosorción de los metales pesados Hg, Cd y Pb por las microalgas Chlorella vulgaris y Scenedesmus obliquus, inmovilizadas en fibra de estropajo (Luffa cylindrica), así como la desorción de  estos como estrategia de recuperación.
Metodología: Para la determinación del Cd y Pb se utilizó un espectrofotómetro de absorción atómica de llama aire-acetileno y para el Hg, uno de absorción atómica con vapor frío. El análisis de los metales pesados removidos se realizó en el sobrenadante y la capacidad de desorción se determinó en el sobrenadante resultante de la biomasa microalgal, la cual  se trató con solución acuosa de ácido y centrifugada. Se realizó un análisis de varianza mediante un diseño completamente al azar. Las diferencias estadísticas significativas (p < 0,05), se determinaron mediante la prueba de Tukey. 
Resultados y conclusiones: los resultados indican diferencias significativas en la biosorción de metales pesados.  Chlorella vulgaris tuvo la mayor biosorción con 94,77 ± 1,63 % para Cd, 92,45 ± 3,95 % de Pb y 81,78 ± 1,36 % de Hg; mientras que Scenedesmus obliquus removió el 90,08 ± 2,69 % de Cd, 86,17 ± 1,78 % de Pb y 80,2 ± 5,49 % de Hg. Y con respecto a la desorción, Chlorella vulgaris presentó los promedios más alto con 97,29 ± 1,93 % de Hg, 96,86 ± 2,14 % de Cd y 95,48 ± 1,19 % de Pb; mientras que Scenedesmus obliquus mostró una desorción de 96,74 ± 2,14 % de Hg, 95,15 ± 2,90 % de Cd y 93,82 ± 2,68% de Pb.  Estos resultados demuestran que la aplicación de biomasa microalgal inmovilizada para la biosorción de metales pesados es una alternativa de biorremediación.
Aspectos de la fisiología y el cultivo del lulo (Solanum quitoense LAM.) en Colombia: una revisión
Authors: Alvarez Herrera Javier Giovanni , Jaime Guerrero Marilcen , Fischer Gerhard
Published: January 2022

Contextualización: el lulo es un fruto promisorio de alta demanda en los mercados, debido a sus excelentes propiedades organolépticas, además de ser fuente importante de vitaminas y minerales. 
 
Vacío de conocimiento: en los últimos diez años se han desarrollado múltiples investigaciones sobre la ecofisiología de la planta de lulo, sin que exista una  revisión de literatura de este. 
 
Propósito del estudio: recopilar aspectos generales del cultivo, incluyendo los principales requerimientos agronómicos y aspectos ecofisiológicos para una producción sustentable. 
 
Metodología: la investigación se basó en una revisión metódica y ordenada de los estudios más relevantes publicados en diferentes bases de datos. 
 
Resultados y conclusiones: el cultivo de lulo se cultiva entre los 1900 y 2200 msnm en Colombia, con temperaturas de 15 a 24 °C. Requiere entre 1.500 a 2.500 mm de precipitación al año. Se asemeja a una planta de días cortos, que exhibe su mejor desarrollo en sitios sombreados con humedades relativas cercanas al 80 %. El método más eficiente de polinización es el realizado por abejorros (Bombus terrestris y Bombus sp.) por medio de vibraciones. La fotosíntesis neta del cultivo de lulo varia de 5,52 a 34,03 μmol CO2 m-2 s-1 a los 398 y 460 días después de transplante; mientras que la eficiencia máxima del fotosistema II (Fv/Fm) en el cultivo oscila entre 0,55 y 0,65, para plantas sin y con aplicación de nitrógeno foliar. 
 
Los valores de clorofila (a, b y total) para plantas de lulo son mayores en plantas en etapa de trasplante que en producción, debido a la reducida área fotosintética. Las concentraciones de nitrógeno mayores a 110 mg L-1 generan mejor rendimiento y mayor área foliar. La planta de lulo comienza la producción entre los ocho y 12 meses después ser trasplantada y produce rendimientos promedio de 8,5 t ha-1. El desarrollo y crecimiento de los frutos de lulo tiene un comportamiento que se ajusta a un modelo logístico sigmoide simple. Los frutos de lulo en la cosecha pueden llegar a alcanzar hasta 209 g con una firmeza de 58 N y valores de 13.6 °Brix y 56,2, 10,8 y 46,8 para los parámetros de color luminosidad (L*), cromaticidad a* y cromaticidad b*, respectivamente.
Global change re-structures alpine plant communities under 15 years of warming, nitrogen, and snow addition: disentangling density independent and dependent effects
Authors: Collins Courtney , Elmendorf Sarah , Smith Jane , Shoemaker Lauren , Szojka Megan , Swift Margaret , Suding Katharine
Published: January 2022

