bluuebunny/crossref_metadata_2025 huggingface dataset:
A study on constructing arbitrary directivity of sound sources by fitting the spherical harmonics coefficients
Authors: Kato Maki , Iwami Takahiro , Omoto Akira
Published: December 2023

We attempt to obtain room impulse responses by sound sources with arbitrary directional characteristics by directivity synthesis in the spherical harmonic domain. For this purpose, we use directional room impulse responses measured with a general loudspeaker pointed in multiple directions.
Specifically, we attempt to synthesize the directivity from measurements in 24 directions, including the horizontal and elevation angles of 45 degrees each and the case where the loudspeaker was pointed directly above and below. This enables us to construct an omnidirectional sound source
that strictly meets ISO standards or a more flexible directional that reflects musical instruments' directivity. For the omnidirectional case, we are also considering how much we can reduce the number of measurement directions and propose a practical index. In addition, because the proposed
method uses a commercially available coaxial loudspeaker with enough sound quality and performs frequency spectrum correction at the same time as directional synthesis, it is possible to synthesize room impulse responses that can be used for auralization.
A review of recent situation and technical issues of aircraft noise monitoring
Authors: Makino Koichi , Shinohara Naoaki
Published: December 2023

More than 13 years have passed since the ISO 20906:2009 for unattended monitoring of aircraft sound was published. In recent year, data processing technology has rapidly advanced. In order to consider whether there is any discrepancy between the contents of ISO 20906 and the recent
situation of aircraft noise monitoring, published information on aircraft noise monitoring and organized the actual situation was collected. In Japan, aircraft noise measurements has been carried out around airports and airfields nationwide as the achievement status survey of "Environmental
Quality Standards for Aircraft Noise." Unattended monitoring through the year or short-term measurements have been carried out by local authorities every year. Annual report of the achievement status survey of Environmental Quality Standards for Aircraft Noise has been published every
year. On the other, some airport authorities and Japan Ministry of Defense conduct aircraft noise monitoring around airports or airfields and publish the measurement results. Additionally, many overseas airport authorities have been conducting aircraft noise monitoring and publishing the measurement
results. This paper introduces the recent status and technical issues of aircraft noise monitoring in Japan and other region. In addition, it discusses on some discrepancy between ISO 20906 and the recent situation of aircraft noise monitoring.
Comparison in sound energy and spatial properties between direct and flanking transmitted floor impact sound in apartment house
Authors: Eom Chunwon , Ryu Jongkwan
Published: December 2023

In apartment houses, floor impact sound is transmitted to several floors above and below, so many conflicts arise in Korea due to the misunderstanding of the location of the noise source. From the point of view of the residents, not only the sound pressure level but also the spatial
and temporal characteristics of the transmission path of the impact sound may differ according to the floor where the floor impact sound is generated. In this study, direct and flanking transmitted floor impact were compared in terms of energy and spatial factors. The rubber ball impact sounds
transmitted from the upper 1F, upper 2F, and lower 1F in four apartments was recorded and analyzed. As a result of the analysis, there were differences in the spectrum of the impact sound transmitted from each floor, and the maximum difference was shown in the 100 Hz band. Ratio of the energy
of the early sound (0~30 ms) to the total sound (2 s) was found that the direct transmitted impact sound was about 0.13~0.22 higher than the flanking transmitted impact sound. In addition, in the case of IACC (Inter-aural cross correlation coefficient) transmitted from each floor, the direct
transmitted impact sound was 0.11 to 0.32 higher than the flanking transmitted impact sound. According to the results of the investigation, energy ratio of early sound energy to total energy is expected that the upper floor as floor impact location can be identified if considered together
with the sound pressure level.
Emotional response to natural and artificial sound and indoor sound scape in residential space
Authors: Kim Dokyeong , Lee Songmi , Ryu Jongkwan
Published: December 2023

The demand for effective ways to alleviate stress caused by residential noise is growing. To better understand individual preferences and strategies for reducing noise-induced stress, a laboratory experiment was conducted to classify emotional responses to natural and artificial sounds
according to individual characteristics. The survey consisted of two sessions conducted after collecting individual characteristics from participants. Session 1 evaluated preference for sound sources and emotional responses to sound presented from headphone and woofer by using the self-assessment
manikin (SAM). Session 2 utilized to assess indoor soundscape. The results showed that both valence and arousal were highly correlated with sound preference, with higher valence and lower arousal tending to be more preferred. In the case of indoor soundscape assessment, water sounds showed
significant differences between PC1 and PC2 on the comfortable-annoying axis and the intrusive-uncontrolled axis.
EEG responses and mental health restoration according to VR soundscape experience
Authors: Lee Yunjin , Lee Haram , Jeon Jin Yong , Ahn Donghyun , Kim June Sic
Published: December 2023

This study investigates the neural correlates of restorative responses to urban and natural soundscapes, utilizing Heart Rate Variability (HRV) and Electroencephalogram (EEG) measurements. Participants were exposed to various environments through Virtual Reality (VR), and significant
differences were observed in the interactions within specific regions of the Visual and Dorsal Attention Networks. In the riverside setting, the restoration group demonstrated heightened perceptual engagement and more efficient attentional control. Additionally, a significant increase in global
efficiency, a measure of brain network efficiency, was observed in the restoration group during soundscape exposure. These findings contribute to our understanding of the neural processes associated with the restorative effects of soundscapes, with implications for urban health and well-being
strategies.
Practical noise measurement method for confirmation of effectiveness of sound insulation in residential houses around airports
Authors: Shimoyama Koji , Shinohara Naoaki , Nakazawa Toshiyasu , Hanaka Kazuyuki
Published: December 2023

