bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Sistem Pencahayaan Pada Lantai 3 Gedung Kuliah Umum Institut Teknologi Sumatera
Authors: Naimah Khoirun , Rahmatullah Abri , As Tsabit M Azzam , Akbar P Muqqafa , Kamilah  , Lumban G Javeni Eysama , Hidayat Nuril , Alghozi M Allezandro , Damara Reuben , S Aldhi , S Ardian
Published: July 2023

Various regulations and standards have been issued by various authorities to support and increase the efficiency of energy use and manage energy conservation activities. Energy conservation is the obligation of all parties, including from the side of energy users in buildings, including one of them is the ITERA Public Lecture Building which is used mostly for classrooms, but there is no data on the quality of the lighting system. Therefore, this study aims to analyze the lighting system (energy consumption and lighting level) on the 3rd Floor of the ITERA General Lecture Building using the energy audit method. From the results of the study, it was found that the total energy consumption in the artificial lighting system (lamps) was 798.72 kWh/month, and the lighting level met the minimum limits of SNI 6197-2020, but out of 11 classrooms there were 7 rooms that were too much larger than SNI 6197-2020. So that the saving opportunity that can be done is to change the awareness of room energy users by reducing the length of time the lamp is used and prioritizing the use of natural light in the morning and afternoon so that it can save energy use by up to 34%.
A importância das pesquisas relacionadas aos desastres: colapso da barragem de Fundão Mariana-MG
Authors: Bandeira Otniel Alencar , Bandeira Palmeri Alencar
Published: July 2023

A principal fonte de poluição ambiental são as atividades humanas que atingem o meio ambiente, esses poluentes se acumulam, alterando não só a característica do ar, da água e do solo, mas também causando danos à saúde humana e causando toxicidade aos organismos aquáticos. Dentre as atividades que causam poluição ambiental, destaca-se a mineração, que altera a qualidade do ecossistema e produz abundante quantidade de rejeitos que geralmente ficam na barragem. Quando essas barragens rompem, geram grandes problemas.  Em novembro do dia 05 de 2015, na região de Mariana, em Minas Gerais, a mineradora brasileira sofreu seu pior acidente. A barragem da Samarco Mineradora rompeu e vazou cerca de 43 milhões de metros cúbicos de resíduos de mineração (argila e areia) ricos em ferro, alumínio, manganês e outros metais. A destruição da Barragem do Fundão causou desastre social, ambiental, cultural e econômico incomensuráveis em Mariana, no distrito de Bento Rodrigues e em outros 41 municípios, deixando um encalço de destruição ao longo do Rio Doce até chegar ao oceano. Várias pessoas encontrar-se desabrigadas, sem contar as que perderam a vida na tragédia, 19 pessoas. Os impactos dos ecossistêmicos causados ​​são inestimáveis e inconvertíveis. Tendo em vista as perguntas da população afetada, objetivo desta pesquisa extrair as lições do desastre para mostra a importância continuação dos estudos acadêmicos para contribuição e melhoria da sociedade afetada pelo desastre. Esta pesquisa trata de uma revisão de bibliografia. A revisão bibliográfica sistemática é um método científico para busca a análise de artigos de uma determinada área da ciência.
Modeling the tumor microenvironment of anaplastic thyroid cancer: an orthotopic tumor model in C57BL/6 mice
Authors: Xu Zhen , Shin Hyo Shik , Kim Yoo Hyung , Ha Seong Yun , Won Jae-Kyung , Kim Su-jin , Park Young Joo , Parangi Sareh , Cho Sun Wook , Lee Kyu Eun
Published: July 2023

Introduction

Securing a well-established mouse model is important in identifying and validating new therapeutic targets for immuno-oncology. The C57BL/6 mouse is one of the most fully characterised immune system of any animal and provides powerful platform for immuno-oncology discovery. An orthotopic tumor model has been established using TBP3743 (murine anaplastic thyroid cancer [ATC]) cells in B6129SF1 hybrid mice, this model has limited data on tumor immunology than C57BL/6 inbred mice. This study aimed to establish a novel orthotopic ATC model in C57BL/6 mice and characterize the tumor microenvironment focusing immunity in the model.

Methods

Adapted TBP3743 cells were generated via in vivo serial passaging in C57BL/6 mice. Subsequently, the following orthotopic tumor models were established via intrathyroidal injection: B6129SF1 mice injected with original TBP3743 cells (original/129), B6129SF1 mice injected with adapted cells (adapted/129), and C57BL/6 mice injected with adapted cells (adapted/B6).

Results

The adapted TBP3743 cells de-differentiated but exhibited cell morphology, viability, and migration/invasion potential comparable with those of original cells in vitro. The adapted/129 contained a higher Ki-67+ cell fraction than the original/129. RNA sequencing data of orthotopic tumors revealed enhanced oncogenic properties in the adapted/129 compared with those in the original/129. In contrast, the orthotopic tumors grown in the adapted/B6 were smaller, with a lower Ki-67+ cell fraction than those in the adapted/129. However, the oncogenic properties of the tumors within the adapted/B6 and adapted/129 were similar. Immune-related pathways were enriched in the adapted/B6 compared with those in the adapted/129. Flow cytometric analysis of the orthotopic tumors revealed higher cytotoxic CD8+ T cell and monocytic-myeloid-derived suppressor cell fractions in the adapted/B6 compared with the adapted/129. The estimated CD8+ and CD4+ cell fractions in the adapted/B6 were similar to those in human ATCs but negligible in the original/B6.