Global change is altering patterns of community assembly, with net
outcomes dependent on species’ responses to the environment, both
directly and mediated through biotic interactions. Here, we assess
alpine plant community responses in a 15-year factorial nitrogen
addition, warming and snow manipulation experiment. We used a dynamic
competition model to estimate the density-dependent and independent
processes underlying changes in species-group abundances over time.
Density-dependent shifts in competitive interactions drove long-term
changes in abundance of species-groups under global change.
Density-independent processes were important when counteracting
environmental drivers limited the growth response of the dominant
species. Furthermore, competitive interactions shifted with
environmental change, primarily with nitrogen, and drove non-linear
abundance responses across environmental gradients. Our results
highlight that global change can either reshuffle species hierarchies or
further favor already dominant species; predicting which outcome will
occur requires incorporating both density-dependent and independent
mechanisms and how they interact across multiple global change factors.
Phylogeography of the Mauremys mutica complex and the implications for conservation management.
Authors: Gong Shiping , Gaillard Daniel , Shi Haitao , Chen Huaiqing , Luo Shu-Jin , Lin Liu , Blanck Torsten , Gao Yangchun
Published: January 2022

For more than three decades, the Asian turtle crisis has resulted in the
decline of every native species in China. For some species, such as the
yellow pond turtle (Mauremys mutica), wild populations have dwindled to
near functional extinction. Previous studies show there is deep genetic
divergence of M. mutica sensu lato between populations north and south
of the Pearl River Drainage but no data to show if phylogeographic
structure occurs within these two main types. In this study, we found
clear phylogeographic structure. In northern types, we found two main
clades, corresponding to mainland China and island clades (Taiwan and
Yaeyema Islands) with uncorrected p values of 0.00-2.0% divergence in
our 2353 bp concatenated mtDNA data set. For the southern types, we
found three main clades corresponding to Hainan, Mainland
(Vietnam/Guangxi) and the Annam pond turtle (Mauremys annamensis) with
divergence ranging from 1.0-1.8% among these three groups. Moreover,
the identification of northern and southern types by phenotype was
roughly 98% accurate, which, coupling with the deep genetic divergence
in mtDNA (5.5-6.7%) and in the 6056 bp nuDNA data set (0.16-0.37%)
provide sufficient evidence for northern M. mutica to be an independent
species, and individuals from the southern clade should be regarded as
subspecies of M. annamensis. Finally, we provide the most comprehensive
database to date which can be used to determine the region of origin for
captive stock. Making the large captive populations of M. mutica, under
the right conditions, potentially valuable for restocking or
augmentation of wild populations.
The Geometric Algebra Lift of Qubits and Beyond
Authors: Soiguine Alexander
Published: January 2022

The Geometric Algebra formalism opens the door to developing a theory
upgrading conventional quantum mechanics. Generalizations, stemming from
implementation of complex numbers as geometrically feasible objects in
three dimensions; unambiguous definition of states, observables,
measurements bring into reality clear explanations of conventional weird
quantum mechanical features, particularly the results of double split
experiments where particles create diffraction patterns inherent to wave
diffraction. This weirdness of the double split experiment is milestone
of all further difficulties in interpretation of quantum mechanics.
Composition and process approaches underpinning the mechanical properties of oleogels
Authors: Barroso Noadia , Santos Matheus Augusto , Okuro Paula K , Cunha Rosiane L.
Published: January 2022

Consumers are becoming aware of the relevance of eating low levels of
trans and saturated fats in processed foods. In addition, many countries
are adopting regulatory measures on the use of these ingredients. For
this reason, the exploration of new technologies capable of producing
structures that trap liquid oil (composed of unsaturated fatty acids,
considered healthier) has been widely investigated in order to replace
saturated and trans fats in food products. One of the most promising
technologies is the so-called oleogels, which present a great challenge
to mimic sensory attributes related to the texture of processed foods
based on saturated fats. In this review, we discuss how the different
approaches used in the production of oleogels, direct or indirect
methods, as well as compositional variables, such as oleogelators and
mixing ratio, can directly influence the mechanical properties of these
structures. An overview of the parameters that can interfere with these
properties contributes to a better understanding of the building of the
oleogels and their possible applications.
Human Versus Machine: A Comparison of Robo-Analyst and Traditional Research Analyst Investment Recommendations
Authors: Coleman Braiden , Merkley Kenneth , Pacelli Joseph
Published: January 2022