In Japan, at airports with significant noise impact, soundproofing for dwellings is subsidized by the airport administrator in accordance with the law requiring noise mitigation. The compensation areas and zone-types are indicated according to noise impact. For each zone-type, the planned
quantity of sound insulation to be achieved through soundproofing and the standard construction specifications are determined. Although noise measurement is not required upon completion of the soundproofing, it may be conducted to confirm the sound insulation effectiveness, if necessary. Methods
for the measurement of sound insulation characteristics of the buildings are specified in Japanese standards (JIS), but these methods use artificial noise sources from speakers, which require many manpower and sound level meters or noise source equipment, and also cannot directly determine
the quantity of sound insulation against aircraft noise. Thus, in order to examine the practical simplified method for noise measurement, we carried out measurements using aircraft noise in or around a dwelling, in parallel with the method required by the JIS standard. From the results, this
paper reports the method by using even in a smaller number of microphones with the appropriate placement, to determine the quantity of sound insulation against aircraft noise in a dwelling.
Psychophysiological responses to changes in the acoustic design of concert halls
Authors: Santika Beta Bayu , Lee Haram , Lee Yunjin , Jeon Jin Yong
Published: December 2023

This study examined the psychophysiological responses of listeners to changes in the acoustic environment design of a concert hall. The research focused on both general audiences and experts in order to analyze the design of the acoustic environment based on their psychological and
physiological aspects. The study involved the measurement of architectural acoustics of the hall and sound source produced through auralization based on the impulse responses collected earlier and the acoustical parameters gathered for the analysis. Changes were implemented through a refurbishment
condition by the alterations to finishing materials. The objective sound environment improvement was evaluated by analyzing the electroencephalogram response in relation to the highly evaluated acoustic environment of the hall and the sound condition from the existing acoustic environment.
The study found significant changes in the area related to emotion, preference for the acoustic environment, fatigue through the HRV parameter, and EEG. The results confirmed that psychophysiological responses to changes in the acoustical design provide an objective evidence of better concert
hall acoustics.
Degradation of speech reception performance in competing sounds in middle-aged adults and its factor
Authors: Yuasa Mai , Otsuka Sho , Nakagawa Seiji
Published: December 2023

Speech reception in the presence of competing sounds declines in middle age. Here we examined how energetic and informational masking degrades speech reception in middle-aged adults, and further explored how the performance degradation depends on temporal processing efficiency and working
memory capacity. We measured the intelligibility of a target phrase masked by noise or a competing masker phrase, which was spoken by the same talker, same-sex talker, or different-sex talker. Temporal processing was assessed by interaural phase difference thresholds and frequency modulation
detection limen. Working memory capacity was assessed by the listening span test. Speech reception performance was lower in middle-aged adults than young adults, regardless of the type of disturbing sounds. The performance differences between the same-talker and different-sex talker conditions,
which reflects the effects of informational masking, was larger in middle-aged adults. These results suggest that both energetic and informational masking contributes to the degradation of speech reception in middle-aged adults. The correlation analysis for the middle-aged adults further revealed
that the contribution of working memory capacity was larger in the same-talker condition, where informational masking was strong, whereas the contribution of temporal processing efficiency was larger in the noise condition, where energetic masking was dominant.
Study of soundscapes in heritage festivals: the "Fallas" of Valencia, "Festa de la Mare de Déu d'Algemesí" and the "Moros y Cristianos" festival of Villena (Alicante)
Authors: Gimenez-Perez Alicia , Arana-Burgui Miguel , Cibrian Rosa , Cerda-Jorda Salvador , Segura-Garcia Jaume
Published: December 2023

The conservation of the Intangible Cultural Sound Heritage of Humanity is one of the most important assets of a people as it is linked to its culture and history. Its evaluation by means of objective acoustic and psycho-acoustic parameters makes it possible to characterise these environments
from objective, aesthetic and emotional criteria. The description of the soundscape is governed by the ISO 12913 standard. The procedure for assessing soundscapes in outdoor sites is carried out with sound-walks. In this work, we have evaluated two different soundscapes in festivities in Spain:
"Fallas" in Valencia, "Festa de la Mare de Déu" in Algemesí and "Moros y Cristianos" in Villena. This evaluation has been carried out by recording the ambient sound of these festivities while walking among people. From the recordings, we calculated
different psychoacoustic metrics (i.e. loudness, sharpness, roughness, fluctuation stress and tonality) and evaluated them with Zwicker models. In addition, a subjective survey was conducted to compare the subjective response with the psychoacoustic metrics.
Effects of expectation on auditory impression of car door-closing sounds
Authors: Morita Hiroaki , Takada Masayuki , Maruyama Hiroki
Published: December 2023