Conclusion

A novel orthotopic tumor model of ATC was established in C57BL/6 mice. Compared with the original B6129SF1 murine model, the novel model exhibited more aggressive tumor cell behaviours and strong immune responses. We expect that this novel model contributes to the understanding tumor microenvironment and provides the platform for drug development.
Recent advances on ISRU technologies and study of microgravity impact on blood cells for deep space exploration
Authors: Cao Giacomo , Concas Alessandro , Orrù Roberto , Licheri Roberta , Sani Elisa , Dell’Oro Aldo , Fais Giacomo , Manis Cristina , Manca Alessia , Uras Giuseppe , Caboni Pierluigi , Locci Antonio Mario , Cincotti Alberto , Lai Nicola , Congiu Terenzio , Faa Gavino , Pisu Massimo , Brelstaff Gavin , Pantaleo Antonella
Published: July 2023

The long-term solution to problems like overcrowding, fossil fuel depletion, climate change, and decreasing natural resource availability could be overcome through space colonization and human presence in space, as well as the exploitation of extraterrestrial natural resources. In keeping with this, the objective of this work is to analyze current advancements in technology development for deep space exploration and colonization made by our research team as well as by other organizations with which we are collaborating. First, a method for producing tangible goods suited for industrial or civil installations on the Moon, Mars, or asteroids, using in situ available regolith as the main resource, is discussed. In this regard, a new process based on the occurrence of self-propagating high-temperature synthesis (SHS) reactions was developed for the fabrication of composite ceramics to be used as construction materials. A theoretical analysis of the process using proper dimensionless numbers is also described to offer potential explanations of the key experimental evidences presented in the relevant literature. For instance, it is found that free convection likely plays a crucial role to make SHS front velocity higher under terrestrial conditions when the reaction ignition is carried out from the bottom side, instead of the top side, of reacting mixture. Next, a method that uses the atmosphere and regolith of Mars as raw feedstock to produce in situ useful material such as oxygen, water, food, fuels and fertilizers, is considered. In the next section, the potential for cultivating Spirulina platensis to provide nourishment for the Martian crew is examined. The possible use of sintered lunar regolith simulants such as JSC-1A is also considered for potential thermal energy storage and solar energy harvesting applications, within the context of resource exploitation. Sintered regolith simulant exhibited, compared to the native material in powder form, superior solar absorptance, which makes it suitable for sunlight absorbers in architectures with a cavity-like solar receiver. Finally, a new study is reported which combines biochemical and biophysical approaches in order to compare, under simulated microgravity and under terrestrial conditions, the functioning and structure of red blood cells, over various intervals of time.
Evaluasi Perkerasan Jalan Serta Perencanaan Lapis Tambah (Overlay)
Authors: Saepurrohman Cece , Wahyuni Yuni Sri , Tahadjuddin Tahadjuddin
Published: July 2023

Jalan memiliki fungsi untuk menunjang aktivitas masyarakat sehari-hari baik untuk kendaraan ataupun non-kendaraan. Dalam menunjang pertumbuhan ekonomi disuatu wilayah jalan berperan sangat penting bagi pengguna transportasi sehingga harus diperhatikan kelayakan dan kenyamanan jalan tersebut supaya berfungi sampai batas umur yang telah direncanakan. Sukabumi berada di Provinsi Jawa Barat yang berbatasan dengan Kota Cianjur sebelah barat dan berbatasan dengan kota Bogor di bagian Timur. Karena Sukabumi merupakan kota yang cukup padat dengan transportasi, maka dibangunlah jalan Jalur Lingkar Selatan dengan tujuan mengurangi kemacetan di jalan raya tersebut. Banyak orang melewati jalan itu setiap hari. Sejumlah titik di ruas Jalan Jalur Lingkar Selatan mengalami kerusakan, antara lain amblas, retak, dan kerusakan lainnya, akibat banyaknya jenis kendaraan yang melewati ruas ini antara lain truk besar dan sepeda motor. Maka dari itu perlu di lakukan perbaikan sehingga ruas jalan tersebut tetap nyaman dan bisa dipergunakan sampai dengan umur rencana yang telah ditentukan. Metode Overlay digunakan untuk memperbaiki ruas jalan dengan panjang ± 9,1 km, berdasarkan hasil pemeriksaan estimasi biaya dengan teknik pemeliharaan, khususnya metode Overlay, adalah Rp. 46.742.018.200,00.
Analisis Perubahan Suhu Permukaan Daratan di Kecamatan Ternate Tengah Menggunakan Google Earth Engine Berbasis Cloud Computing
Authors: Latue Philia, Christi
Published: July 2023

Suhu permukaan daratan di Kecamatan Ternate Tengah mengalami peningkatan dari tahun 2013-2023, salah satu faktor penyebabnya yaitu terjadinya perkembangan lahan terbangun yang semakin meningkat setiap tahunnya. Penelitian ini menggunakan data citra Landsat 8 Collection 1 Tier 2 TOA Reflectance pada google earth engine berbasis cloud computing. Hasil penelitian menunjukan bahwa nilai suhu permukaan daratan tertinggi di tahun 2013 yaitu 24,41ᵒ C dan mengalami peningkatan di tahun 2023 menjadi 28,63ᵒ C. Hasil peneltian diharapkan dapat memberikan manfaat yang besar bagi Pemerintah setempat dalam merencanakan dan mengambil keputusan dalam berbagai sector diantaranya pengembangan sektor pertanian, pengelolaan
Plasticity And Plastics: Thoughts of Epistemologists
Authors: Aravind Anusha , C J Chetan
Published: July 2023

Please refer to the attached document for the full article.
Revisiting Kundi Bhandara: Understanding the Ancient Water Management Systems from the Mughal Period - Case of Burhanpur City, Madhya Pradesh
Authors: - Apurva Avinash Gour
Published: July 2023