We provide the first comprehensive analysis of the properties of investment recommendations generated by “Robo-Analysts,” which are human analyst-assisted computer programs conducting automated research analysis. Our results indicate that Robo-Analyst recommendations differ from those produced by traditional “human” research analysts across several important dimensions. First, Robo-Analysts produce a more balanced distribution of buy, hold, and sell recommendations than do human analysts and are less likely to recommend “glamour” stocks and firms with prospective investment banking business. Second, automation allows Robo-Analysts to revise their recommendations more frequently than human analysts and incorporate information from complex periodic filings. Third, while Robo-Analysts' recommendations exhibit weak short-window return reactions, they have long-term investment value. Specifically, portfolios formed based on the buy recommendations of Robo-Analysts significantly outperform those of human analysts. Overall, our results suggest that automation in the sell-side research industry can benefit investors.

JEL Classifications: G14; G24.
Resistance Switching Effect in Octahedral framework oxide
Authors: Gagou Y. , Allouche B. , Saint-Gregoire P. , El Marssi M.
Published: January 2022

Resistive Random-Access Memories (ReRAM) are an alternative way to create new memory devices. This is physically possible due to the existence in the material, of two resistive states clearly discreditable, as a function of voltage value and polarity first parameter under control to pass from one state to another one. However, the mechanism of the resistance switching is not simple and is under debate. We present in the present chapter all the factors entering in the switching process in tetragonal tungsten bronze (TTB) type structure oxide thin films deposited by PLD technique onto MgO or STO substrates. Results show that GdK2Nb5O15 (GKN) thin films deposited on MgO and STO substrates are resistively switchable. It was found that the nature of the substrate strongly affects the resistance ratio: GKN on SRO/LSCO/MgO showed a large hysteresis compared to GKN on SRO/STO. Substrate effect and oxygen vacancy on resistance switching in GKN thin film were studied in the same experimental conditions. The study of resistance switching in the GKN/MgO and GKN/STO thin films has confirmed that for low voltages, below the threshold value of 1.3 V, the electric transport is dominated by the formation of a Schottky type barrier, which allows a minimum leakage current. Resistance switching in GKN is attributed to the oxygen vacancies migration which can be controlled by the substrate or the frequency sweep.
Theoretical study of spectral responses of heterojunctions based on CuInSe2 and CuInS2
Authors: Keita E. , Ndiaye B. , Dia M. , Tabar Y. , Sene C. , Mbow B.
Published: January 2022

In this work we study the spectral responses of thin films solar cells of heterojunctions based on CuInSe2 and CuInS2. Four-layer structures are studied according to the n+n/pp+ model. First we consider the structure ZnO(n+)/CdS(n)/CuInS2(p)/CuInSe2(p+) where CuInS2 represent the base and CuInSe2 the substrate in this model. Secondly we consider the structure ZnO(n+)/CdS(n)/CuInSe2(p)/ CuInS2(p+), for this model CuInSe2 represent the base and CuInS2 the substrate. ZnO and CdS are used as window layers in each structure. Using the continuity equation that governs transport of carriers in semiconductor material, models for calculating spectral responses are proposed for heterojunctions type n+n/pp+ based on CuInSe2 and CuInS2. For each structure we have presented the energy band diagram based on the Anderson model [1] and determined the expression of the photocurrent. The theoretical results obtained allow to compare the performances of these two models by optimizing the different parameters of each structure (base thickness, diffusion length, recombination velocity at the interface, etc.) in order to improve the overall efficiency of the collection of carriers.
Functional Perovskites: Structure-Properties Correlations
Authors: Bera A.K. , Yusuf S.M.
Published: January 2022