If consumers have preconceptions or expectations about a product, these may influence their evaluation of the product sound. In this study, a psychoacoustic experiment was conducted to investigate the effect of preconception about the product on the perceived quality of the product
sound. First, participants were presented with information about three different classes of cars (kei car, economy car and luxury car), including pictures, prices and displacements, and were asked to imagine the door-closing sound of each class of car, and evaluate the auditory imagery of
door-closing sounds recalled from the three types of car information using the semantic differentials method. Next, five door-closing sounds were presented, assuming that they were the sounds of each car type. Participants rated perceived quality of stimuli using the same method. As a result,
the stimulus of a kei car presented as the door-closing sound of a luxury car was rated as more luxurious than the same stimulus presented as that of a kei car. Similar results were obtained for the stimulus of a luxury car. These results indicate the effect of preconceptions (or expectations)
on the auditory impression of the door-closing sounds.
Relationship between speech perception and cortical temporal information processing in noise
Authors: Saikan Shigeki , Otsuka Sho , Nakagawa Seiji
Published: December 2023

It has been known for many years that some listeners with normal hearing report difficulties in speech reception under the presence of competing sounds. The symptom is called hidden hearing loss. For the elucidation of the mechanism of hidden hearing loss, we examined the relationship
between speech-in-noise reception performance and cortical temporal information processing. It has been reported that delta and theta oscillations were phase-locked to speech envelopes, and the synchronization depends on the intelligibility of degraded synthesized speech. However, it remains
unclear whether and how the slow oscillations reflect speech-in-noise reception performances. We measured slow-rate (below 8 Hz) electroencephalogram (EEG) oscillations during speech reception under noise with different signal-to-noise ratio (-5 dB to -14 dB). In a control condition, EEG oscillations
were measured by the same stimuli, but the participants watched a self-selected movie with subtitles, ignoring the stimuli. The power of the EEG oscillations during speech reception was stronger than those while participants ignored the stimuli. However, we did not find any dependences of
the slow EEG oscillations on speech intelligibility changes associated with varying SNR. The enhancement of slow oscillations can be triggered by attention but is not likely to reflect listening effort driven by noise contamination.
Toward the symbiosis and co-prosperity between Narita International Airport and the local community
Authors: TAKEDA Daisaku , KURODA Hirokatsu
Published: December 2023

Narita International Airport has been regarding its symbiosis measures, airport development, and regional development as a trinity and various efforts have been made. In addition, since the opening of the airport, Narita International Airport Corporation(NAA) has taken detailed measures
from various angles to address the problems stem from being an inland airport. While environmental measures and regional development can be mentioned as a part of them, noise control, air quality conservation, water quality conservation and natural environmental conservation and agricultural
revitalization are mentioned as a part of the environmental measures. Among them, aircraft noise especially has the greatest impact on the area surrounding the airport. Currently, Narita International Airport is working toward "Further capacity enhancement of Narita Airport", and
will be able to increase the annual departure and arrival capacity from the current 300,000 to 500,000 times by constructing Runway C, as well as the extension of Runway B. This report describes what kind of initiatives and measures Narita International Airport takes in collaboration with
the local municipalities and residents based on the basic idea that "Airport development is regional community development".
Study on the effect of semi-active control method matching for truck cab and seat suspension on driver comfort
Authors: Zhang Xiaofeng , Liu Xiandong , Sun Canhang
Published: December 2023

This paper proposes a novel solution for addressing the challenges of whole-body vibrations in the heavy truck industry. Despite the substantial growth in this industry, excessive fatigue, back pain, neck pain, and other illnesses caused by rough and bumpy roads remain a major concern
for truck drivers. To mitigate these issues, this study develops a comprehensive vibration reduction system based on a near-zero stiffness seat suspension system and a semi-active ON-OFF damping control system for the cab and seat. The study also evaluates the sensitivity of seat and cab suspension
to vibration comfort by developing a nonlinear vibration system mathematical model. Simulation analysis results demonstrate that the proposed system can significantly reduce whole-body vibration experienced by the driver, potentially enhancing driver comfort and reducing the risk of illness
and injury. However, further experimental validation and optimization are needed to fully evaluate the system's effectiveness and feasibility in practice.
Acoustics and psychoacoustics study of fireworks displays in two different environments: 'Fallas' in Valencia and 'Sanfermines' in Pamplona (Spain).
Authors: Arana Miguel , Gimenez Alicia , Cibrian Rosa , Cerda-Jorda Salvador , Segura-Garcia Jaume
Published: December 2023

The different representative manifestations of the culture and traditions constitute the cultural heritage of a people. The globally extended fireworks displays are the visual and sound manifestations of traditions associated with popular culture that must be preserved. The visual component
of the castle is not excessively different from one culture to another, but the sound component shows great differences, from the taste for sound power to the search for a practical disappearance of the sound that accompanies it, in direct relation to the cultural component. This paper presents
a study of the different soundscapes represented by pyrotechnic fireworks in two traditional festivities in Spain. This paper presents the study carried out on the different soundscapes represented by various fireworks during two traditional festivities in Spain, both UNESCO World Heritage
Sites, the Valencia "Fallas" and the Pamplona "Sanfermines", and following the ISO 12913 standard guidelines. Numerous recordings were made for the calculation of psychoacoustic parameters in accordance with the Zwicker models. The similarities and differences of the same
event in different locations have been analyzed. Finally, the results of the psychoacoustic parameters have been compared with the subjective responses.
How streetscape affects subjective responses regarding acoustic comfort: an empirical study based on pedestrian environments with traffic noise
Authors: Ren Xinxin , Li Qi , Wang Qiran , Yuan Minmin , Shao Shegang
Published: December 2023

