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1.
J Environ Manage ; 370: 122463, 2024 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-39299105

RESUMEN

This study critically examines future carbon (CO2) emissions in the Belt & Road Initiative (BRI) region, considering factors such as energy consumption, economic growth, population growth, and population density. The objective of this study is to identify critical areas of higher emissions, which require policy intervention capable of strengthening sustainability in the BRI compact. A combined approach of stochastic modeling and Monte Carlo simulations was employed, utilizing panel data from 45 countries in the BRI region from 1990 to 2021. Results confirm that emissions are higher in all scenarios in direct proportion to electric power consumption, population growth, and Gross Domestic Product (GDP) growth. In scenarios with high emissions, a continuous and significant upward trend in CO2 emissions was observe. The medium emissions scenario exhibited a more moderated rise in emissions, suggesting a balance between economic development and environmental considerations. Critical areas for future environmental policy-making resides in electric power consumption, population growth, and GDP growth. The study strongly recommends for a shift from the current focus on road and railway infrastructure to renewable energy infrastructure, green innovations and efficient technology transfer to member countries. Without this, the BRI region is likely to face increased emissions, posing significant challenges to future sustainable development and global environmental sustainability.

2.
Cureus ; 16(8): e66860, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39280561

RESUMEN

Blunt traumatic injury to the chest or abdomen can produce injury to the aorta, which can compromise perfusion to the lower spinal cord. This report presents the case of a seat belt-restrained driver who sustained blunt abdominal trauma and progressive paraplegia. The trauma produced an acute occlusion of the abdominal aorta associated with an L4 Chance fracture and multiple bowel injuries. The Chance fracture occurred two levels below the aortic occlusion. The significant aortic atherosclerosis changes in this patient could have triggered the complete occlusion two levels above the fracture. An aortic injury associated with a vertebral fracture represents a severe and potentially lethal condition. Lower limb ischemia in the setting of a blunt abdominal injury could lead to a high diagnostic suspicion of abdominal aortic injury. Treatment of the vascular injury should be performed without delay to prevent or reduce permanent neurological deficits and ischemic injuries.

3.
Heliyon ; 10(17): e35934, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39296034

RESUMEN

The general tectonic structural architecture of southern Africa is an ensemble comprised of Kalahari Craton, a vast range of mosaics of the best-preserved geological Belts, and exposed crustal blocks. In the region, demarcation of geological boundaries, tracing of magnetic and gravitational bodies, and detrending lineaments are essential to understanding the structural limits. The study presents the prevalent gravitational and magnetic investigation of major geological Belts, enhancing edges of Cratons, and evaluation of surface invariants to improve the geological understanding and evaluate the correlation of structures with the general structural tectonic framework. The utilized filter methods in the gravity maps are the Directional derivatives along x, y, and z-directions, the Modulus tensor, the Total horizontal derivative, and the Tilt angle techniques. The phase-based filters used in the magnetic section include the Total horizontal derivative, Analytical signal, Tilt angle method, Tilt of total horizontal derivative, Theta method, Horizontal tilt angle method, Enhanced tilt filter, and Enhanced total derivative of the tilt angle. The Directional derivatives of the gravity field and the Modulus of the gravity gradient tensor demarcate the boundaries of geological structures. The Total horizontal derivative method gives an immediate and easy-to-read image of the linear structures and fault systems. The signal cluster on the Analytical signal and Tilt angle maps delineate the boundaries of causative geological sources. The Theta map is comparable with the enhanced total derivative of the tilt angle. The Tilt of the total horizontal derivative, Theta map, and Enhanced tilt filter accentuate the traces of magnetic bodies, including the Cratons. The study finds regional lineaments surrounding the Cratons and concentrated along the geological Belts. The approach of using joint elegant filters is effective and increases the certainty of the interpretation.

