bluuebunny/crossref_metadata_2025 huggingface dataset:
Hematopoietic stem cell transplantation in two sisters with bone marrow failure associated with POLE gene variants
Authors: Fujimori Kentaro , Ikenobe Norihito , Gocho Yoshihiro , Uchiyama Toru , Deguchi Takao , Sakaguchi Hirotoshi , Tomizawa Daisuke , Takeuchi Ichiro , Shimizu Hirotaka , Arai Katsuhiro , Ishiguro Akira , Matsumoto Kimikazu , Iguchi Akihiro
Published: March 2024

POLE codes for DNA polymerase epsilon (Pol ε) and variants of Pol ε
catalytic subunit 1 can be pathogenic. We recently reported a novel POLE
gene variant (p.[D1131fs];[T1891del]) which leads to bone marrow
failure in two Japanese sisters. Here, we describe the successful course
of hematopoietic stem cell transplantation of these two sisters. Both
cases were born with congenital anemia and remained transfusion
dependent. Their bone marrow showed gradually proceeding trilineage
dysplasia. They both underwent HCT from an unrelated bone marrow donor
and successfully achieved engraftment. Ten and eight years have passed
respectively, and they are doing well without transfusion.
Fake news? The impact of information mismatch in mating behaviour
Authors: Rodrigues Leonor , Magalhaes Sara
Published: March 2024

Multiple cues are often used for mate choice in complex environments,
potentially entailing mismatches between different sources of
information. We address the consequences thereof for receivers using the
spider mite Tetranychus urticae, in which virgin females are highly
valuable mates compared to mated females, given first male sperm
precedence. Accordingly, males prefer virgins and distinguish them using
cues from the females and/or that are present on the substrate. Whereas
the former are more reliable, the latter may allow for a faster or more
long-distance response. However, there can be mismatched information
between cues as females move and/or mate. Here, we tested the
consequences thereof by exposing males to mated or virgin females on
patches previously impregnated with cues deposited by females of either
mating status. Male mating attempts were solely affected by substrate
cues while female acceptance and the number of mating events were
independently affected by both cues. Copulation duration, in contrast,
depended mainly on the mating status of the female, with the number of
copulations and the total time spent mating being intermediate in
environments with mismatched information. Ultimately, male survival
costs mirrored male investment in mating. These results suggest that, in
environments with mismatched information, the substrate cues left by
females are instrumental for males to find their mates, but they can
also lead to males paying survival costs without the associated benefit
of mating effectively, or suffering reduced costs at the expense of
losing effective mating opportunities. The benefit of using multiple
cues will then hinge upon the frequency of information mismatch, which
itself should vary with the dynamics of populations.
On the Stability and Accuracy of Clenshaw-Curtis Collocation
Authors: Younes Ahmad Bani , Atallah Ahmed
Published: March 2024

We study the A-stability and accuracy characteristics of Clenshaw-Curtis
collocation and present closed-form expressions to evaluate the
Runge-Kutta coefficients of these methods. The stability study proves
that these methods are A-stable up to a high number of nodes. High
accuracy is another benefit of these methods; numerical experiments
demonstrate that they can match the accuracy of the Gauss-Legendre
collocation, which has the optimal accuracy order of all Runge-Kutta
methods.
Periodontal Health of Pregnant Women in Sri Lanka: Insights from a Cross-Sectional Study
Authors: Gammulle Kavithrini Anunadika , Dhanapriyanka Manori , Bhat Meghashyam
Published: March 2024

Introduction: Against the challenging socio-political backdrop
of the country, this research examines the periodontal health of
pregnant women in Sri Lanka. Methods: This analytical
cross-sectional study was conducted among 576 pregnant women, attending
community Antenatal Clinics in a selected Medical Officer of Health
area, in Sri Lanka. A two-stage cluster sampling method with a
probability proportionate to size technique was used to select the
clinics. Systematic sampling was used to recruit pregnant women from
each clinic. An interviewer-administered questionnaire and oral health
examination form were used for data collection. Results: Over
60% exhibited poor oral hygiene. Moderate to severe gingivitis was seen
among 23.3%. Approximately 67% of participants demonstrated poor
knowledge about periodontal diseases. About 67% of the study
participants were unemployed and 32.47% had a monthly income of less
than 40,000 rupees. Regression analysis identified the trimester of
pregnancy, socioeconomic indicators, frequency of dental visits, recent
full mouth scaling, and knowledge about periodontal diseases as
significant predictors of oral hygiene status. Age, trimester, brushing
frequency, recent full mouth scaling, and knowledge about periodontal
diseases predicted the gingival status. Participants with a lower
socioeconomic status demonstrated poorer oral hygiene and gingival
health. Conclusion: There was suboptimal oral hygiene and
gingival health coupled with limited access to dental care and
inadequate knowledge about periodontal health that demands urgent
interventions. The high prevalence of unemployment combined with the
association between low socioeconomic indicators and poor periodontal
health outcomes, underscores the importance of empowering young women
through education and employment.
Hydatid cyst management and follow-up in cancer patient
Authors: Shabani Shiva , Shabani Shirin , Zarinfar Yasaman
Published: March 2024