How streetscape affects subjective responses regarding acoustic comfort of pedestrian streets in traffic noise environments were examined through an experimental study that considered a multifunctional audio-visual environment with no/low, medium, and high street greenery, dominated
by road traffic sound. The results showed that the differences in the acoustic comfort evaluations without and with medium or high greenery were statistically significant. The differences in the acoustic comfort evaluations among streetscapes with different environmental functions were also
statistically significant. However, sound levels were the most significant factor affecting acoustic comfort when road traffic at 50-70 dBA was predominantly heard, to a lesser extent, the visible street greenery and environmental functions. Based on the negative linear relationships between
sound levels and acoustic comfort evaluations for no/low, medium, and high greenery conditions, the evaluations affected by greenery increased with the increase in road traffic sound levels in transportation environments with accessing and transportation transfer functions, whereas those influenced
by either high or medium greenery in leisure environments with resting and catering functions tended to decrease gradually.
Application of Accelerated H-Matrix Boundary Element Methods to Predict Exterior eVTOL Acoustics
Authors: Musser Chadwyck T. , Hadjit Rabah , Calloni Massimiliano , Thor Weimin , Tsukada Taiki
Published: December 2023

The development of Advanced Air Mobility vehicles such as eVTOLs presents unique challenges - both community noise and vehicle interior noise must meet targets for level and character of sound for a vehicle to be commercially viable. Community noise entirely depends on, and interior
noise strongly depends on the exterior noise sources generated by the vehicle propulsion. To predict community and interior noise with models which can be used to explore improvements to meet noise targets, the exterior noise field from the vehicle propulsion must be captured with sufficient
accuracy. Boundary Element Methods (BEM) have good capabilities for predicting vehicle exterior acoustic propagation, but standard BEM is challenged to predict necessary high frequencies due to small mesh size and computational limitations. Accelerated or reduced methods such as H-Matrix BEM
approach can be used to increase the prediction upper frequency limit, improve calculation time, or reduce memory consumption with minimal loss of accuracy. This allows community noise to be predicted and for generation of exterior field loads on the vehicle structure to predict interior noise
and design treatments. The processes and improvements offered by H-Matrix BEM in conjunction with and as an alternative to other acoustic simulation methods are discussed and presented.
Engineering process for eVTOLs interior sound predictions
Authors: Hadjit Rabah , Thor Weimin , Musser Chadwyck , Tsukada Taiki , Calloni Massimiliano
Published: December 2023

Urban Air Mobility (UAM) is quickly developing with the objective to transport passengers and cargos at lower altitudes in urban areas using automated aircrafts. Noise is one of the important challenges facing engineers developing these aircrafts as they will be operating in cities
and are thus subjected to noise regulations. In addition, customers will be expecting similar interior noise performance as in luxury automotive vehicles. This paper presents an engineering process developed to predict the acoustic performance inside Electric Vertical Take-off and Landing
(eVTOL) aircrafts. The process starts with Computational Fluid Dynamics (CFD) simulations to calculate the noise sources generated by the propellers. A Boundary Element Model (BEM) is then used to propagate these sources around the aircraft and calculate the pressure distribution on the fuselage
exterior, which is then applied, in the last step, as excitation in a Statistical Energy Analysis (SEA) model to predict the interior noise. The paper uses a demonstrator model to illustrate the process and results. This process is now available to support engineers when optimizing their eVTOL
design for costs, weight and interior noise performance without the need for physical prototypes.
Numerical Investigation on the Natural Frequency of RC Slab Reinforced with Cambered Steel Beam for Reducing Heavy-Weight Impact Noise
Authors: Lee Sang-Yun , Kim TaeSoo , Lee Sungchan , Ha Sang-su
Published: December 2023

In an apartment building, inter-floor noise occurs due to the residents' movements. The floor impact noises are divided into light and heavy-weight impact sounds depending on the impact source. This study proposed cambered steel beam reinforcement technology installed under floor slab
to reduce heavy-weight impact noise. The beam for stiffness reinforcement is supported by both side of the walls in the ceiling structure, and it reduces inter-floor noise by applying upward force to the bottom surface of the slab and controlling the slab vibration characteristics. In order
to verify the effectiveness of the proposed technology and investigate the natural frequency of the floor, finite element analysis model was developed for the 84m2 type apartment plan with bearing wall structure. From the eigenvalue analysis, it is known that the first natural frequency increased
by 0.37~12.67% depending on the cross-section size of the cambered steel beam. Based on the first natural frequency, as a result of evaluating the vibration standards of residential buildings presented in DIN 4150-2, the vibration characteristics of the slab were improved by reducing the vibration
value KB by up to 75.20%. Therefore, this study indicated that in an apartment building reinforced with cambered steel beams, inter-floor noise caused by heavy-weight impact sound was reduced.
Percepção ambiental de moradores da zona de amortecimento do Parque Estadual das Sete Passagens na Bahia
Authors: Coutinho Janete Belitardo , Freitas Rômulo Magno Oliveira de , Santos Delfran Batista dos
Published: December 2023

