bluuebunny/crossref_metadata_2025_split huggingface dataset:
A multi-task learning model using RR intervals and respiratory effort to assess sleep disordered breathing
Authors: Xie Jiali , Fonseca Pedro , Dijk Johannes van , Overeem Sebastiaan , Long Xi 
Published: November 2023

Abstract

Background
Sleep-disordered breathing (SDB) affects a significant portion of the population. As such, there is a need for accessible and affordable assessment methods for diagnosis but also case-finding and long-term follow-up. Research has focused on exploiting cardiac and respiratory signals to extract proxy measures for sleep combined with SDB event detection. We introduce a novel multi-task model combining cardiac activity and respiratory effort to perform sleep-wake classification and SDB event detection in order to automatically estimate the apnea-hypopnea index (AHI) as severity indicator.
Methods
The proposed multi-task model utilized both convolutional and recurrent neural networks and was formed by a shared part for common feature extraction, a task-specific part for sleep-wake classification, and a task-specific part for SDB event detection. The model was trained with RR intervals derived from electrocardiographic and respiratory effort signals. To assess performance, overnight polysomnography (PSG) recordings from 198 patients with varying degree of SDB were included, with manually annotated sleep stages and SDB events.
Results
We achieved a Cohen’s kappa of 0.70 in the sleep-wake classification task, corresponding to a Spearman’s correlation coefficient (R) of 0.830 between the estimated total sleep time (TST) and the TST obtained from PSG-based sleep scoring. Combining the sleep-wake classification and SDB detection results of the multi-task model, we obtained an R of 0.891 between the estimated and the reference AHI. For severity classification of SBD groups based on AHI, a Cohen's kappa of 0.58 was achieved. The multi-task model performed better than a single-task model proposed in a previous study for AHI estimation, in particular for patients with a lower sleep efficiency (R of 0.861 with the multi-task model and R of 0.746 with single-task model with subjects having sleep efficiency < 60%)
Conclusion
Assisted with automatic sleep-wake classification, our multi-task model demonstrated proficiency in estimating AHI and assessing SDB severity based on AHI in a fully automatic manner using RR intervals and respiratory effort. This shows the potential for improving SDB screening with unobtrusive sensors also for subjects with low sleep efficiency without adding additional sensors for sleep-wake detection.
Soil conditions of lawns on public green spaces of the city of St. Petersburg in various microclimatic conditions
Authors: Богданова Л.С. , Двадцатова Т.В. , Мельничук И.А. , Субота М.Б. , Яковлев А.А. 
Published: November 2023

Целью данного исследования является изучение плодородия почвы на участках газона с разными микроклиматическими условиями среды. Отбор почв проведен на территории шести объектов зеленых насаждений общего пользования Санкт-Петербурга: Обуховский сквер, Сад Ивана Фомина, Муринский парк, Удельный парк, Южно-Приморский парк, сквер вдоль р. Ивановки. Определение основных агрохимических показателей производилось в лабораторных условиях по общепринятым методикам в нескольких повторностях. Данные исследования проводятся в рамках междисциплинарного проекта Российского научного фонда «Газон как индикатор устойчивой городской среды и адаптации к изменениям климата» при поддержке администрации Санкт-Петербурга. Изучение почвенных условий газонов является одной из важных составляющих при планировании мер ухода и содержания. Полученные данные показали, что почвы на исследуемых территориях слабо и очень слабо обеспечены калием и фосфором; азотом почвы парков обеспечены в разной степени, однако бедных почв больше. Также наблюдается высокая положительная корреляционная зависимость содержания подвижного калия от содержания подвижного фосфора в исследуемых почвах.
The purpose of this research is to study soil fertility in lawn areas with different microclimatic environmental conditions. Soil sampling was carried out on the territory of six public green spaces in St. Petersburg: Obukhov Square, Ivan Fomin Garden, Murinsky Park, Udelny Park, Yuzhno-Primorskiy Park, Ivanovka River Square. The determination of the main agrochemical indicators was carried out in the laboratory according to generally accepted methods in several repetitions. These studies are carried out within the framework of the interdisciplinary project of the Russian Science Foundation with the support of the administration of St. Petersburg «Lawn as an indicator of a sustainable urban environment and adaptation to climate change». The study of the soil conditions of lawns is one of the important components in the planning of care and maintenance measures. The data obtained showed that the soils in the studied territories are poorly supplied with potassium and phosphorus; nitrogen supply differs, but most soils are poor ones. High positive correlation between the content of available potassium and the content of available phosphorus in the studied soils is revealed.
Vibration load of the feller buncher machine operator
Authors: Александров В.А. , Александров А.В. , Бучников А.А. 
Published: November 2023