Hydatid disease is a rare tapeworm infection that can cause the
formation of cysts in the liver and other organs. Although it is
uncommon for patients to have both hydatid cysts and cancer at the same
time, it is possible, and this can easily be confused with metastasis.
Proper management of hydatid cysts in a patient with cancer requires the
consensus of oncologists, hematologists, and infectious disease
specialists. According to a literature review and investigation of case
reports, the treatment approach depends on the stage of the cyst, and
chemotherapy management remains unchanged. It is crucial to follow
specific treatment guidelines for each stage of the cyst to ensure
proper treatment.
Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers
Authors: Cheng Yangchun , liu xiangdong , Sha Yufei , Chang Wenzhi , Bi Jiangang
Published: March 2024

Frequency response analysis is widely used for the offline diagnosis of
winding deformations in power transformers. To apply it to a working
transformer, the magnitude of signals of the response current, which is
of the order of microamperes, needs to be measured by using Rogowski
coil sensors against the load current of the order of thousands of
amperes. The saturation of the power frequency magnetic field in current
sensors must be inhibited to ensure the accurate measurement of response
currents with such a small magnitude. The authors of this paper propose
a method to suppress the power frequency magnetic field by using a
sensing system involving a special connection of three-phase current
sensors based on the rule that the sum of the three-phase power
frequency load currents of the transformer is close to zero. Each sensor
consists of two secondary-side coils: a measuring coil and an
anti-saturation coil. The anti-saturation coils are connected in
parallel with one anothes through small inductors to eliminate the power
frequency magnetic field in the cores of the sensors. We use theoretical
analysis to derive the solution to this system. The results of
experiments to verify the proposed method showed that it enables the
sensors to function with a transformer carrying a load current of 2333
A, while incurring a relative error in the response current that is
smaller than 2%.
Do larger pollinators have higher pollination efficiency for a generalist plant Hibiscus mutabilis?
Authors: Shi Xiaoqing , Zheng Bin , Liu Xiaoli , Quan Qiumei , Li Yunxiang
Published: March 2024

Many insect species provide pollination services for flowering plants.
However, the pollination efficiency of various pollinator species varies
greatly due to differences in body size, foraging behavior, and
visitation rate. Here, we investigated a generalist plant Hibiscus
mutabilis, and we compared the body size, visitation rate, and
pollination efficiency of five pollinator species. Our observations
revealed that the pollination efficiency of the moth species was
relatively lower than all bee species. The body length of five
pollinator species increased the amount of transferred pollen, and
larger bees tended to remove more pollen from anthers and deposit more
pollen on stigmas, resulting in higher pollination efficiency. However,
there was no correlation between the intertegular distance and
pollination efficiency of visitors in H. mutabilis. Body length may be a
better index of body size than intertegular distance.
Recent advances in synNotch for biomedical application
Authors: Jiang Zhiwei , Song Luyao , Zhang Qinmeng , Sui Hairu , Gao Chenlu
Published: March 2024

Synthetic Notch receptor is flourishing as a powerful tool for the
accurate control of cell functions. It is a sensing receptor system
developed based on the Notch signaling pathway. The synNotch receptors,
combined with the downstream transcription programme, have the potential
in constructing organoids and 3D tissues. It can also be used to track
and visualize intercellular communication. Additionally, engineering
synNotch cells carrying specific receptors significantly improve the
efficacy and safety of immunotherapy. This review introduces the modular
structure and multifaceted application direction of synNotch and
summarizes four core design principles, which may become the key to the
regulating receptor function. In addition, the advantages and
limitations of synNotch receptors are summarized, providing new insights
into the further use of synNotch receptors in biomedicine.
Long-term trends in the prevalence of pressure ulcer disease in elders aged 60-94 years from 1990 to 2019 in China: A join-point regression and trend analysis based on GBD 2019
Authors: ZHANG Cuiling , Weng Sui-yun , Liu Song-kang , Jiang Miao-ling , Yu* Min
Published: March 2024

Introduction:Pressure ulcer disease (PUs) is a common geriatric
complication that impacts national public policy and brings a huge
social burden. Objective: To analyze the long-term trends in PUs
prevalence among Chinese elders aged 60-94 from 1990 to 2019 to inform
targeted public policies. Methods:The age-standardized prevalence rates
(ASPRs) and crude rates per 100,000 population of PUs were reported in
China from 1990 to 2019 from the Institute for Health Metrics and
Evaluation using the Global Health Data Exchange (GHDx) online query
tool.The ASPRs of elderly PUs were calculated and stratified by sex and
age. Individuals aged 60-94 were divided into a group according to 5
years. The Joinpoint regression model was used to evaluate the trend of
PUs elder prevalence across the time.The annual percentage rate
change(APC),average annual percentage change(AAPC) and 95% confidence
intervals (95%CIs) for the EAPCs were calculated to explore the
characteristics of the PUs elders prevalence in China. Results: Results
showed an upward trend in ASPRs for PUs in both sexes, with higher rates
in males.Join-point regression analyses also confirmed a significant
upward trend in ASPRs for both sexes among elders, with a more
pronounced increase in males.The prevalence of PUs has decreased among
60-69 years old elders but increased after 70 years old. Conclusion:The
disease burden of PUs has increased in China from 1990 to 2019, with
higher rates in men. The prevalence of PUs in elders showed an overall
upward trend but varies at different age stages.Different management and
treatment strategies should be developed for the elderly at different
age stages and gender.Collaborative efforts involving the government,
society, and medical institutions are needed to address the prevention
and management of pressure ulcers in China.
Dams overtopping scenarios from catastrophic landslides in mountains’ headwaters Case study in Kobe City, Japan
Authors: Gomez Christopher
Published: March 2024