Since ancient times, managing water has been significant in human civilization. Sophistic water management systems were built in India's Mughal era, which is remembered for its architectural wonders. The Mughal period in India saw substantial developments in water management systems such as wells, canals, and baths. The Kundi Bhandara subterranean water management system in Burhanpur, Madhya Pradesh, is a lesser-known but significant example of their engineering. This research focuses on understanding the historic Mughal water management system and its unique application of the qanat system. The research highlights the sustainable characteristics of this ancient water delivery practice. This study focuses on the case of Burhanpur City in Madhya Pradesh in order to present a thorough understanding of the ancient water management systems from the Mughal era.
This paper investigates the methods and approaches used by the Mughals to manage water resources in Burhanpur by looking at historical documents, and archaeological discoveries, and analyzing the current water structures. The information sheds light on the historical significance of water management in the area and advances our understanding of the city's sustainable water practices.
Cubosome: A Potential Nanocarrier in Cancer Therapy
Authors: - Jitakshara Das , - Madhuchandra Lahan , - Mirza Mahmuda Yasmin , - Karishma Sultana
Published: July 2023

Cubosomes, a specific type of lyotropic nonlamellar liquid crystalline nanoparticle (LCN), has emerged as a highly promising drug delivery system, particularly in the field of cancer treatment. It possesses certain advantages over other nanoformulations. So, this review focuses on cubosome as a drug carrier fro targeting cancer cells.
The Spatial Clustering of ROSAT All-Sky Survey Active Galactic Nuclei. V. The Evolution of Broad-line AGN Clustering Properties in the Last 6 Gyr
Authors: Krumpe Mirko , Miyaji Takamitsu , Georgakakis Antonis , Schulze Andreas , Coil Alison L. , Dwelly Tom , Coffey Damien , Comparat Johan , Aceves Héctor , Salvato Mara , Merloni Andrea , Maraston Claudia , Nandra Kirpal , Brownstein Joel R. , Schneider Donald P. ,   SDSS-IV Team and SPIDERS Team
Published: July 2023

This is the fifth paper in a series of investigations of the clustering properties of luminous, broad-emission-line active galactic nuclei (AGNs) identified in the ROSAT All-Sky Survey (RASS) and Sloan Digital Sky Survey (SDSS). In this work we measure the cross-correlation function (CCF) between RASS/SDSS Data Release 14 AGNs with the SDSS CMASS galaxy sample at 0.44 < z < 0.64. We apply halo occupation distribution (HOD) modeling to the CCF along with the autocorrelation function of the CMASS galaxies. We find that X-ray-selected and optically selected AGNs at 0.44 < z < 0.64 reside in statistically identical halos with a typical dark matter halo (DMH) mass of

M

DMH

typ
,
AGN

∼

10

12.7

h

−
1

M

⊙

. The acceptable HOD parameter space for these two broad-line AGN samples have only statistically marginal differences caused by small deviations of the CCFs in the one-halo-dominated regime on small scales. In contrast to optically selected AGNs, the X-ray AGN sample may contain a larger population of satellites at M
DMH ∼ 1013
h
−1
M
⊙. We compare our measurements in this work with our earlier studies at lower independent redshift ranges, spanning a lookback time of 6 Gyr. The comparison over this wider redshift range of 0.07 < z < 0.64 reveals (i) no significant difference between the typical DMH masses of X-ray-selected and optically selected AGNs, (ii) weak positive clustering dependencies of

M

DMH

typ
,
AGN

with L
X and M
BH, (iii) no significant dependence of

M

DMH

typ
,
AGN

on Eddington ratio, and (iv) the same DMH masses host more-massive accreting black holes at high redshift than at low redshifts.
Properties of Binary Systems in a One-dimensional Approximation
Authors: Pourmand Ali , Ivanova Natalia
Published: July 2023

Evolutionary calculations for stars in close binary systems are in high demand to obtain better constraints on gravitational-wave source progenitors, understand transient events from stellar interactions, and more. Modern one-dimensional (1D) stellar codes make use of the Roche lobe radius R
L concept in order to treat stars in binary systems. If the stellar companion is approaching its R
L, mass transfer treatment is initiated. However, the effective acceleration also affects the evolution of a star in a close binary system. This is different from the gravity inside a single star, whether that single star is rotating or not. Here, we present numerically obtained tables of properties of stars in a binary system as a function of the effective potential: volume-equivalent radii of the equipotential surfaces, effective accelerations and the inverse effective accelerations averaged over the same equipotential surfaces, and the properties of the L
1-plane cross sections. The tables are obtained for binaries where the ratios of the primary star mass to the companion star mass are from 10−6 to 105 and include equipotential surfaces up to the star’s outer Lagrangian point. We describe the numerical methods used to obtain these quantities and report how we verified the numerical results. We also describe and verify the method to obtain the effective acceleration for nonpoint mass distributions. We supply a sample code showing how to use our tables to get the average effective accelerations in 1D stellar codes.
Exploring the Impact of Galactic Interactions and Mergers on the Central Star Formation of APEX/EDGE–CALIFA Galaxies
Authors: Garay-Solis Yeny , Barrera-Ballesteros Jorge K. , Colombo Dario , Sánchez Sebastián F. , Lugo-Aranda Alejandra Z. , Villanueva Vicente , Wong Tony , Bolatto Alberto D.
Published: July 2023