Investigar percepção ambiental é instrumento para construção de gestões ambientalmente eficientes. Esta pesquisa objetivou verificar as percepções ambientais de moradores de comunidades rurais inseridas na zona de amortecimento do Parque Estadual das Sete Passagens. Foram realizadas 87 entrevistas semiestruturadas com representantes familiares maiores de 18 anos, com prévia autorização, escolhidos de maneira aleatória, através de amostragem probabilística com grau de confiança de 95%. Foram diagnosticadas à não execução de estratégias de aproximação comunidade x parque, já traçadas no plano de manejo, necessidade da Educação Ambiental e execução dos objetivos e estratégias já prescritas no plano de manejo.
Política das alianças afetivas: contribuições das cosmologias ameríndias de Ailton Krenak para uma Educação Ambiental decolonial
Authors: Inocêncio Adalberto Ferdnando
Published: December 2023

O objetivo central deste artigo é estabelecer relações entre as cartografias desenvolvidas na obra de Ailton Krenak com fundamentos filosóficos capazes de orientar práticas em EA. Inspirando-se nas noções de devir e alianças afetivas, desenvolvidas pelo ameríndio brasileiro, reivindica-se a dimensão selvagem dos povos da floresta aos saberes e às práticas educativas, propondo um redirecionamento sensível da percepção como crítica aos modelos importados do Ocidente e, também, como modos outros de se implicar e ser implicado pelos demais entes, o que culmina em modos de fazer política não mais orientados no binarismo moderno desagregador de entes humanos e não humanos.
Percepção e Educação Ambiental do Parque Distrital Boca da Mata (DF)
Authors: Gondim Martaneres , França Andrea Maria da Silva
Published: December 2023

A área foco desta pesquisa é o Parque Distrital Boca da Mata, localizado no Distrito Federal, criado para conservar as nascentes do córrego Taguatinga e os campos de murundus. Participaram da pesquisa 35 alunos, com o intuito de avaliar a percepção ambiental dos alunos do Ensino Fundamental e do terceiro ano do Ensino Médio, antes e após atividades de Educação Ambiental. Os dados foram submetidos ao software IRAMUTEQ e expressos por fluxogramas de similitude e de nuvem de palavras. Concluiu-se que as ações de Educação Ambiental foram importantes para a modificação da percepção ambiental inicial em relação à final. Pode ser observado também que é válida a utilização de mais de uma estratégia de Educação Ambiental com os alunos.
Como estão sendo produzidas as cartilhas em Educação Ambiental no Brasil?
Authors: Gonçalves Janaína Pinheiro , Monteiro-Alves Raynon Joel , Pereira José Alex Batista
Published: December 2023

Este estudo reportou a produção de cartilhas em Educação Ambiental (EA) no Brasil a partir de uma busca por artigos científicos em português e inglês no Scielo e no Google Acadêmico, durante o período de 2010 a 2022. Nesse contexto, foram selecionados 29 artigos e suas respectivas cartilhas, as quais abordavam temas sobre resíduos sólidos, problemas socioambientais e fauna. Evidencia-se que as cartilhas foram elaboradas, sobretudo, em formato impresso, por meio de PowerPoint, Word ou CANVA, mediante pesquisas de campo in loco e possuíam, principalmente, finalidade informativa. Em 46,5% dos casos, houve a aplicação da cartilha como ferramenta pedagógica ao público-alvo. Diante do exposto, as cartilhas em EA configuram-se como uma abordagem viável e aplicável e possuem a função de informar e orientar  sobre fenômenos socioambientais, além de serem importantes ferramentas de EA, Popularização e o ensino de Ciência.
Educação Ambiental e Resíduos Sólidos
Authors: Silva Fredson Pereira da , Viana Ranniclebia Kelly Rodrigues , Silva Patrícia Barbosa da
Published: December 2023

A Educação Ambiental com os discentes contribui para o despertar da consciência destes sobre a importância do meio ambiente e de sua conservação. O objetivo nesse estudo foi descrever a proposta da Educação Ambiental tendo os resíduos sólidos como tema interdisciplinar. A metodologia adotada nessa pesquisa teve como caráter qualitativo, do tipo levantamento bibliográfico, no qual é apresentado um estudo com base em alguns trabalhos relacionados à proposta da Educação Ambiental e resíduos sólidos. Desenvolver um tema transversal de interesse mundial, provoca no aluno a capacidade de pensar ecologicamente e socialmente, fazendo com que o mesmo possa ter a possibilidade de transmitir o conhecimento a outras partes envolvidas, como a família e a comunidade que está inserido.
Escolas públicas sustentáveis: um estudo de caso em Portalegre (RN)
Authors: Lucas Lizandra Evylyn Freitas , Torres Maria Betânia Ribeiro , Santos Enaira Liany Bezerra dos
Published: December 2023

Este trabalho teve como objetivo investigar práticas e ecotécnicas com vistas à adequação das escolas públicas de Portalegre (RN), à proposta das Escolas Sustentáveis (ES). Foi realizado um grupo focal com 21 atores de escolas públicas, sendo 14 estudantes e 7 professores, observações de campo e visitas técnicas nas escolas. A adequação das escolas constatou-se como importante para a formação cidadã ambiental. Os projetos e práticas, desenvolvidos no momento da pesquisa buscavam a resolução de problemas e abrangiam a comunidade do entorno. É perceptível que ideias e sugestões dos envolvidos tornam mais tangível o processo de ES, assim como as contrapartidas dadas nesse estudo.
Effect of Silver willow “Russian olive” (Elaeagnus angustifolia) on extensive sheep management
Authors: Varga Krisztina , Csízi István
Published: December 2023