As a Mw 8.0 Nankai Trough Earthquake is predicted with an 80% probability of occurrence within the next 30 years, the efficiency of check dams in the mountains above Kobe City is a crucial question when considering co-seismic landslide disaster risk management. In the present contribution the author aimed to define which subsection of the Sumiyoshigawa watershed may be more prone to generate impacts in downstream Kobe City from catastrophic landslides in the headwaters. For this purpose, the present state of the check dams network was analysed from the 2018 LiDAR (Light Detection and Ranging) data, considering the progressive infilling of the structures. As a result, the capacity of the dams in 2018 dropped by about 1/10 of the original designed capacity, arguably because of the heavy rainfall events in 2014 and 2018. Despite this evolution, however, landslides > 20,000 m3 starting from only one tributary can fill all the dams and flow downstream. From this data, it is possible to prioritize dam curation programs, especially because population ageing and shrinking is reducing the manpower and the funds available to maintain the check dams.
Leveraging up Profitability in the Oil and Gas Industry: Economic Evaluation of the Continuity of Monobore Drilling Well Architecture in PT Pertamina Hulu Indonesia Zone 9 in Structure-X
Authors: Tammala Alvine W. , Sudrajad Oktofa Y.
Published: March 2024

In the context of the high-risk, high-investment oil and gas industry, operational efficiency plays a pivotal role in profitability, making Key Performance Indicators (KPIs) a crucial focal point. In 2021, the oil production downturn in PEP TSS, particularly in the drilling sector, raised concerns about the financial outlook. The condition became tamed after merging with PHSS, which created an opportunity to transfer knowledge from one another. This actually prompts a critical examination of the potential for implementing monobore well architecture, notably in Structure-X. Monobore design, renowned for its cost-effective approach to wellbore design, production, and completion, emerges as a promising avenue for financial recovery for PEP TSS. The research stages encompass a thorough literature review, analysis of primary and secondary data, and quantitative assessments. Assumptions revolve around the cost-effectiveness and performance improvements achievable through monobore, supported by the hypothesis that it can outperform conventional well architecture with a high chance of success findings indicating a mere 14% probability of NPV < 0 and an estimated $0.54 million USD increase in profitability compared to conventional well architecture, suggesting significant potential for financial gains in the industry.
Impact of Cognitive Load Theory on the Effectiveness of Microlearning Modules
Authors: Lopez Sandeep
Published: March 2024

This study explores how Cognitive Load Theory (CLT) impacts microlearning effectiveness in the Indian educational context. CLT, introduced by John Sweller in the late 1980s, suggests that cognitive capacity influences information processing. The research aims to assess cognitive load in microlearning, gauge its perceived effectiveness, examine the relationship between cognitive load and effectiveness, and explore demographic influences. A structured survey, conducted over 4 weeks with 300 participants from educational institutions and online platforms in India, revealed moderate intrinsic and extraneous cognitive load, with higher germane load. Microlearning modules were highly effective, improving knowledge retention, engagement, and learning outcomes. The study emphasizes managing cognitive engagement and minimizing extraneous load. Demographic factors, such as prior microlearning experience, also influence effectiveness. These findings underscore the importance of balanced instructional design aligned with cognitive load principles, with microlearning emerging as a potent tool for efficient learning.
Students’ Perceptions of the Skills in the Labor Market in the 4th Industrial Revolution
Authors: Zogopoulos Constantine Panayiotis , Raptis Nikolaos
Published: March 2024

The Fourth Industrial Revolution will have a crucial impact on the jobs, the types of skills required to cover them, and the role of Higher Education in obtaining these skills. Among the challenges universities are called upon to face is providing students with the necessary employability skills for their future professional careers. This research aims to investigate the perceptions of students at the University of the Aegean and the University of Patras on the employability skills considered necessary in the future labor market. The research was conducted using a questionnaire answered by 392 students from various faculties of the University of the Aegean and the University of Patras. The results show that participants consider hard skills more important (such as Equipment Selection and troubleshooting) than programming and mathematics. They also consider soft skills (such as active listening and critical thinking) to be more important than negotiation, social perceptiveness, and coordination. In terms of their degree and the skills it offers, the majority consider that they have chosen it for a professional career and that it provides them with the necessary skills for the labor market. However, for the next 10–15 years, they do not consider that their degree will be sufficient regarding the skills requirements for their employability.
El Museo del Departamento Nacional de Minas y Geología, en la Argentina de 1890. Origen y desarrollo de una colección científica
Authors: Galindo Castro Luis Adrián
Published: March 2024