Galactic interactions and subsequent mergers are a paramount channel for galaxy evolution. In this work, we use the data from 236 star-forming CALIFA galaxies with integrated molecular gas observations in their central region (approximately within an effective radius)—from the APEX millimeter telescope and the CARMA millimeter telescope array. This sample includes isolated (126 galaxies) and interacting galaxies in different merging stages (110 galaxies; from pairs, merging, and postmerger galaxies). We show that the impact of interactions and mergers in the center of galaxies is revealed as an increase in the fraction of molecular gas (compared to isolated galaxies). Furthermore, our results suggest that the change in star formation efficiency is the main driver for both an enhancement and/or suppression of the central star formation—except in merging galaxies where the enhanced star formation appears to be driven by an increase of molecular gas. We suggest that gravitational torques due to the interaction and subsequent merger transport cold molecular gas inwards, increasing the gas fraction without necessarily increasing star formation.
A NICER View on the 2020 Magnetar-like Outburst of PSR J1846−0258
Authors: Hu Chin-Ping , Kuiper Lucien , Harding Alice K. , Younes George , Blumer Harsha , Ho Wynn C. G. , Enoto Teruaki , Espinoza Cristóbal M. , Gendreau Keith
Published: July 2023

We report on our monitoring of the strong-field magnetar-like pulsar PSR J1846−0258 with the Neutron Star Interior Composition Explorer (NICER) and the timing and spectral evolution during its outburst in 2020 August. Phase-coherent timing solutions were maintained from 2017 March through 2021 November, including a coherent solution throughout the outburst. We detected a large spin-up glitch of magnitude Δν/ν = 3 × 10−6 at the start of the outburst and observed an increase in pulsed flux that reached a factor of more than 10 times the quiescent level, a behavior similar to that of the 2006 outburst. Our monitoring observations in 2020 June and July indicate that the flux was rising prior to the Swift announcement of the outburst on 2020 August 1. We also observed several sharp rises in the pulsed flux following the outburst and the flux reached quiescent level by 2020 November. The pulse profile was observed to change shape during the outburst, returning to the preoutburst shape by 2021. Spectral analysis of the pulsed emission of NICER data shows that the flux increases result entirely from a new blackbody component that gradually fades away while the power law remains nearly constant at its quiescent level throughout the outburst. Joint spectral analysis of NICER and simultaneous NuSTAR data confirms this picture. We discuss the interpretation of the magnetar-like outburst and origin of the transient thermal component in the context of both a pulsar-like and a magnetar-like model.
Identifying the Gamma-Ray Emission of the Nearby Galaxy M83
Authors: Xing Yi , Wang Zhongxiang
Published: July 2023

We report on the detection of a γ-ray source at the position of the nearby star-forming galaxy (SFG) M83, which is found from our analysis of 14 yr of the data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (Fermi). The source is weakly detected, with a significance of ∼5σ, and its emission can be described with an exponentially cutoff power law. At a distance of 4.61 Mpc, the source’s γ-ray luminosity is ∼1.4 × 1039 erg s−1, roughly along the correlation line between the γ-ray and IR luminosities determined for nearby SFGs. Because of the weak detection, the source spectrum can not be used for checking its similarity with those of other SFGs. Given the positional matches and the empirical expectation for γ-ray emission from M83 due to the galaxy’s star-forming activity, we conclude that the γ-ray source is the likely counterpart to M83. The detection thus adds another member to the group of approximately a dozen SFGs, whose γ-ray emissions mostly have a cosmic-ray origin.
Results of the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC)
Authors: Hložek R. , Malz A. I. , Ponder K. A. , Dai M. , Narayan G. , Ishida E. E. O. , Jr T. Allam , Bahmanyar A. , Bi X. , Biswas R. , Boone K. , Chen S. , Du N. , Erdem A. , Galbany L. , Garreta A. , Jha S. W. , Jones D. O. , Kessler R. , Lin M. , Liu J. , Lochner M. , Mahabal A. A. , Mandel K. S. , Margolis P. , Martínez-Galarza J. R. , McEwen J. D. , Muthukrishna D. , Nakatsuka Y. , Noumi T. , Oya T. , Peiris H. V. , Peters C. M. , Puget J. F. , Setzer C. N. , Siddhartha  , Stefanov S. , Xie T. , Yan L. , Yeh K.-H. , Zuo W.
Published: July 2023

Next-generation surveys like the Legacy Survey of Space and Time (LSST) on the Vera C. Rubin Observatory (Rubin) will generate orders of magnitude more discoveries of transients and variable stars than previous surveys. To prepare for this data deluge, we developed the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC), a competition that aimed to catalyze the development of robust classifiers under LSST-like conditions of a nonrepresentative training set for a large photometric test set of imbalanced classes. Over 1000 teams participated in PLAsTiCC, which was hosted in the Kaggle data science competition platform between 2018 September 28 and 2018 December 17, ultimately identifying three winners in 2019 February. Participants produced classifiers employing a diverse set of machine-learning techniques including hybrid combinations and ensemble averages of a range of approaches, among them boosted decision trees, neural networks, and multilayer perceptrons. The strong performance of the top three classifiers on Type Ia supernovae and kilonovae represent a major improvement over the current state of the art within astronomy. This paper summarizes the most promising methods and evaluates their results in detail, highlighting future directions both for classifier development and simulation needs for a next-generation PLAsTiCC data set.
MHD Casson nanofluid boundary layer flow in presence of radiation and non-uniform heat source/sink
Authors: Manvi Bharatkumar K. , Kerur Shravankumar B. , Tawade Jagadish V , Nieto Juan J. , Sankeshwari Sagar Ningonda , Ahmad Hijaz , Govindan Vediyappan
Published: July 2023