4.
Heliyon ; 10(17): e36745, 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39296178

RESUMEN

Self-compacting concrete is regarded as one of the newest types of concrete due to its durability, efficiency, viscosity, stability, flowability, and resistance. Today, one of the most pressing environmental challenges is the disposal of solid waste, and one of the plastic materials discarded as waste after use is plastic packaging belts. These are made on the basis of polypropylene, as well as the factory Iron smelting mines are the main source of iron oxide waste production. Studies using recycled plastic fibers (30 mm × 0.3 mm) and waste iron oxide as cost-effective additives in self-compacting concrete (SCC) are presented. The effects on fresh and hardened properties were evaluated at various additive contents. Fresh and hardened properties of self-compacting concrete (SCC) were evaluated with and without fiber and iron oxide additives. Tests included workability (slump flow, funnel), strength (compressive, tensile), and durability (ultrasonic pulse speed, permeability). Experiments revealed that increasing the amount of recycled plastic fibers and waste iron oxide in self-compacting concrete (SCC) led to higher compressive and tensile strengths at both 7 and 28 days. These strength increases ranged from 2 to 9.68 MPa for compressive strength and 1.61-7.44 MPa for tensile strength, compared to the control specimen without additives.

5.
J Environ Manage ; 370: 122499, 2024 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-39293115

RESUMEN

Atmospheric pollutants PM2.5 and CO2 share similar sources and impact mechanisms. Green innovations and urban greening significantly reduce these pollutants while promoting economic growth. However, the synergies and trade-offs between carbon reduction, pollution control, green expansion, and economic growth remain understudied. This paper examines 110 cities in the Yangtze River Economic Belt (YREB), China's premier green development site, as a unified system. Using fractional-order synthesis analysis, this paper constructs an assessment indicator system and measures synergy with a coupled coordination degree model. The driving factors are explored using a system-generalized method of moments estimation. The findings indicate that most cities in the YREB are at an intermediate coordination stage. The coupling of greening with carbon reduction, pollution control, and growth has a low degree, highlighting an urgent need to strengthen greening efforts. Key drivers include the digital economy, advanced industrial structure, innovative talent aggregation, infrastructure construction, financial investment, and marketization. The digital economy significantly influences all regions of the Yangtze River. Notable heterogeneity exists in the impact of other drivers across different regions. These results offer valuable policy insights for managing carbon emissions and pollutants, contributing to sustainable urban development.

6.
Updates Surg ; 2024 Sep 15.
Artículo en Inglés | MEDLINE | ID: mdl-39277837

RESUMEN

Video-assisted thoracoscopic surgery (VATS) has been widely used for low invasiveness and shorter recovery time. However, patients receiving VATS still experienced moderate-to-severe pain even under both regional and systemic analgesia. Little is known on the effect of non-pharmaceutical method with physical stabilization for post-VATS pain control. The study aims to investigate the feasibility of physical stabilization as a surrogate method for pain control. The single-blinded, randomized-controlled trial recruited the patients into physical stabilization group and standard care group after VATS. The patients in the intervention group tied a thoracic belt for all day, while the control group did not. Both groups had intravenous patient-controlled analgesia (IVPCA) and on-demand oral analgesics. The primary outcome was the visual analogue scale for pain at the 6th, 24th and 48th hour post-VATS and at the hospital discharge. There were 18 patients assigned to the interventional group and 18 patients assigned to the control group. Four patients in the control group were dropped out from the study. Physical stabilization was found to enhance the analgesic effect post-operative 24-48 h compared to standard care (Difference of VAS: 1.11 ± 0.68 v.s. 0.5 ± 0.86, p = 0.031). It had no effect on the dose of IVPCA or the use of oral analgesic agents. No complications direct to the thoracic belt or adverse outcome from the surgery were found in the study. Physical stabilization with thoracic belt to patients receiving VATS benefits to pain control, especially between the 24th and 48th hour post-VATS. Clinical Trial Registry number: NCT04735614.