Este trabajo forma parte del Plan Museológico llevado adelante por el Servicio Geológico Minero Argentino (SEGEMAR), con el fin de recuperar y poner en valor una importante colección de rocas, minerales, fósiles, cartografías, fotografías, equipos e instrumentos de exploración, constituida por el Estado argentino a partir de 1890, con la creación del Museo del Departamento Nacional de Minas y Geología. A partir de la revisión de fuentes documentales primarias, se logra describir el origen de este primer Museo, identificando su desenvolvimiento más importante entre 1890 y 1974. Período durante el cual, el área geológica y minera gubernamental logra mantener activo el Museo, con un crecimiento permanente de su colección, debido a la concurrencia de investigadores internacionales, pioneros en la investigación geológica nacional, y a su vez, formadores de los primeros geólogos y geólogas argentinas, estableciendo la primera cátedra de esta especialidad en la Universidad de Buenos Aires.
Prólogo Dossier 5° Jornadas Nacionales de Investigación Cerámica
Authors: Rendtorff Nicolás M.
Published: March 2024

...
Investigar en artes desde la materia y la temperatura. Prácticas pedagógicas en torno a la cerámica expandida
Authors: González Alonso Anabel
Published: March 2024

El presente trabajo se propone reflexionar sobre las aperturas técnicas, conceptuales y metodológicas que propone el concepto de ?Cerámica expandida? cuando investigamos en relación con la materia y la temperatura. Nuestro objeto de estudio se basa en la práctica docente desarrollada en el Seminario de Posgrado ?Relación materia-temperatura? de la Especialización en Cerámica Gráfica Contemporánea del Departamento de Artes Visuales, de la Universidad Nacional de las Artes (UNA). El mismo plantea un espacio donde problematizar el concepto de cerámica en función del desarrollo de la materialidad y su transformación, propone analizar y explorar la composición química de los materiales utilizados y la correlación que sucede entre estos elementos y la temperatura. Entendiendo este vínculo como un elemento fundamental para experimentar y comprender formas de actuar en el proceso cerámico. Para acercar al lector a las experiencias realizadas se incorporan las reflexiones de estudiantes en relación con los siguientes temas: Pasta de papel, Cuerpo-superficie, Bio arte y Pastas autofraguantes. Con un perfil experimental, la propuesta se instala en un eje relacionado con la materialidad, explorando y expandiendo el límite de los materiales cerámicos que han sido utilizados en los ámbitos relacionados a la formación tradicional en el campo de las artes. De este modo la cerámica adquiere una nueva dimensión, ampliamos el concepto disciplinar histórico de la cerámica tradicional y profundizamos en las posibilidades expresivas de una materialidad diversa y contemporánea.
Efectos del solvente en la deposición de películas delgadas de ZnO por nebulización pirolítica sol-gel
Authors: Morinigo Luis , Veveliuk Pablo , Tejerina Matías R.
Published: March 2024

En este trabajo, se analizaron las características de películas de ZnO fabricadas con nebulización pirolítica sol-gel, en términos de la variación de la composición del solvente. Para este propósito, se muestra y discute una caracterización usando imágenes macroscópicas de las películas, difracción de rayos X (XRD) y espectroscopía de transmitancia UV-VIS-NIR. Entre los resultados relevantes se obtuvo que el aumento de la relación agua/etanol está relacionado con un aumento en el espesor de los films. Además, se encontró que el espesor, el área de cobertura y la transparencia de las películas también dependían de la composición del solvente de la solución de partida. Este estudio ayuda a comprender la relación entre un parámetro de crecimiento importante, como lo es la composición de la solución de partida y las características deseadas de las películas de ZnO que son importantes para las aplicaciones tecnológicas.
Pastas elaboradas con cal hidráulica y arcillas calcinadas: análisis de la captación de CO2 ambiental
Authors: Aristarán Luisina , Paulo Cecilia , Tironi Alejandra
Published: March 2024

Durante el proceso de producción de cal hidráulica se liberan emisiones de CO2 a la atmósfera. Por otro lado, en el uso de dicho material como materia prima en pastas y morteros, a partir del contacto de portlandita (CH) y CO2 difundido a través de la estructura, ocurre la reacción de carbonatación bajo la acción del agua. El objetivo de este trabajo es evaluar cómo el reemplazo parcial de cal hidráulica (CalH) por arcillas calcinadas, de diferente reactividad puzolánica en pastas, afecta a la captación de CO2 ambiental. Como materias primas se utilizó CalH y dos tipos de arcillas calcinadas, caolinita calcinada (KC) con mayor actividad puzolánica e illita calcinada (IC) con actividad puzolánica más lenta. Las pastas se elaboraron por triplicado, incorporando de manera individual ambos tipos de arcillas calcinadas en diferentes porcentajes de reemplazo (0 - 50%). Para realizar un análisis comparativo, se prepararon dos grupos de muestras denominadas (i) e (ii), ambos grupos fueron almacenados en cámara húmeda por 28 días y luego de ese período, al grupo (i) se le frenó la hidratación con isopropanol y el grupo (ii) fue expuesto a carbonatación natural durante 1 mes. El seguimiento de la carbonatación en todos los casos fue realizado utilizando distintas técnicas: difracción de rayos X (DRX), espectroscopia infrarroja por transformada de Fourier (FTIR), ensayo termogravimétrico y perfil de carbonatación por fenolftaleína. Se concluye que el agregado de arcilla calcinada como reemplazo parcial de la cal hidráulica en pastas, afecta la captación de CO2 ambiental: si se utiliza IC aumenta la captación; mientras que cuando se utiliza KC, con mayor actividad puzolánica, esta afecta en forma negativa la captación de CO2 ambiental.
Aplicación de rocas ígneas de composición media riolítica procesadas por atrición seca en la producción de materiales cerámicos de alta densidad por colado (vía húmeda). Parte I: Desarrollo Cerámico
Authors: Fuertes Luciano , Correa Agustín F. , Rovere Elizabeth I.
Published: March 2024