On stretched magnetic surfaces, we present a numerical study of Casson nanofluids moving through porous materials. The Casson liquid model explains how non-Newtonian liquids behave. Numerical techniques are utilized to solve the nonlinear partial differential equations produced by similarity transformations. Results are gathered for the Nusselt number, skin friction coefficient, temperature and velocity. The impacts of physical variables on the flow and heat transfer characteristics of nanofluids are depicted in graphs. They include the Prandtl number, magnetic parameter, radiation parameter, porosity parameter and Casson parameter. Findings indicate that as the Casson nanofluid parameters are increased, the temperature profile rises but the velocity field decreases. With increasing magnetic parameters alone, it is possible to see a decrease in the thickness of the pulse boundary layer and an increase in the thickness of the thermal boundary layer. All the results are depicted in graphical representations.
Comparison of Biochemical, Haematological and Plasmatic Butyrylcholinesterase Parameters in Farmers and Non-Farmers, Morocco
Authors: Sine Hasnaa , Bouchriti Youssef , Sine Hayat , Achbani Abderrahmane
Published: July 2023

Background:

The long-term use of pesticides can cause harmful consequences to both human health and the environment. In the present research, we aimed to compare biochemical, hematological, and plasmatic measurements of butyrylcholinesterase (BChE) between farmers and non-farmers.

Materials and Methods:

The study is cross-sectional and included 270 participants, with 135 farmers using pesticides and a control population of 135 non-farmers. The recruitment of the participants was conducted from August 2017 to the end of December 2019. Blood samples from participants were collected for the evaluation of biochemical markers of the function of the liver and determination of BChE activity. A whole blood sample with ethylenediamine tetraacetic anticoagulant (EDTA) was also taken for a complete blood count.

Results:

The results showed a statistically significant (P = 0.03) decrease in mean corpuscular hemoglobin (MCH) in the cases (28.45 ± 2.94 pg) as compared with controls (29.17 ± 2.54 pg). The statistical analysis of the renal parameters between the two groups determined that the uremia value was significantly higher in cases (34 ± 12 mg/dL) when compared to the control group (29 ± 8 mg/dL) P < 0.001. The cases recorded a significant increase in aspartate aminotransferase (AST) (26.22 ± 11.59 U/L) and alanine aminotransferase (ALT) (25.63 ± 13.47 U/L) enzyme activities among cases versus controls. The results obtained showed a significantly decreased BChE activity in the group of cases exposed to pesticides (7554.52 ± 2107 U/l) compared to the unexposed control group (10135.58 ± 1909 U/l) (t-test, P < 0.001).

Conclusion:

The education of the farmers on correct practices concerning phytosanitary use has the potential of reducing their exposure to these products.
Editorial
Authors: Revista Estudios Ambientales Equipo Editorial
Published: July 2023

Queridos colegas  y  lectores: la Revista  Estudios  Ambientales (REA) agradece los trabajos que  se  presentan  en el presente número  e  invita  a  quienes  deseen  publicar sus artículos  y  comunicaciones  nos  las  envíen  a  través  del  mail  de contacto o desde la plataforma OJS de la revista.

Aprovechamos el espacio para informarles que REA cumple sus primeros 10 años de existencia, y por tal motivo decidimos incluir algunos cambios en la estética de los trabajos, y en la comunicación en general. En este número además agregamos una reseña del proceso que transitamos en relación a sostenernos en el tiempo y crecer en visibilidad, expandirnos geográficamente y tener continuidad incluso pandemia COVID 19 de por medio

El primer número 2023 publica 4 trabajos. En todos los casos se trata de temas actuales y de interés en la agenda ambiental internacional. Cuestiones del proceso de transición energética en Argentina y las oportunidades de valorización de residuos para la producción de energías, el rol de la Universidad Publica en la educación ambiental para construir compromiso socio-ambiental, las representaciones sociales de ecosistemas vulnerables como las turberas en el sur argentino y el desarrollo de ecosofias ambientalmente amigables con el entorno como el desarrollo de la Permacultura en Tandil.

Aprovechamos a felicitar a autores, evaluadores y equipo editorial por garantizar la continuidad de la revista en un contexto como el que atravesamos en 2020 y permitirnos celebrar los primeros 10 años de REA. Esperamos que colegas y lectores den otorguen relevancia a las producciones del presente número.

Invitamos a dar a conocer la revista entre colegas y Los saludamos muy cordialmente.
La Historia de la Ciencia como elemento catalizador de la enseñanza de la Biología y la Naturaleza de la Ciencia
Authors: Nuñez Paola , Pavez José , Santibañez David , Becerra Beatriz , Cofré Hernán
Published: July 2023

Pese a que educadores en ciencia reconocen a la historia de la ciencia (HOS) como un elemento importante para la enseñanza de la ciencia y de la naturaleza de la ciencia (NOS), los profesores no parecen reconocer el valor que posee la HOS, ni disponen de materiales para incorporarla en sus aulas. En este trabajo se revisa el papel que juega la HOS en la enseñanza de la ciencia, como un elemento motivador para la enseñanza de contenidos conceptuales, para fomentar el espíritu crítico, para invitar a los estudiantes a hacerse preguntas, para identificar sus obstáculos conceptuales y para la enseñanza de NOS. Se analizarán los distintos elementos históricos que se han propuesto para incluir en las estrategias didácticas, donde destacan los errores científicos, experimentos clásicos, disputas, desarrollo de teorías, entre otros. En cuanto a los enfoques de enseñanza para incorporar la HOS en la clase de ciencia, se revisan tanto modelos implícitos (Monk y Osborne, 1997), como explícitos (Paraskevopoulou & Koliopoulos, 2010, Rudge y Howe (2009). Para ejemplificar tanto elementos históricos usados como modelos de enseñanza de la HOS, se expone una propuesta para la enseñanza de la genética, considerando el desarrollo histórico de la teoría de la herencia para enseñar algunos conceptos científicos y algunos aspectos de NOS. Luego de realizar una revisión de los programas de estudio vigentes en Chile se evidencia la mención recurrente de elementos de la HOS, pero sin mayores propuestas didácticas para su incorporación en las clases. Finalmente se discuten las implicancias y desafíos del uso de HOS para la enseñanza de las ciencias y la formación inicial y continua.
Una actividad para enseñar selección natural incluyendo la historia de la ciencia: el legado de Dobzhansky llega a la sala de clases
Authors: Cofré Hernán , Nuñez Paola , Becerra Beatriz
Published: July 2023