7.
Environ Sci Pollut Res Int ; 31(42): 54962-54978, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39223410

RESUMEN

The current study evaluated the effects of air pollution on selected street trees in the National Capital Territory during the pre- and post-monsoon seasons to identify the optimally suitable tree for green belt development in Delhi. The identification was performed by measuring the air pollution tolerance index (APTI), anticipated performance index (API), dust-capturing capacity (DCC) and proline content on the trees. The APTI of street trees of Delhi varied significantly among different tree species (F11,88.91 = 47.18, p < 0.05), experimental sites (F3,12.52 = 6.65, p < 0.001) and between seasons (F1,31.12 = 16.51, p < 0.001), emphasizing the relationships between trees and other types of variables such as the climate and level of pollution, among other factors. This variability emphasizes the need to choose trees to use for urban greening in the improvement of air quality in different environments within cities. Ascorbic acid (AA) concentration and relative water content (RWC) had a strong influence on APTI with an extremely significant moderate positive correlation between AA concentration and APTI (r = 0.65, p < 0.001) along with RWC and APTI (r = 0.52, p < 0.001), indicating that higher levels of AA concentration and RWC are linked to increased air pollution tolerance. The PCA bi-plot indicates AA has poor positive loading coefficients with PC1 explaining 29.49% of the total variance in the dataset. The highest APTI was recorded in Azadirachta indica (22.01), Leucaena leucocephala (20.65), Morus alba (20.62), Ficus religiosa (20.61) and Ficus benghalensis (19.61), irrespective of sites and seasons. Similarly, based on API grading, F. religiosa and F. benghalensis were identified as excellent API grade 6 (81-90%), A. indica and Alstonia scholaris as very good API grade 5 (71-80%), M. alba, Pongamia pinnata and Monoon longifolium as good API grade 4 (61-70%) and Plumeria alba as moderate API grade 3 (51-60%) in different streets of Delhi. As these plants are indigenous to the region and hold significant socio-economic and aesthetic significance in Indian societies, they are advisable for avenue plantations as part of various government initiatives to support environmental sustainability.


Asunto(s)
Contaminación del Aire , Ciudades , Árboles , India , Contaminantes Atmosféricos/análisis , Monitoreo del Ambiente , Estaciones del Año
8.
Plants (Basel) ; 13(17)2024 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-39273960

RESUMEN

The optimized sowing method and appropriate seed rate can improve wheat N use efficiency. However, the interactive effect of the sowing method and seed rate on N use efficiency, particularly N uptake and root length density, are unclear. A field experiment was conducted for two growing seasons in southern Shanxi province, China, using a split-plot design with the sowing method as the main plot (wide-belt sowing, WBS, and conventional narrow-drill sowing, NDS) and seed rate as the sub-plot (100-700 m-2). Our results showed that WBS had a significant and positive effect on N use efficiency (yield per unit of available N from the fertilizer and soil, by 4.7-15.4%), and the relatively higher seed rates (>300 or 400 m-2) enlarged the effects. The N use efficiency increases under WBS were mainly attributed to the increases in N uptake before anthesis, resulting from the promoted nodal roots per plant and per unit area, and root length density in the top layer(s). WBS promoted N translocation and the N harvest index, resulting in equivalent grain protein concentration and processing quality compared to NDS. Thus, adopting higher seed rates (>300 m-2) combined with WBS is recommended for achieving greater N efficiencies while maintaining the grain protein concentration and processing quality of winter wheat.

9.
Area Dev Policy ; 9(3): 343-364, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39219643

RESUMEN

The Belt and Road Initiative (BRI) has been theorised as a spatial fix to China's overaccumulation problem, and as such, an implicitly productivist endeavour. This article opens up conceptual space to consider how historically and geographically mediated forms of financialisation have tempered the unfolding of the BRI in peripheral economies. Drawing on the Serbian post-socialist transition context, financialisation has been characterised by underinvestment and a persistent dependency on foreign, market-based capital inflows which have (1) precipitated state transformations to mobilise Chinese financing for BRI projects, strengthening the role of the state in industrial rejuvenation; and (2) created an institutional palimpsest conducive to non-productive forms of surplus value appropriation that demonstrates the hybridity of accumulation imperatives underlying the BRI.