We carried out a study in the Karcag Research Institute, which affected the areas of narrow-leaved silver willow. In the framework of this research, we performed Balázs's coenology, and thus established the degree of Borhidi degradation, which resulted in the fact that the areas of the silver willow were degraded practically irreversibly, the diversity of the grassland has decreased. We consider it very important to study these grassland areas of silver willows, as they can provide an additional fodder base for sheep grazing, which will also increase the sustainability of the grassland. The obtained soil analysis results show that the soil samples of the silver willow areas are richer in nitrogen (p-value: 0.006) and phosphorus (p-value: 0.003) than the examined control area.
Effect of sufficient and deficit irrigation with different salt inputs on the yield of cucumber
Authors: Balaout Ibtissem , Kovács Györgyi , Tuba Géza , Zsembeli József
Published: December 2023

Soil salinisation is considered one of the major environmental hazards threatening agricultural productivity and can be accentuated by climate change as well as the use of low-quality water in irrigation. This is the case in our study area which is affected by secondary salinisation due to the use of saline irrigation water for horticultural production. Deficit irrigation technique is implemented especially in arid and semiarid regions due to its potential to optimise water productivity while maintaining or increasing crop yield. The main objective of this study was to compare the effect of irrigation with sufficient (SD) and deficit (DD) doses. This research was carried out in Karcag in 2020. Cucumber was grown on a meadow chernozem soil and was irrigated with SD and DD of two irrigation water qualities. Soil moisture was monitored and crop yields were recorded. Despite the differences in quality and quantity of water, the application of less water by DD maintained the same yield as SD. We found a non-significant difference between the average soil moisture contents under the treatments (15.5 v/v% for SD and 13.5 v/v% for DD). Deficit irrigation can be an efficient technique due to its potential for improving water use efficiency, maintaining sufficient soil moisture content favourable for proper crop development and yield.
Effect of ethephon levels and amino acids on the growth characteristics of oat crop
Authors: Hassan Haider H. , Zaibel Doaa N. , Zaidan Safaa A. , Shadhan Jameel S.
Published: December 2023

A field experiment was conducted during the 2021-2022 season in an agricultural field in Basra Governorate. The aim was to study the effect of spraying ethephon and amino acids on the growth characteristics of oats (Avena sativa L.) Shifa cultivar. The experiment involved three levels of ethephon (0, 0.240, and 0.600 kg ha-1), represented by the symbols E0, E1, and E2 respectively, and two spray levels of amino acids (0 and 5 ml L-1), represented by the symbols A0 and A1. A factorial experiment was applied using the R.C.B.D (randomized complete block design) in a split plots arrangement with three replications. The results revealed significant differences in the levels of ethephon for most of the studied characteristics. The level of 0.240 kg ha-1 (E1) was superior in terms of chlorophyll content, crop growth rate, and the number of tillers, with increases of 39.07%, 39.26%, and 16.36%, respectively, compared to the control treatment (E0). Regarding the amino acids treatments, spraying at a concentration of 5 ml L-1 (A1) demonstrated significant superiority, resulting in the highest plant height, flag leaf area, chlorophyll content, and crop growth rate. This study concludes that amino acids play a crucial role in plant growth, and the combination of 5 ml L-1 amino acids with 0.240 kg ha-1 of ethephon significantly increased chlorophyll content and crop growth rate.
Impact of tillage systems on maize emergence
Authors: Sojnóczki István , Nagy János , Kecskés István
Published: December 2023

In Europe, there has been a significant change in the way tillage is approached in recent years. This change is due to a growing awareness among farmers, politicians and society as a whole that soil is not a renewable resource in itself. From an agricultural point of view, the greatest impact on soil condition can be achieved through the use of the applied tillage systems.  My research takes this approach as a basis when examining the different tillage systems and their impact on the environment. In this context, conventional and a variety of no-tillage systems are examined in this paper. As a next step, it is examined how the environmental conditions created by the different tillage systems influence the emergence of maize hybrids. The analyses are carried out in a multi-factorial, long-term tillage field experiment. The same batch of the same hybrid seed was sown in several crop years, and the effects of environmental conditions on the emergence process were examined. Environmental effects and emergence-related uptake were measured in the examined plots. Measurements of environmental effects included air temperature, precipitation, soil temperature measured at seeding depth, as well as % cover of stem residue on the surface in the treated plots. The first emergence time measurements of the sown crop in the plots of each treatment were compared and relationships between these factors were investigated.
Growth and yield patterns of black locust (Robinia pseudoacacia L.) sample trees affected by site conditions: case studies
Authors: Rédei Károly , Szabó Fruzsina , Honfy Veronika , Ábri Tamás
Published: December 2023