En la enseñanza de la evolución, muchos de los conceptos erróneos que tienen los estudiantes se relacionan en cómo ellos creen que trabaja la ciencia. Lo importante de esto, es fomentar la comprensión de la evolución como un conocimiento científico basado en datos empíricos, y no como "sólo una teoría". Para ello un buen recurso puede ser incluir ejemplos de Historia del desarrollo del conocimiento evolutivo. La actividad que aquí se presenta, involucra a los estudiantes en el descubrimiento de datos empíricos que muestran evidencia sobre el cambio genético en las poblaciones naturales.
Impacto del uso de pizarra interactiva en el proceso de enseñanza y aprendizajes en la asignatura de Histobiología de la Universidad Viña del Mar
Authors: Rojas Eva , Maulén Aliro , Rivera Belén , Blackwood Christopher
Published: July 2023

Este estudio pretende implementar el uso de tecnologías a través de la incorporación de una pizarra interactiva en las clases de laboratorio de la asignatura Histobiología para los estudiantes de primer año de la carrera de Tecnología Médica. El objetivo es establecer el impacto que tiene el uso de dicha pizarra en la enseñanza y aprendizajes. Para ello,se trabajará con un grupo experimental (con uso de pizarra interactiva) y grupo control (sin uso de pizarra interactiva) Los resultados estarán referidos a las comparaciones entre los ensayos y Diagnósticos Histológicos 1 y 2 entre grupos y entre sí
Reseñas de investigaciones
Authors: Cofré Hernán
Published: July 2023

Reseñas de investigaciones de autores chilenos en distintas revistas
Cambios curriculares: ¿Quo Vadis?
Authors: Cofré Hernán
Published: July 2023

Editorial del número
¿Nos arriesgamos a explorar otros modos de entender, enseñar y comunicar la ciencia?
Authors: Ibaceta Guerra Nina , Bravo González Paulina
Published: July 2023

Presentación Volumen Especial 4 número 1.
El Programa de Indagación Científica para la Educación en Ciencias
Authors: Hernández Lémann Edgard , Caffi Pizarro Daniel
Published: July 2023

La educación es clave en el progreso y desarrollo de los países, por ello, entregar una educación de calidad es fundamental para contribuir a combatir la pobreza, disminuir la vulnerabilidad, promover la movilidad social y reducir las desigualdades. En este marco, el Programa de Indagación Científica para la Educación en Ciencias (en adelante ICEC), surge como una iniciativa de innovación pedagógica que busca mejorar la enseñanza y el aprendizaje de las ciencias en escuelas y liceos, urbanos y rurales a través del uso de la indagación científica como enfoque didáctico.
Escuchando nuestras aulas a través de la indagación científica: experiencias e impacto de la contaminación acústica en el colegio
Authors: Álvarez Maldonado Carla , Ruíz Dubreuil Gladys , Núñez José J.
Published: July 2023

En el contexto escolar, se ha observado el efecto negativo del ruido en el desarrollo de habilidades del aprendizaje tales como la lectura, la atención, la resolución de problemas y la memoria. El objetivo de este trabajo fue proponer un mejoramiento en la calidad de vida de las y los estudiantes, aportando a los aprendizajes articulando asignaturas como Física, Biología, Matemáticas, Lenguaje, Artes Visuales y Educación Tecnológica mediante la promoción del trabajo transversal y colaborativo. Se plantea que si las y los estudiantes adquieren conocimiento científico pertinente, comprenderán los efectos que tiene el ruido en su organismo y, por lo tanto, obtendrán herramientas coherentes y atingentes para promover el autocuidado.
La Magia de las Ciencias
Authors: Campusano Carvajal Aldecira Marlene , Carmona Araya Claudia Jimena
Published: July 2023

Este recurso educativo, creado con el propósito de fortalecer la implementación de la metodología indagatoria en los niveles de transición de la comuna de Monte Patria, nace a través del programa ICEC para fortalecer el trabajo en la comunidad de aprendizaje. Este material de apoyo se diseñó, validó e implementó bajo el nombre de "Descubriendo la Magia de la Ciencia", que se realizó en conjunto con las coordinaciones comunales de educación parvularia y de ciencia, además de las educadoras ICEC de la comuna. Este recurso educativo cuenta con orientaciones didácticas, que incluyen una planificación general de los Objetivos de Aprendizaje a trabajar y 17 planes de clase, con su respectiva rúbrica evaluativa. Se abarca el ámbito de "Interacción y Comprensión del Entorno" y el núcleo "Exploración del Entorno Natural" propuesto en las nuevas bases curriculares de educación parvularia. Además, se ha diseñado un cuaderno de trabajo para niños y niñas, con actividades para desarrollar en forma individual y grupal. A partir de experiencias guiadas relacionadas con este entorno, las y los párvulos avanzan en el desarrollo de habilidades indagatorias, como observar, preguntar, inferir, predecir, comunicar, buscando establecer relaciones entre los hechos, y explicar lo que observan a partir de los conocimientos y experiencias que poseen.
Reseñas de investigaciones
Authors: Cofré Mardones Hernán Luis
Published: July 2023