Разработана динамическая модель системы «Оператор - ВПМ - предмет труда - дерево». Математическое описание составлено в форме уравнения Лагранжа 2-го рода. Система уравнений решена относительно упругой деформации спинки сиденья оператора методом Рунге-Кутта, с помощью среды программирования MathCAD. Апробация модели осуществлена на примере серийно выпускаемых валочно-пакетирующих машин ЛП-19А.
A dynamic model of the «operator - feller-buncher machine - object of labor - tree» has been developed. The mathematical description is in the form of the Lagrange equation of the second kind. The system of equations is solved for the elastic deformation of the operator's seat back by the Runge-Kutta method, using the MathCAD programming environment. Approbation of the model was carried out on the example of commercially available feller-bunchers machines LP-19A.
Efficient method of extinguishing peat fires in winter
Authors: Секерин И.М. , Ерицов А.М. , Кректунов А.А. , Залесов С.В. 
Published: November 2023

Установлено увеличение количества торфяных пожаров в последние годы на территории Свердловской области. Экспериментально доказано, что тушение торфяных пожаров, не потушенных в летне-осенний период, целесообразно проводить в зимний период. Оптимальным периодом тушения является конец февраля - март. При развитии торфяных пожаров формируются, как правило, многоочаговые лесные пожары. Тушение таких пожаров следует начинать с аэроразведки, используя при этом беспилотные летательные аппараты, оснащенные тепловизорами. Работы по разведке следует проводить при пасмурной погоде и температуре до -10 С. Установлено, что тушение следует начинать с выкорчевывания имеющихся в очаге горения деревьев, если таковые имеются, и перемещения их на выгоревший участок. Корчевка деревьев и последующее расталкивание горящего торфа производится бульдозером марки Б-10М. При перемещении бульдозер расталкивает горящий торф слоем до 10 см, перемешивая его со снегом и негорящими слоями торфа. При обратном движении бульдозера производится уплотнение тлеющего торфа с целью лучшего его охлаждения. За одну смену, используя бульдозер, можно потушить от 0,5 до 2,0 га активных очагов лесных торфяных пожаров. Указанный способ позволил зимой 2021-2022 гг. потушить 28 торфяных пожаров. Случаев повторного возгорания торфа на потушенных участках не зафиксировано.
In the territory of the Sverdlovsk region increasing the number of plat fires in recent years is established. It has been experimentally proved that it is advisable to extinguish plat fires that are not extinguished in the summer autumn period in the winter period. The optimal extinguishing period is the end of February-March. With the development of peat fires, as a rule, multifocal forest fires are formed. The extinguishing of such fires should begin with aeroreconnaissance using unmanned aerial vehicles equipped with thermal imagers. Exploration work should be carried out in cloud weather and temperatures down to minus 10 degrees. It has been established that extinguishing should begin with uprooting trees in the fire center, if any, and moving them to the burned area. Uprooting of trees and subsequent pushing of burning plat is carried out by a 13-10 m bulldozer. When moving the bulldozer is pushing the burning plat with a layer up to 19 cm mixing it with snow and non-burning layers of plat. In reverse movement of the bulldozer, the smoldering plat is compacted in order to cool it better. In on shift, using a bulldozer it is possible to extinguish from 0.5 to 2.0 ha active forest plat fires. This method allowed to put out 28 plat fires in the winter of 2021-2022. Cases of re-ignition of plat in extinguished areas were not recorded.
Simulation modeling of wood harvesting processes
Authors: Соколов А.П. 
Published: November 2023