The trees removed from the long-term experiment plots are available for the measurements as lying trees. Through the determination of the volume in sections along the stem, the stem form, the stem volume and other factors can be specified. The comparison of the stems of individual trees of first and third yield classes of black locust (Robinia pseudoacacia L.) stands shows that site conditions have a main effect on the yield (mean tree volume). The difference can be as high as 53% at the age of 30 depending on the sites. To determine the growth patterns based on tree volume is rather a new approach in the light of the relevant literature. The obtained results also highlight the importance of choosing the appropriate tree species for a given site.
Videoaulas como ferramenta de ensino-aprendizagem de probabilidade e estatística para o ensino fundamental e médio / Video classes as a teaching-learning tool of probability and statistics for elementary and high school
Authors: Freitas Ivana de Oliveira , Hartmann Ângela Maria
Published: December 2023

O material pedagógico descrito neste artigo foi elaborado dentro de uma componente curricular do curso de Ciências Exatas – Licenciatura, da Universidade Federal do Pampa. A produção matemática, no formato de videoaulas, foi desenvolvida considerando a atual situação da educação brasileira, frente a pandemia de Covid-19, aliada a implementação da Base Nacional Comum Curricular - BNCC. As videoaulas foram elaboradas a partir de objetos de conhecimento e habilidades da unidade temática Probabilidade e Estatística, previstos para o 5º e o 6º ano do Ensino Fundamental e o 3º ano do Ensino Médio. A construção desse material pedagógico, mostrou que é possível criar atividades que atendam as habilidades previstas na BNCC e as exigências do ensino remoto. As videoaulas representam uma nova possibilidade de recurso didático a ser utilizado em escolas, para complementar as orientações dos professores e lançar desafios matemáticos para os alunos.
Pengaruh Kinerja Keuangan Perusahaan Terhadap Opini Audit Going Concern
Authors: De Haan Joshua Adry Philander , Sari Martdian Ratna
Published: December 2023

This research aims to assess the influence of financial performance on going concern audit opinions during the Covid-19 pandemic. The going concern issue has become increasingly relevant due to the pandemic's impacts. The study involves 429 sample data from manufacturing companies listed on the Indonesia Stock Exchange (BEI) from 2019 to 2021. The research method applied is associative research, which aims to explore the correlation between profitability, liquidity, solvency, and activity ratios with audit opinions related to the continuity of operations (going concern). The data analyzed in this study are quantitative data obtained from companies' financial reports and accessed through the official website of the Indonesia Stock Exchange (BEI). The statistical method used to analyze this data is logistic regression analysis. The research results reveal that when analyzing variables separately, the debt-to-assets ratio and total assets turnover have an impact on going concern audit opinions, while return on assets, return on equity, gross profit margin, net profit margin, current ratio, quick ratio, cash ratio, debt to equity ratio, fixed asset turnover, and inventory turnover do not have an impact on going concern audit opinions.
Optimalisasi Strategi Promosi Digital di Era Digitalisasi: Sebuah Kajian Komprehensif pada PT Glamourix AFA Indonesia Skincare 2022-2023
Authors: Hermanses Bintang , Roswinanto Widyarso
Published: December 2023

In the digitalization era, digital promotions are crucial for companies, including the skincare industry, such as designing digital promotion programs at PT. Glamourix AFA Indonesia Skincare 2022-2023. The method used in this research is descriptive-qualitative and field research by conducting literature studies, interviews, and observations. The research results show that PT. Glamourix AFA Indonesia needs to develop a digital promotional program design to achieve product sales targets. Promotion of skincare products is carried out by creating blog content, videos, and social media activities by providing special discounts—a digital promotion process for Emre PT products. GAI carries out four types of promotions: advertising on social media and Instagram, public relations by utilizing content via Instagram, direct marketing via instant messages on WhatsApp, and sales promotions by creating discount programs. Emre's digital promotion strategy for the 2022-2023 period that Emre can carry out is digital advertising by working with digital TV stations to market products by developing a digital promotional program design for PT. Glamourix AFA Indonesia Skincare is expected to be able to increase sales to a broader target consumer and be able to compete with competing companies in the increasingly tight skincare industry in Indonesia.
Faktor-faktor yang berhubungan dengan kepuasan alumni S2 kesehatan masyarakat terhadap layanan mutu pendidikan STIKes Kuningan tahun 2023
Authors: Ratnawati Dewi , Suparman Rossi , Wahyuniar Lely , Iswarawanti Dwi Nastiti
Published: December 2023

Kepuasan alumni menjadi salah satu tujuan utama bagi setiap perguruan tinggi. Karena apabila seorang alumni merasa puas dengan kinerja dan kualitas perguruan tinggi, maka pengguna akan loyal terhadap perguruan tinggi dan dalam jangka panjang akan menguntungkan perguruan tinggi. Tujuan penelitian ini untuk menganalisis faktor-faktor yang berhubungan dengan kepuasan alumni S2 kesehatan masyarakat terhadap layanan mutu pendidikan STIKes Kuningan tahun 2023. Jenis penelitian ini analitik deskriptif dengan desain cross sectional (potong lintang). Populasi penelitian ini berjumlah 64 orang dan pengambilan sampel dengan teknik total sampling. Instrumen penelitian ini mengunakan lembar kuesioner tertutup melalui google form. Sumber data penelitian ini adalah data primer dan sekunder. Analisis data meliputi analisis univariat, analisis bivariat (Rank Spearman) dan analisis multivariat menggunakan Regresi Logistik. Hasil penelitian menunjukan terdapat hubungan antara sarana prasarana (p = 0,007), kinerja dosen (p = 0,003), layanan tenaga kependidikan (p = 0,004) dan kurikulum (p = 0,001) dengan kepuasan alumni S2 kesehatan masyarakat terhadap layanan mutu pendidikan STIKes Kuningan tahun 2023. Variabel yang paling dominan berhubungan dengan kepuasan alumni yaitu kinerja dosen dengan nilai Exp (B) = 4,440. Diharapkan alumni dapat berperan dalam memberikan kritik, saran, masukan dan program nyata bagi kemajuan Perguruan Tinggi.
Dukungan Keluarga Dan Kepatuhan Menjalankan Diit Pasien Diabetes Melitus Di Wilayah Kerja Puskesmas Ratahan
Authors: Pitoy Frendy Fernando , Mandias Reagen Jimmy , Shintya Lea Andy , Manawan Kenny Julisa
Published: December 2023