Resumenes de investigaciones de autores chilenos publicadas en diferentes medios.
The Fire Weather Index Improved for Boreal Peatlands Using Hydrological Modeling and Satellite-Based L-band Microwave Observations
Authors: Mortelmans Jonas , Felsberg Anne , De Lannoy Gabriëlle , Veraverbeke Sander , Field Robert , Andela Niels , Bechtold Michel
Published: July 2023

Abstract. The Canadian Fire Weather Index (FWI) system, even though originally developed and calibrated for an upland jack pine forest, is used globally to estimate fire danger for any fire environment. However, for some environments, such as peatlands, the applicability of the FWI in its current form, is often questioned. In this study, we replaced the original moisture codes of the FWI with hydrological estimates resulting from the assimilation of satellite-based L-band passive microwave observations into a peatland-specific land surface model. In a conservative approach that maintains the integrity of the original FWI structure, the distributions of the hydrological estimates were first matched to those of the corresponding original moisture codes before replacement. The resulting adapted FWI, hereafter called PEAT-FWI, was evaluated using fire occurrences over boreal peatlands from 2010 through 2018. Adapting the FWI with model- and satellite-based hydrological information was found to be beneficial to estimate fire danger, especially when replacing the deeper moisture codes of the FWI. For late-season fires, further adaptations of the fine fuel moisture code show even more improvement due to the fact that late-season fires are more hydrologically driven. The proposed PEAT-FWI should enable improved monitoring of fire risk in boreal peatlands.
La neutralidad y su neutralización: el eco mítico de la Modernidad en el tiempo presente
Authors: Sánchez Fernández José Manuel
Published: July 2023

El presente trabajo parte del paralelo antitético establecido en torno al par amigo-enemigo que aparece en el “Concepto de lo político” de C. Schmitt para, a continuación, analizar las interesantes propuestas que llevan a cabo distintos autores, entre otros, H. Blumenberg, a las que añadiremos como contrapunto los representantes de la Escuela de J. Ritter, W. Böckenförde y H. Lübbe. En especial señalamos el tránsito que se produce de la neutralidad a la neutralización, a partir de la nueva consideración de la temporalidad que se produjo a comienzos del Siglo XVI. Sin embargo, de esta paradójica constitución surgirán una serie de mitos correlativos a la neutralización que la refuerzan, por lo que nos referimos, finalmente, al status quo y al regreso, que constituyen los ecos metáforicos del moderno binomio progreso-regreso.
Las corporaciones en la teoría política moderna: posiciones desde Hobbes y Hegel
Authors: Ricci Cernadas Gonzalo , De Nicola Juan Pablo
Published: July 2023

Nuestro interés en el presente trabajo es, efectivamente, enfocarnos en la temática de las corporaciones, pero centrándonos en dos autores en particular: Thomas Hobbes y Georg Wilhelm Friedrich Hegel. Como se verá, mientras que Hobbes referirá a las corporaciones como empresas, Hegel las aludirá como asociaciones (encargadas de anexar la sociedad civil con el Estado). Es a estos fines que estructuraremos el presente trabajo en tres tiempos. En primer lugar, explicaremos cómo las corporaciones surgen de acuerdo a las teorías de ambos autores. Luego elucidaremos la forma en que las mismas funcionan y se encuentran conformadas. Finalmente, en tercera instancia dilucidaremos la relación que las corporaciones mantienen con el Estado tanto en Hobbes como en Hegel.
Application of TQM Practices on Organizational Performance: A Study of Lafarge Africa Plc. Calabar, Cross River State, Nigeria
Authors: A.A. Ele , K.C. Nwekpa , S.I. Eneh
Published: July 2023

This study evaluated the application of TQM practices on organizational performance of Lafarge Africa Plc. The specific objectives were to examine the extent to which top management commitment, customer focus, process/product design and training and education on quality are applied or implemented in producing quality products in order to enhance performance. The study employed survey research design. The population of the study was 463 respondents. The study used a structure questionnaire using 5 points Likert Scale of SA=5, A=4, U=3, D=2, and SD=1. The sample size was 210 respondents using Krejcie and Morgan Table of 1970 for sample size determination. Cronbach Alpha Coefficient was used to validate the reliability of the instrument with the coefficient index of 97%. Simple Linear Regression Model was employed to test the hypotheses using SPSS version 23.The study revealed that the application of top management commitment to quality has a positive and significant effects on organizational performance of Larfarge Africa Plc. Calabar, Cross River State. The study revealed that the application of customer focus has a positive and significant effect on organizational performance. The study also found that the application of process design on quality has a positive and significant effect on organizational performance. The study also revealed that the application of training and education of workers on quality has a positive and significant effect on organizational performance. The study recommended that the management of the organization should put in more efforts and commitment to quality issues and decisions in order to improve quality products and services continuously. The management should also ensure that quality of products are maintain based on customers specification and expectations in order to enhance organizational performance steadily. The management should design the product and production processes based on quality standards set or established by SON and NAFDAC in the system in order to improve performance steadily. The management of the organization should ensure that workers are regularly train and educated on quality issues in order to produce quality products on a continuous basis.
Realidad virtual como coadyuvante en el manejo el dolor de origen oncológico en pacientes pediátricos.
Authors: Morejón-Ulloa María José , Barzalllo-Correa Luis Felipe
Published: July 2023