The perovskite structure with general formula ABX3 shows its multidimensional nature in regards to correlations of crystal structures with electronic, magnetic, optical, and catalytic properties. Perovskites are utilized in a large range of applications due to their tremendous versatility. In this chapter, structure-properties correlations in oxide perovskite compounds ABO3 having several functional properties are presented. In particular, neutron and x-ray diffraction results are described to reveal a direct correlation of several important physical properties, such as magnetic, multiferroic, electronic (CMR), and SOFC electrodes with the crystal structures.
Temperature phase transitions in Rb2KRe3+F6 elpasolites - Raman spectroscopy study
Authors: Vtyurin A.N. , Krylov A.S. , Krylova S.N. , Gerasimova Y.V. , Ivanenko A.A. , Voronov V.N.
Published: January 2022

Phase transitions in crystals of fluorine-containing elpasolites are investigated by Raman scattering spectroscopy. It was found that lattice instabilities in these crystals are induced by soft mode condensations, while restorations of these modes in the distorted phases have not been observed due to their strong interactions with low-frequency noncritical lattice vibrations. Increasing the mass of a rare-earth ions shifts down frequencies of noncritical modes, that enhances these interactions and leads to a narrowing of the range of existence of intermediate phase and then to its disappearance.
Trigonal double molybdates and tungstates: Ferroelastic phase transitions
Authors: Zapart M.B. , Zapart W.
Published: January 2022

The overview contains basic information about trigonal double molybdates and tungstates MR(XO4)2, representing a crystal family with layered structure. Their structure features networks of corner-linked RO6 octahedra and XO4 Â tetrahedra. Many compounds of this crystal family exhibit ferroelastic phase transitions. Their ferroelastic properties are discussed, with particular emphasis on the peculiarities of the domain structure. An overview of results of studies on ferroelastic phase transitions, obtained with various experimental methods, is provided. Models of trigonal unit cell distortion are presented for monoclinic phases of KSc(MoO4)2 and RbIn(MoO4)2 crystals.
Organic materials based on thiophene and benzothiadiazole for organic solar cells. Computational investigations
Authors: Kacimi R. , Chemek M. , Azaid A. , Bennani M.N. , Alimi K. , Bejjit L. , Bouachrine M.
Published: January 2022

In this paper, wepresent new organics chemical structures of pendant phenyl ester-substituted thiophene and benzothiadiazole based copolymers leading to donor (D)-acceptor (A) structure-types. Geometrics and photo-physical properties of the studied chemical structure are exploited in the further ground and excited-state. Theoretically, using the DFT and TD-DFT quantum chemical calculation implanted in Gaussian09 software, geometrical and electronic parameters such as the energy of HOMO and LUMO level, the Egap= EHomo- E Lumo and focused electronic parameters of the molecules were determined. It is obvious that the studied molecules show good photovoltaic properties. Thus, studied chemical structures are blended with acceptor compounds such as fullerene and PCBM derivatives in bulk-heterojunction solar cell. Quantic chemical calculations show that the studied compound present good electronic, optical and photovoltaic properties and can be used as potential electron donors in organic solar cells Heterojunction (BHJ).
Barndommens landskap. En studie av unge voksnes minner i møte med barndommens nærnatur
Authors: Fasting Merete Lund , Høyem Jannicke , Bischoff Annette
Published: January 2022

I denne studien undersøker vi hvilke minner som kommer til syne når unge voksne møter barndommens nærnatur igjen, og hvordan kan vi forstå disse minnene. Arbeidet tar utgangspunkt i en kulturell fenomenologisk forståelse. Åtte unge voksne har gått tilbake til sine barndomssteder i skolens nærnatur sammen med en av forskerne. De har gått, klatret og snakket om friluftsliv, lek og lekesteder ute i barndommen. Metoden åpner for å studere komplekse, kroppsliggjorte og stedsspesifikke minner og erfaringer knyttet til konkrete steder, aktiviteter og sosiale relasjoner. Teoretisk bygger studien på fenomenologen Merleau-Pontys beskrivelser av hvordan mennesker bebor verden, Rosas teori om resonans og Caseys tekster om minner og steder. Resultatene viser at de unge voksnes kroppslige utforskning gjennom lek og friluftsliv i barndommen har vært avgjørende for dannelsen av det vi betegner som barndommens landskap. Deres minner fra stedene har hatt betydning for hvem de er i dag, og har lagt et grunnlag for hvordan de forholder seg til natur og medmennesker. Stedsidentitet, formet gjennom friluftsliv og lek i barndommens landskap, kan gi tilhørighet, forankring og resonans i en omskiftelig verden. Dette arbeidet viser at skolens nærnatur kan være viktig for barn og unges dannelse i vid forstand.