El objetivo del presente trabajo es analizar la viabilidad del empleo de áridos específicos (de composición riolítica), molidos por atrición en vía seca, como componente en la obtención de cerámica de gres producida por monococción, para sustituir a las materias primas tradicionales como el cuarzo o feldespato. Para tal fin, se evaluó el proceso de formulación usando una arcilla blanca patrón de composición química definida, empleada industrialmente en Argentina, denominada Tinkar Z, y la vía de conformado a estudiar fue la húmeda. Se evaluó el comportamiento de la arcilla en forma individual, en primera instancia, y luego se evaluaron mezclas definidas a través de ensayos orientativos cerámicos como la plasticidad, velocidad de formación de pared y secado, densificación, contracción, porosidad, y absorción en función del tratamiento térmico.
Aplicación de rocas ígneas de composición media riolítica procesadas por atrición seca en la producción de materiales cerámicos de alta densidad por colado (vía húmeda). Parte II. Optimización de tiempos de molienda
Authors: Correa Agustín , Rovere Elizabeth I. , Fuertes Luciano I. , Sanchez Laura , Bruno Oscar
Published: March 2024

En el presente trabajo se estudió la molienda batch de alta energía en seco de áridos del Río Santa Cruz, Argentina. La molienda de alta energía sobre esta roca tiene por objetivo lograr una adecuada conformación cerámica con una arcilla comercial, se evita así el uso de otros componentes como cuarzo y feldespato. Se procede a un estudio de la cinética de la molienda, basándose en el modelo destructivo total de Kelsall en sus aspectos asintóticos; en particular en el comportamiento a tiempos largos, superiores a 30 minutos en donde el mecanismo de atrición predomina. Se determina que los parámetros de escalamiento adecuados deberían basarse sobre las experiencias de las condiciones obtenidas en las moliendas entre 50 y 60 minutos, ya que se obtienen granulometrías de 27 y 35 % pasante en masa del diámetro de 2 µm.
Elaboración y caracterización tecnológica de agregados porosos a partir de lutitas de la provincia de Buenos Aires, Argentina
Authors: Martinefsky Cecilia , Mocciaro Anabella , Irassar Edhardo Fabián , Tironi Alejandra
Published: March 2024

Los agregados porosos según sus características fisicoquímicas, densidad y resistencia pueden ser utilizados para aislamiento térmico y acústico, como agregado liviano en elementos estructurales prefabricados y hormigón, en aplicaciones geotécnicas, jardinería e hidroponía. En la región de Olavarría, centro de la provincia de Buenos Aires, se cuenta con un amplio stock de lutitas, obtenido del destape de las canteras de caliza utilizada para la elaboración del clinker Portland. Las lutitas son una materia prima potencialmente viable para elaborar agregados porosos, a la vez que se genera una alternativa con valor agregado para las lutitas de la región. El objetivo del trabajo es evaluar la composición mineralógica, las principales propiedades físicas, la estructura de poros y la resistencia mecánica de agregados porosos obtenidos a partir de dos lutitas (L1 y L2), con diferente composición química y mineralógica, utilizando distintos tratamientos térmicos: un calentamiento gradual (G) y uno directo (D) hasta temperaturas máximas de 1150 °C y 1200 °C. Las fases mineralógicas presentes en las lutitas contribuyeron a la formación de fases cristalinas y fase vítrea, necesaria para atrapar los gases y generar porosidad cuando se encuentra en estado líquido viscoso. Considerando las fases cristalinas, se identificó la formación de hematita en todos los agregados sinterizados; la formación de feldespato anortita en la lutita con mayor contenido de calcita (L1) y la formación de una espinela en la lutita con mayor contenido de Fe y Mg (L2). El tipo de tratamiento térmico realizado modifica la porosidad del agregado: cuanto mayor es la porosidad alcanzada, menor es la densidad, pero a su vez disminuye la resistencia a compresión. Para seleccionar el tratamiento adecuado se debe considerar qué propiedad es la determinante de acuerdo a la aplicación tecnológica que tendrá el agregado. Los valores de absorción obtenidos en todos los agregados sinterizados son inferiores al 0,1%. La sinterización y formación de fase vítrea en la superficie exterior explica la baja absorción de los agregados porosos obtenidos. Para aplicaciones en construcción, los agregados no presentarán entonces una variación en el contenido de humedad significativo que deba considerarse en la relación agua/cemento y trabajabilidad. Fue posible sinterizar en el laboratorio agregados porosos con propiedades tecnológicas comparables a los agregados livianos de calidad disponibles en el mercado: los agregados porosos obtenidos a 1200 °C y tratamiento directo (L1 D 1200 y L2 D 1200) presentan diámetro, densidad de partícula y resistencia a compresión similares a Liapor® 6,5 2/10.
El ushnu de El Shincal (Belén, provincia de Catamarca). Una aproximación a la producción y procedencia alfarera a través de caracterizaciones petrográficas
Authors: Cremonte María Beatriz , Couso María Guillermina , López Valeria María del Milagro
Published: March 2024