В статье описывается разработанная автором новая имитационная модель процессов заготовки древесины, реализованная в среде пакета программ AnyLogic. Модель позволяет описывать лесосеки любой конфигурации, варьировать характеристики древостоя и моделировать как сплошные, так и несплошные рубки, моделировать работу комплексов лесозаготовительных и лесотранспортных машин разного состава (харвестер+форвардер, ВПМ+скиддер и т. п.), изменять число задействованных трелевочных машин, учитывать ограничения по безопасности выполнения работ и технологические ограничения пространственного характера. Наглядная анимация моделируемых производственных процессов существенно облегчает работу с моделью.
The article describes a new simulation model of wood harvesting processes developed by the author and implemented in the AnyLogic software package. The model allows to describe cutting areas of any configuration, vary the characteristics of the forest stand and simulate both clearcut and non-clear cuts, simulate the operation of logging and timber transport machines of various compositions (harvester + forwarder, feller bunchers + skidders, etc.), change the number of involved forwarders and skidders, take into account the restrictions on the safety of work and spatial technological limitations. Animation of the simulating processes greatly facilitates the work with the model.
Enhanced forecasting of multi-step ahead daily soil temperature using advanced hybrid vote algorithm-based tree models
Authors: Hatamiafkoueieh Javad , Heddam Salim , Khoshtinat Saeed , Khazaei Solmaz , Osmani Abdol-Baset , Nohani Ebrahim , Kiomarzi Mohammad , Sharafi Ehsan , Tiefenbacher John 
Published: November 2023

Abstract

In this study, the vote algorithm used to improve the performances of three machine-learning models including M5Prime (M5P), random forest (RF), and random tree (RT) is developed (i.e. V-M5P, V-RF, and V-RT). Developed models were tested for forecasting soil temperature (TS) at 1, 2, and 3 days ahead at depths of 5 and 50 cm. All models were developed using different climatic variables, including mean, minimum, and maximum air temperatures; sunshine hours; evaporation; and solar radiation, which were evaluated. Correlation coefficients of 0.95 for the V-M5P model, 0.95 for the V-RF model, and 0.91 for the V-RT model were recorded for both 1- and 2-day ahead forecasting at a depth of 5 cm. For 3-day ahead forecasting, V-RF was the superior model with Nash–Sutcliff efficiency (NSE) values of 0.85, compared to V-M5P's value of 0.81 and V-RT's value of 0.81. The results at a depth of 5 cm indicate that V-RT was the least effective model. At a depth of 50 cm, forecasted TsS was in good agreement with measurements, and the V-RF was slightly superior. Among the limitations of the current work is that the models were unable to improve their performances by increasing the forecasting horizon.
Assessing the vulnerability of flash floods to climate change in arid zones: Amman–Zarqa Basin, Jordan
Authors: Al Saodi Rihan , Al Kuisi Mustafa , Al Salaymeh Ahmed 
Published: November 2023

Abstract

The objective of this study was to evaluate the sensitivity of flash floods to future climate change in the Amman–Zarqa Basin, Jordan. Historical daily rainfall and temperature data from 1970 to 2018 were collected, along with projected daily data derived from general circulation models (GCMs) forecast spanning 2019–2060. The methodology involved analyzing historical and model forecast data, conducting trend analysis, mapping changes in land use, estimating runoff volume, selecting indicators, assigning their weights through the analytical hierarchy process, and generating vulnerability maps. Analysis of precipitation trends revealed a 14.61% decrease in total annual rainfall over the past 48 years; however, future projections indicate a 5.26% increase. Downstream sub-catchments in the arid portion are projected to receive higher rainfall, while upstream sub-catchments are expected to experience a substantial decline, resulting in an overall reduction in runoff. Moreover, our findings demonstrate a rising trend in mean temperature, which is expected to persist. Remote sensing data indicate a 14.76% expansion of urban areas, indicative of rapid population growth. Although no highly vulnerable sub-catchments were identified, downstream sub-catchments 8 and 9 exhibited moderate vulnerability to flash floods, which can be attributed to the increase in rainfall and insufficient stormwater infrastructure.
Chemical risks in drinking water of inhabitants in the basin of the Tonle Sap Great Lake
Authors: Phan Kongkea , Hoeng Sophanith , Phin Samnang , The Noreaksatya , Sriv Tharith , Sao Vibol , Chey Chan Oeurn 
Published: November 2023