ABSTRAK

Latar Belakang: Diabetes Mellitus (DM) merupakan penyakit gangguan metabolik yang menyebabkan kadar gula dalam darah menjadi tinggi. Salah satu cara untuk menangani penyakit DM adalah dengan melakukan diit yang ketat. Kepatuhan menjalankan diit DM bukanlah hal yang mudah, hal ini membutuhkan usaha dan komitmen untuk dapat konsisten menjalankannya. Dukungan dari keluarga merupakan suatu kontribusi nyata dari lingkungan yang sangat berperan aktif dalam mempengaruhi penderita DM agar dapat patuh menjalankan diit. Penelitian ini dilakukan dengan tujuan untuk mengetahui hubungan antara dukungan keluarga dengan kepatuhan menjalankan diit pada pasien DM di wilayah kerja Puskesmas Ratahan.

Metode: Penelitian ini menggunakan desain deskriptif korelasi dengan pendekatan cross sectional. Sampel diambil menggunakan teknik purposive sampling dengan jumlah sampel sebanyak 94 responden. Data dikumpulkan dengan menggunakan kuesioner Dukungan Keluarga dan Kuesioner Kepatuhan Diit DM

Hasil: Ditemukan bahwa sebagian besar responden masuk dalam kategori dukungan keluarga baik dengan jumlah 67 (71,3%) responden dan memiliki kepatuhan diit DM dalam kategori patuh dengan jumlah 59 (62,8%) responden.  Lebih lanjut, hasil analisis bivariat menggunakan rumus Spearman’s rho menunjukan nilai p=0,271.

Kesimpulan: Tidak terdapat hubungan yang signifikan antara dukungan keluarga dan kepatuhan menjalankan diit DM di wilayah kerja Puskesmas Ratahan.

Saran: Direkomendasikan kepada penderita DM untuk dapat mengatur jumlah, jenis, dan jadwal makan agar dapat sesuai dengan ketentuan diit yang baik, terlebih disarankan untuk mengurangi jenis makanan yang berminyak seperti santan dan gorengan.

Kata Kunci : Dukungan Keluarga, Kepatuhan Diit, Diabetes Melitus
Analisa faktor yang mempengaruhi gangguan fungsi muskuloskeletal pada lansia dengan diabetes melitus tipe 2 di kota malang
Authors: Wardojo Sri Sunaringsih Ika , Ritonga Salsabila Fachraini , Yuliadarwati Nungki Marlian
Published: December 2023

Latar Belakang: Diabetes melitus tipe 2 (DMT2) merupakan penyakit yang memiliki ciri seperti hiperglikemia, akibat dari hiperglikemia yang berkepanjangan dan tidak terkontrol dapat mengakibatkan komplikasi muskuloskeletal (MSDs). Efek jangka panjang dari kondisi muskuloskeletal disorders (MSDs) pada DMT2 dapat memperburuk kualitas hidup seseorang sehingga dapat mengakibatkan gangguan fungsi muskolskeletal. Tujuan penelitian ini dilakukan untuk mengetahui faktor yang mempengaruhi gangguan fungsi muskuloskeletal pada lansia yang menderita DMT2 di Kota Malang.

Metode: Penelitian ini dirancang secara observasional analitik dengan pendekatan cross-sectional study yang dilakukan dengan uji regresi liner berganda yang dilakukan di Puskesmas Dinoyo Kota Malang. Menggunakan teknik purposive sampling dengan jumlah sampel terdiri dari 33 responden.  

Hasil: Hasil peneltian menunjukkan bahwa terdapat hubungan korelasi antara jenis kelamin dengan gangguan fungsi muskuloskeletal pada lansia dengan DMT2 (p=0,029). Sedangkan usia (p=0,076), durasi DMT2 (p=0,168), indeks massa tubuh (p=0,328) tidak memiliki hubungan yang signifikan terhadap gangguan fungsi muskuloskeletal pada lansia dengan DMT2.

Kesimpulan: Kesimpulan dari penelitian ini yaitu dari keempat analisa faktor hanya jenis kelamin saja yang memiliki hubungan dengan gangguan fungsi muskuloskeletal pada lansia dengan DMT2 di Kota Malang.

Saran: Pada penelitian selanjutnya, diharapkan untuk melakukan penelitian secara mendalam terkait faktor yang dapat mempengaruhi gangguan fungsi muskuloskeletal pada lansia yang menderita DMT2.