Introducción: El dolor oncológico se caracteriza por ser neuropático, disruptivo y óseo, por lo que las estrategias de manejo están orientadas a actuar sobre estos puntos. Dentro de las estrategias de manejo farmacológico se encuentran los opioides que son la primera elección. Por lo tanto, la necesidad de aplicar estrategias no farmacológicas como la realidad virtual permite disminuir la experiencia dolorosa. Metodología: Se realizó una revisión bibliográfica narrativa sobre el uso de realidad virtual como coadyuvante en el manejo del dolor oncológico en pacientes pediátricos. Resultados: La realidad virtual como terapia no farmacológica coadyuvante para el manejo del dolor tiene resultados óptimos en pacientes pediátricos, se ha evidenciado reducción del dolor considerable al momento de realizar procedimientos invasivos, además del control de la ansiedad previa a los tratamientos quimioterapéuticos o radioterapéuticos. Conclusiones: El empleo de coadyuvantes en el manejo del dolor como la realidad virtual ha demostrado efectos significativos en ansiedad y dolor. Las características de la realidad virtual como la personalización, presencia, interacción y relaciones sociales permiten resolver otras limitantes de la enfermedad como la falta de socialización y exploración del medio exterior, además de evitar la toxicidad asociada al uso de fármacos opioides.
Effect of planting time and density on plant growth, seed yield and quality attributes in onion (Allium cepa) cv. Pusa Riddhi
Authors: KUMAR SANJAY , TOMAR B S , JAIN S K , SINGH NAVEEN , PARSAD RAJENDER , MUNSHI A D
Published: July 2023

The present experiment was conducted to investigate the effect of planting time and density on plant growth, seed yield and quality attributes in onion (Allium cepa L.) cv. Pusa Riddhi at SPU, IARI, New Delhi during rabi 2013-14 and 2014-15. The experiment consists of three different planting dates, i.e. 15 October (T1), 25 October (T2) and 5 November (T3) with three spacings, viz. 60×10 cm (S1) 60×20 cm (S2) 60×30 cm (S3). The experimental results revealed that the date of planting and plant spacing had significant influence on growth attributes, flowering, yield and quality characters. The planting on 15 October (T1) showed significant higher, seed scape height (101.4 cm), umbel diameter (6.54 cm), productive umbellates/umbel (414.73), seed setting (83.69%), seed yield/plant (8.71 g) and yield/ ha (6.86 q), germination (%) (88.43), seedling length (9.48 cm), seedling dry weight (1.9 mg) and vigour index-I and II (8.33.32 and 167.08) than 25 October and 5 November planting. The plant spacing 60×30cm (S3) showed higher number of leaves/plant (40.89) seed scape height (102.26 cm), scape diameter (1.88 cm), total scapes/plant (11.72), umbel diameter (6.58 cm), productive scapes/plant (8.35), umbellates/umbel (503.52), productive umbellates/umbel (419.4), yield/umbel (3.48 g), seed yield/plant (12.43 g), seed yield/ha (6.22 q), 1000 seed weight (3.01 g), germination (%) (89.76) and seed vigour-I and II (918.56 and 172.96) than closer spacing. The incidence of disease, disease severity index and scape lodging (%) were significantly lower in 15 October (T1) and 60×30 (S3).
APLIKASI PENJUALAN WAGHE COFFEE BERBASIS WEBSITE MENGGUNAKAN PHP AND MY SQL DENGAN FRAMEWORK BOOTSTRAP
Authors: Kuwat Setiyanto  , Hafidh Raihan Al Ghifari
Published: July 2023

Website-Based Waghe Coffee Sales Application. In an era that is all modern like now, technology has a big role in society, people are very dependent on technology and because of that people want services that are easy to access, fast and efficient. The Waghe Coffee Sales Application was built using Visual Studio Code using PHP, MySQL Database and phpMyAdmin, XAMPP and using the Bootstrap Framework, as well as several research methods to get maximum results by means of data collection, application design, implementation and testing. This application has been tested with a blackbox and tested using a computer and mobile with each using 2 different web browsers and 2 different devices and testing the website display. The facilities provided by this application are baskets that assist customers in purchasing goods when purchasing products and there are contacts for customers to contact the admin as well as a payment method by cash on delivery (COD).
Decolonizing Evaluation of Indigenous Land-Based Programs: A Settler Perspective on What We Can Learn from the LANDBACK Movement
Authors: DeLancey Deborah
Published: July 2023

There is increasing recognition of the importance of land-based programming in promoting Indigenous cultural resurgence and community-building. This article explores the challenges associated with evaluation of on the land programs, and considers ontological and epistemological challenges associated with applying a postpositivist western evaluation approach. It is suggested that Indigenous-led evaluation should be mandated for Indigenous land-based programs, consistent with emerging recognition of Indigenous peoples’ rights to sovereignty over programs and services.
Decolonizing Data Visualization: A History and Future of Indigenous Data Visualization
Authors: O'Connor January , Parman Mark , Bowman Nicole , Evergreen Stephanie
Published: July 2023

On the whole, the field of data visualization is white. Contemporary views of historical data visualization tend to trace back to a few iconic visuals tied to European wars and conquests. The modern explosion of the field has been centered around the ideas of white men, as if they invented data visualization. Yet, Indigenous populations world-wide have been incorporating data visualization into their record keeping for centuries before anyone had heard of Edward Tufte. In this article, three Indigenous evaluators (Mohican/Munsee, Cherokee, and Tlingit) along with a non-Indigenous co-conspirator, will discuss their journeys creating space to weave together Western notions of data visualization best practices and Indigenous ways of knowing and storytelling. The authors focus their evaluative work on the support of Indigenous communities and will reflect on what has worked in communicating data, what hasn't, and how far data visualization has to go in all four directions.