Abstract

The present study aimed to assess chemical risks in the drinking water of inhabitants in the basin of the Tonle Sap Great Lake. Water samples from tube wells (n = 52), dug wells (n = 13), stored rain water (n = 39), ponds/lakes (n = 19), canals/rivers (n = 24), and household pipe water (n = 45) were collected and analyzed for physicochemical properties, as well as microbial and chemical qualities using standard methods. Analytical results revealed that 42.1% of tube wells had As &gt; 10 μg L−1 while 8.3% had Cr &gt; 0.05 mg L−1. Concurrently, 55.2 and 11.8% of tube wells had Cd &gt; 3.00 μg L–1 and Pb &gt; 10 μg L−1, respectively. Moreover, 35.0% of pipe water had Fe &gt; 0.3 mg L−1, whereas 85.7% of tube wells and 69.2% of dug wells had Mn &gt; 0.1 mg L−1. All water sources including pipe water could pose risks of non-carcinogenic effects of chemical mixtures to all exposure groups through their drinking water pathway. Children were at a higher risk of chemical mixtures in their drinking water than adults. This study suggests that advanced treatment technologies should be applied to the current water treatment plants to provide inhabitants with safe drinking water.
Evaluation of the yield and photosynthetic parameters of corn by some amendatory materials under deficit irrigation conditions
Authors: Khodadadi Dehkordi Davoud , Shamsnia Seyed Amir , Asadilour Mehdi 
Published: November 2023

Abstract
Irrigation is essential for corn plants. Because this plant is a summer crop, irrigation is critical to its production, and an absence of moisture is a significant constraint on its development. This study aimed to investigate the impacts of hydrophilic polymer (HP) and fulvic acid (Fu-A) as amendatory materials on yield, yield component, and photosynthetic parameters of corn plants under the deficit irrigation (DI) situation. The treatments were performed by mixing two water provision groups, including complete irrigation (CI) and DI, two soil improvements, including the application of without HP or with HP, and two foliar amendments, including spraying without Fu-A or with Fu-A, with four replications. According to the results, under DI and CI situations, the co-treatment of two amendatory materials, Fu-A and HP, enhanced corn yield significantly. These enhancements were higher than enhancements attained by using them alone. Besides, the moisture and leaf proline available for the plant during DI circumstances were increased by utilizing both amendatory materials. Under DI treatment, using Fu-A and HP amendatory materials together may thus be more significant and beneficial for increasing production and boosting photosynthetic mechanisms.
Discontinuous Urban Growth: A Discussion from the Perspective of Sustainability
Authors: Veiga Artur José Pires , Veiga Daniela Andrade Monteiro 
Published: November 2023

Objective: The study analyzes the phenomenon of discontinuity in the growth of the urban fabric directly related to planning, urbanization and the sustainability of municipal management. The analyzes presented are directed to the case study of Vitória da Conquista, in the State of Bahia, Brazil.

Theoretical framework: The study brings theoretical reflections on the issue of discontinuity in the city's urban fabric, correlating it to spatial segregation; public policy; optimization of installed infrastructure; the urban voids generated by real estate speculation, the actions of space transforming agents.

Method: The Geographic Information System was used as a methodological instrument, with geoprocessing resources, using orbital data in raster format (satellite images) obtained from the National Institute for Space Research (INPE), and vector cartographic bases available at IBGE.

Results and conclusion: The growth of the city of Vitória da Conquista over the years resulted in a morphology with the creation of urban voids, with speculative purposes, where residual spaces were created with discontinuous growth, in a logic that restructures spaces in the urban area.

Implications of the research: Access to urban rights or the right to the city of an indivisible nature, guaranteed by the 1988 constitution to all inhabitants of the city, of present and future generations. The equity of living, enjoying and participating in the production of fair, inclusive and sustainable cities.

Originality/value: This research has academic value, as it supports public policies and urban planning, with the originality of the discussions presented.
Spatial and Environmental Influence on the Community of Aquatic Insects in Atlantic Forest Streams
Authors: Souza Francine Novais , Da Silva Rodolfo Mariano Lopes , Campiolo Sofia 
Published: November 2023

Purpose: Investigate the influence of environmental variables and spatial autocorrelation on aquatic insect communities within the same water flow in Atlantic Forest streams.

Theoretical framework: The organisms in lotic environments are influenced by both local and non-local factors, in addition to other processes, which result from the dynamics of the environment. Alterations in these factors can provide evidence regarding the organization of aquatic communities. Given the high sensitivity insect are used in ecosystems quality studies around the world.