En este trabajo se presentan los resultados obtenidos del análisis petrográfico de una muestra de pastas cerámicas correspondientes a vasijas de época inca excavadas en el ushnu del sitio arqueológico El Shincal de Quimivil, ubicado en la provincia de Catamarca. Los ushnu son estructuras incaicas emblemáticas construidos en los centros político-administrativos como ejemplos del poder inca en las provincias o wamani del estado. El análisis petrográfico cuali-cuantitativo se aplicó a 33 secciones delgadas correspondientes a los tipos cerámicos Cuzco polícromo, Yavi-Chicha, Inca Pacajes, Inca Negro/Rojo, Alisado, Gris inciso, Ordinario, Belén, Hualfin, Cruz de Malta y Famabalasto. Los resultados permitieron identificar cuatro grupos petrográficos de pastas. Los Grupos A, B y C indican que las vasijas corresponderían a una producción alfarera de carácter local o regional, asignables a distintos tipos cerámicos. Por el contrario, las pastas del Grupo D - recipientes pequeños de estilo Inca Pacajes y Yavi-Chicha - apuntan a una manufactura no local indicando procesos de distribución a larga distancia.
Paisajes de barro: conociendo los usos tradicionales de la arcilla en Antofagasta de la Sierra (Catamarca)
Authors: Pérez Martina , Vidal Aixa , Nieto Vanessa , Román Fernanda , Wachsman Néstor , Pereyra Julieta , Casanova Martín , Farina Sofía , De Salazar Lucía , Gutierrez Victoria , Gallina Isabel
Published: March 2024

El Proyecto de Extensión e Investigación ?Paisajes de barro? propone un acercamiento al uso del barro como materia prima en el Departamento de Antofagasta de la Sierra (Catamarca) desde una perspectiva multidisciplinar y participativa. En el área de investigación, nuestro objetivo recae en conocer la utilización de este material durante la historia reciente y su vigencia en la actualidad. Por ello, junto a las comunidades locales, nuestro equipo de estudiantes y graduados está relevando el patrimonio cultural vinculado al uso del barro, tanto en sus manifestaciones materiales (estructuras arquitectónicas y objetos cerámicos), como en las inmateriales (conocimientos, usos y costumbres vinculados). En los últimos tres años estamos desarrollando actividades participativas en Antofagasta de la Sierra, donde se intercambian saberes propios de estas tecnologías. Sin embargo, no solo nos centramos en la investigación, ya que dichas actividades también están orientadas a documentar y difundir los objetos, estructuras y conocimientos asociados al barro, además de contribuir a su preservación y puesta en valor de manera conjunta. De esta manera, se están recuperando antiguas prácticas, usos y tradiciones, a la vez que se reflexiona sobre las ventajas de estas tecnologías para las sociedades antofagasteñas actuales, tanto desde el punto de vista cultural como del de la economía sustentable y el buen vivir.
Aproximación a la cerámica del Parque Nacional Talampaya
Authors: Vidal Aixa , Ferraro Lorena
Published: March 2024

Si bien las investigaciones sobre el patrimonio arqueológico del Parque Nacional Talampaya (PNTA) se originan en la segunda mitad del siglo pasado, la cerámica ha sido una materialidad ausente en los trabajos sobre el área, en parte por su escasez en las excavaciones y prospecciones llevadas a cabo hasta el momento. Sin embargo, es importante dar a conocer el repertorio cerámico localizado dentro del Parque, aunque se trate de una muestra pequeña, ya que ello permitirá avanzar en problemáticas irresueltas en esta zona como el tipo de ocupación que dominó dentro y fuera del valle del río Talampaya y su asignación cronológica. El conjunto analizado posee materiales significativos que indican la presencia de grupos humanos en la región en momentos adscribibles al desarrollo de los estilos Ciénaga y Sanagasta-Angualasto, con bastante uniformidad formal y tecnológica. Asimismo, el estudio de la distribución de los hallazgos señala que el PNTA tiene un alto potencial de este tipo de materiales a lo largo y ancho de su superficie. A la espera de hallazgos de un mayor volumen de material significativo, el presente estudio presenta la situación de la cerámica localizada hasta el momento en el valle del río Talampaya y alrededores y su vinculación cronológica con los sitios arqueológicos.
Manual de procedimientos para el registro fotográfico de las colecciones de la División Arqueología del Museo de La Plata
Authors: Jakel Andres Alfredo
Published: March 2024

El presente trabajo apunta a proporcionar una guía para llevar a cabo los procedimientos implicados en el registro fotográfico de las colecciones de la División de Arqueología del Museo de La Plata (Universidad Nacional de La Plata, Argentina). En el mismo se detallan las pautas y parámetros generales para el correcto desarrollo de dicha actividad, apuntando a personal previamente capacitado y/o informado, de forma tal de garantizar la calidad de los resultados. Asimismo, este manual posee carácter de protocolo, apuntando a estandarizar las normas formales que deben cumplir las imágenes obtenidas, en función de los requerimientos que implica la contribución a un repositorio institucional y su consulta pública.
A new way of social interaction for educational purposes in architecture design studios during the pandemic
Authors: Tafahomi Rahman
Published: March 2024

COVID-19 has challenged educational systems in whole parts of the world, including convenient courses and programs such as architecture. The architecture program is designed based on the design studios that deliver major parts of the activities in the program, such as design productions, project presentations, and receiving comments on the design activities from both instructors and juries. To test the students' satisfaction level with social interactions in design studio activities, a five-scale questionnaire was designed, and through Google Forms, the results were analyzed in SPSS. The findings reveal that communication, social interaction, and design activities are significant for the students. The students demonstrate overall satisfaction with the quality of the course delivery. However, the detailed design illustrates that students and instructors adopted an adapted way to the condition to reduce the risk by minimizing the group work and increasing the individual desk crits. This result shows that teamwork and peer learning were reduced during the pandemic.
Challenges in protecting Rohingya refugees: Pathways for international intervention
Authors: Islam Md Syful , Muhıbbullah Md , Ahmed Zobayer
Published: March 2024

This study examines the efficacy of international legal frameworks in preventing human rights abuses against the Rohingya in Myanmar. Despite global human rights conventions, the ongoing crisis highlights a stark disconnect between international norms and their enforcement. The study scrutinizes the limitations of key international bodies, particularly the United Nations Security Council (UNSC), and the challenges posed by national sovereignty and geopolitical dynamics that hinder effective human rights protection. Utilizing qualitative analysis of existing literature, this research identifies the systemic shortcomings within international mechanisms and the inadequate application of the Responsibility to Protect (R2P) principle in Myanmar's context. The findings suggest an urgent need for reform within international legal frameworks and the implementation of more effective measures to uphold human rights universally and ensure the safeguarding of vulnerable groups like the Rohingya. The paper concludes with recommendations to strengthen international legal measures, increased accountability for human rights violators, and a more assertive global stance against violations, aiming to bridge the gap between international legal commitments and real-world implementation.
Challenges Facing Financial Planners Advising Ageing Clients with Diminished Financial Capacity
Authors: Teale John
Published: March 2024

Old age can be associated with declining cognitive abilities and the development of Alzheimer’s disease and dementia. These conditions generally result in a reduced ability to make sound financial decisions, that is, a reduced financial capacity. This reduction is an important issue for financial planners, but reduced financial capacity is often difficult to detect. Moreover, severe legal consequences can result for financial planners who provide what is later deemed to be inappropriate financial advice to clients with these conditions. Consequently, this article aims to help financial planners understand this condition and the actions to take when it is detected.
Just How Safe are ‘Safe Withdrawal Rates’ in Retirement?
Authors: Drew Michael E. , Walk Adam N.
Published: March 2024

This study considers one of the cornerstone questions in the retirement income debate; namely, what’s a safe withdrawal rate for retirement? This question is of particular importance to Australia’s superannuation system, which is characterised by having compulsory contributions during the retirement saving (or accumulation) phase, but no compulsory requirement to annuitise lump sums at the commencement of the retirement income (or distribution/decumulation) phase. As a result, many retirees face a classic asset–liability mismatch, the need to fund relatively short- and medium-term retirement spending needs with a long-term investment strategy. This study tests one of the most popular heuristics that have arisen from the safe withdrawal debate, specifically the 4% rule. Our findings question the validity of this approach using historical international return data.
The Conflict Between Financial Decision Making and Indigenous Australian Culture
Authors: Wagland Suzanne , Taylor Sharon
Published: March 2024

Financial literacy or financial capability is widely agreed as being funda mental for financial wellbeing (Clitheroe 2004; Worthington 2008). This is particularly relevant in 21st century Australia, where the government’s policy of self-funded retirement is a critically important issue. Previous research undertaken by the Australian and New Zealand Banking Group (ANZ) in Australia, suggests when it comes to financial matters, a large proportion of the population have insufficient levels of the financial knowledge and skills needed to manage their finances into the future. Australia’s Indigenous population has been identified in the ANZ surveys as one of the groups, most at risk. Whilst education programs have been put in place to address these findings, subsequent studies in relation to Australians Indigenous population continues to demonstrate the poorest levels of financial literacy, with little to no identifiable improvement in measured skills over successive studies (ANZ 2003; 2005; 2008; 2011 and 2014).