Method: Sampling campaigns were conducted every three months. A total of twenty-four samples were collected across four campaigns and six collection sites were established along the same stream. In-situ measurements of physical and chemical variables were performed. The environmental quality of the surroundings was assessed using the Habitat Integrity Index.

Results and conclusion: No spatial dependence was found between the sampling sites. Closer points no longer exhibited resemblance. For the studied situation, the surrounding and turbidity have a stronger relationship with the biota, acting as environmental filters and suggesting that the organization of is driven by local environmental conditions. Environments that are locally less disturbed are more influential in shaping for aquatic insect communities. Thus, considering the effect of habitats on organisms and recognizing the importance of local conservation efforts for preserving the aquatic biodiversity of the Atlantic Forest biome, we emphasize need for the implementation permanent monitoring programs in hydrographic basins, mainly for the BHRA, and the development of strategies aimed at minimizing the impacts on these environments.

Research implications: We affirm the applicability of aquatic insects as valuable indicators for assessing the quality and biodiversity of streams and suggest studies with these organisms as a strategy to support management in freshwater environments.

Originality/value: Studies that evaluate water bodies and their surroundings are essential in view of the pressures exerted through the different land uses. The study region deserves attention in view of the implementation of large constructions.
O uso da planta Kalanchoe Pinnata (CORAMA) no processo de cicatrização de úlceras gástricas
Authors: Sousa Ana Paula Aguiar da Silva , Silva Raurimar da Silva , Oliveira Adriano dos Santos 
Published: November 2023

Objetivo: Descrever sobre os benefícios da planta Kalanchoe Pinnata (CORAMA) na cicatrização de ferimentos sobretudo no processo inflamatório de úlceras gástricas. Revisão bibliográfica: O uso da planta no processo de cicatrização de úlceras gástricas vem sendo utilizada como coadjuvante no tratamento da enfermidade e como uma alternativa terapêutica em outras doenças trazendo resultados positivos. Com base nos estudos a planta possui potencial ação terapêutica pois promove ação antibacteriana, antiviral, antisséptica, cicatrizante, diurética, antifúngica entre outras. Considerações finais: A partir dos estudos, pode se considerar que a planta estudada possui efeito anti-inflamatório, gastroprotetora, com poder de regeneração da mucosa gástrica, contém substâncias naturais com múltiplas propriedades pois não tem na sua natureza química potencial tóxico. Outrossim, a planta acima descrita tem o seu valor de acordo com os conceitos existentes e poderá contribuir nas pesquisas e na formação de estudos significativos para a ciência, sendo objeto de interesse empresarial e opção terapêutica ofertada pelo Sistema Único de Saúde (SUS).
Palliative Care Need in India: A Systematic Review and Meta-analysis
Authors: Chandra Ankit , Debnath Aninda , Nongkynrih Baridalyne 
Published: November 2023

Background:To achieve sustainable development goal 3.8, countries must prioritise the provision of palliative care. We aimed to estimate the prevalence of palliative care needs in India.Methods:A systematic literature search was conducted in databases of PubMed, Cochrane, Embase, Web of Science, and EBSCO Host. We included community-based studies published in English between inception and April 30, 2023. We excluded hospital-based studies that were conducted solely including diseased patients. Data were extracted independently, and a quality assessment was performed. To estimate the pooled prevalence and 95% confidence intervals (CI), we used the random-effects model. Heterogeneity was assessed using the Q statistic and I2test. Subgroup analyses were conducted based on the study site, urban–rural distribution, gender, and age groups. Publication bias was evaluated using a funnel plot and Egger test. STATA software was used for data analysis.Results:Out of the 2632 articles identified, 8 cross-sectional studies were included. Using the random-effects model, the pooled estimate of palliative care needs was found to be 6.21/1000 population (95% CI: 2.42–11.64). The southern region showed a prevalence of 10.83/1000 compared to 2.24/1000 in the northern region. Urban areas had a prevalence of 3.34/1000, while rural areas had a prevalence of 7.69/1000. Among females, the prevalence was 9.64/1000, compared to 6.77/1000 among males. Notably, individuals aged over 60 years had a higher prevalence of palliative care needs, with a rate of 37.86/1000 population.Conclusion:This systematic review and meta-analysis highlight a substantial need for palliative care in India, with a prevalence of 6.21 individuals/1000 population.