Generally, traditional Indigenous culture is dominated by family and tribe rather than personal wealth gratification; in particular these cultural values relating to money are in direct contrast to western societal values. Our research paper, the first in a series, raises two questions. Firstly is the conflict between western and Indigenous culture an overlooked factor and might go some way to explaining the poor financial literacy levels among Australia’s Indigenous population. Secondly, this paper raises questions that were highlighted in the existing literature as to the content and design of currently offered educational programs that are targeted at Indigenous Australians.
A (W)hole in the Financial Budget: Budgeting’s Influence on the Effective Use of Credit Card Debt in Australia
Authors: Ajzerle Sanja , Brimble Mark , Freudenberg Brett
Published: March 2024

Credit card debt has become intrinsic to the way of life and are accepted as part of modern day living. This paper examines to what extent personal budgeting can influence the effective use of Australian credit card debt. The findings suggest that the most effective credit card debtors are those who consider they do not need a budget due to low income and expenses followed by those without a budget but often earning in excess of $180,000 p.a. Participants with the lowest effective use of credit card debt are those who do have a budget but rarely follow it.
Understanding the Relationship Between Fund Flows and Past Performance in Australian Managed Funds
Authors: Paramati Sudharshan Reddy , Mo Di , Gupta Rakesh
Published: March 2024

This study aims to understand the prevailing literature which examined the effect of past performance of funds, risk of the funds, choice of fund legislation and the global financial crisis on the fund flows among the different asset classes in Australia. The empirical findings of previous studies document that retail funds are more sensitive to the past performance of funds than those of wholesale segment. These studies further argue that risk of the funds seems to be ineffective in explaining the fund flows. Findings also report that the choice of fund legislation has resulted in attracting more funds into the managed funds. Finally, in the post global financial crisis period, there is a significant inflow of funds into the managed and equity funds.
Examining the Legitimacy of the Current ‘Authorised Representative’ Licensing Model
Authors: McInnes Angelique , Ahmed Abdullahi D.
Published: March 2024

Legitimacy of licensing individual financial advisers through third party licensees is currently debated by the media and in practice, with unsubstantiated claims evident in the majority of commentaries. A sticking point is the lack of a theoretical framework within financial planning theory to obtain substantiated evidence. We rectify this by applying Suchman’s legitimacy theoretical framework to the current authorised representative licensing model to collect validated evidence in future empirical research. This not only advances financial planning theory, but raises further questions for future empirical research, which should provide policymakers data required to make evidence-based decisions around licensing advisers.
Financial Literacy Education with Aboriginal People: The Importance of Culture and Context
Authors: Blue Levon
Published: March 2024

Learning about effective ways to manage money is a 21st century skill and the focus of financial literacy education (FLE) initiatives globally. Individuals deemed to have lower levels of financial literacy are often the targets of financial literacy workshops/programs. In this research paper the key outcomes are identified from a qualitative study that explored the FLE practices with an Aboriginal community in Canada (that the author is a member of). This includes conceptualising what influences financial decision-making and the role of culture and context in financial literacy education with a Community instead of for a Community. Discussed is the importance of adopting a praxis approach to FLE and integrating site based education development with Community members instead of imposing education on individuals. Last, outlined in this paper is how the above findings may offer insights for financial educators and/or planners participating in financial literacy education and engaging with Aboriginal clients.
Industry Demand for Financial Planning Graduates
Authors: Johnson Dianne , Brimble Mark , Zanetti Ric
Published: March 2024

The financial planning industry is evolving into a profession, underpinned by a range of regulatory, professional and market changes. A key component of the challenge to professionalism is to attract high calibre new entrants to financial planning degree programs and into the emerging profession. This paper details results of a survey of 191 financial planning practices on their expectations and plans for new entrants. The study finds that there is growing interest in the graduate pathways and methods of obtaining access to a talent pool. In addition, the majority of firms indicated that they would like to grow their staff numbers in the five years (to 2019) and nearly two thirds indicated that they will be seeking graduates for these growth positions. This paper will explore the demand for new entrants, particularly university graduates, into financial planning.
Investment Risk Profiling: Lessons from Psychology
Authors: Hunt Katherine
Published: March 2024

The risk profiling process is one of the most under-utilised assets the financial planning profession has at its disposal. This paper presents a novel approach to risk profiling, which is based on the application of the psychology literature to develop an empirical risk profiling system. This paper provides a theoretical foundation for considering the risk profiling system by applying the literature from self-control, optimism, financial literacy, and risk tolerance, to a risk profiling system. This paper discusses how understanding client levels of self-control can impact ‘stickability’ to a financial plan, and how prior knowledge of optimism, financial literacy and risk tolerance can enable financial planners to have more engaging discussions and design more tailored financial plans for their clients. This is the first stage of the research project, with the second stage the development and testing of a risk profiling system based on the theory within this paper.
The Time Diversification Puzzle: A Survey
Authors: Bianchi Robert J. , Drew Michael E. , Walk Adam N.
Published: March 2024

Since Samuelson’s (1969) theoretical proof that risk and time are unrelated, a half century of debate and controversy has ensued, leaving time diversification as one of the most enduring puzzles of modern finance. The most conspicuous aspect of the debate is the questionable assumptions that underlie much of the analysis. Thus we are left with an unsatisfying debate conducted in a paradigm where terminal wealth is usually a function only of returns, and where time-weighted measures are assumed to adequately evaluate performance. This paper reviews the major streams in the time diversification literature and argues that more realistic analysis using defensible assumptions is likely to lead to better prescriptions for improved retirement investing.