Más allá del remedio espacial: hacia una lectura financiera de la Nueva Ruta de la Seda en Serbia. Area Development and Policy. Se ha teorizado que la iniciativa de la Franja y la Ruta de China (Nueva Ruta de la Seda) es un remedio espacial de China a su problema de sobreacumulación y, por tanto, una tarea productivista implícita. En este artículo analizamos mediante un espacio conceptual de qué modo las formas de financiarización mediadas desde una perspectiva histórica y geográfica han atenuado el desarrollo de la Nueva Ruta de la Seda en economías periféricas. A partir de un contexto de transición en la era post-socialista de Serbia, la financiarización se ha caracterizado por una falta de inversión y una persistente dependencia de los ingresos de capital extranjero basada en el mercado, que ha (1) precipitado las transformaciones estatales para movilizar la financiación china de los proyectos para la Nueva Ruta de la Seda, y así reforzado el papel del Estado en el rejuvenecimiento industrial, y (2) creado un palimpsesto institucional que favorece las formas no productivas de la apropiación de la plusvalía y que demuestra la hibridez de los imperativos de acumulación subyacentes a la Nueva Ruta de la Seda.

10.
J Neurophysiol ; 2024 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-39230337

RESUMEN

Motor learning involves both explicit and implicit processes that are fundamental for acquiring and adapting complex motor skills. However, stroke may damage the neural substrates underlying explicit and/or implicit learning, leading to deficits in overall motor performance. While both learning processes are typically used in concert in daily life and rehabilitation, no gait studies have determined how these processes function together after stroke when tested during a task that elicits dissociable contributions from both. Here, we compared explicit and implicit locomotor learning in individuals with chronic stroke to age- and sex-matched neurologically intact controls. We assessed implicit learning using split-belt adaptation (where two treadmill belts move at different speeds). We assessed explicit learning (i.e., strategy-use) using visual feedback during split-belt walking to help individuals explicitly correct for step length errors created by the split-belts. After the first 40 strides of split-belt walking, we removed the visual feedback and instructed individuals to walk comfortably, a manipulation intended to minimize contributions from explicit learning. We utilized a multi-rate state-space model to characterize individual explicit and implicit process contributions to overall behavioral change. The computational and behavioral analyses revealed that, compared to controls, individuals with chronic stroke demonstrated deficits in both explicit and implicit contributions to locomotor learning, a result that runs counter to prior work testing each process individually during gait. Since post-stroke locomotor rehabilitation involves interventions that rely on both explicit and implicit motor learning, future work should determine how locomotor rehabilitation interventions can be structured to optimize overall motor learning.

11.
Workplace Health Saf ; : 21650799241262812, 2024 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-39269258

RESUMEN

BACKGROUND: Technology has the potential to prevent patient falls in healthcare settings and to reduce work-related injuries among healthcare providers. However, the usefulness and acceptability of each technology requires careful evaluation. Framed by the Technology Acceptance Model (TAM) and using the Adaptive Robotic Nursing Assistant (ARNA) to assist with patient ambulation, the present study examined the perceived usefulness of robots in patients' fall prevention with implications for preventing associated work-related injuries among healthcare providers. METHODS: Employing an experimental design, subjects were undergraduate nursing students (N = 38) and one external subject (not a nursing student) who played the role of the patient. Procedures included subjects ambulating a simulated patient in three ways: (a) following the practice of a nurse assisting a patient to walk with the patient wearing a gait belt; (b) an ARNA-assisted process with the gait belt attached to ARNA; (c) an ARNA-assisted process with a subject walking a patient wearing a harness that is attached to ARNA. Block randomization was used with the following experimental scenarios: Gait Belt (human with a gait belt), "ARNA + Gait Belt" (a robot with a gait belt), and "ARNA + Harness" (a robot with a harness). Descriptive statistics and a multiple regression model were used to analyze the data and compare the outcome described as the Perceived Usefulness (PU) of a robot for patient walking versus a human "nurse assistant" without a robot. The independent variables included the experimental conditions of "Gait Belt," "ARNA + Gait Belt," and "ARNA + Harness," the subject's age, race, and previous videogame playing experience. FINDINGS: Results indicated that PU was significantly higher in the Gait Belt + ARNA and Harness + ARNA conditions than in the Gait Belt condition (p-value <.01 for both variables). In examining potential influencing factors, the effects of race (White, African American, and Asian), age, and previous video-playing experience were not statistically significant (p-value >.05). DISCUSSION: Results demonstrated that using robot technology to assist in walking patients was perceived by subjects as more useful in preventing falls than the gait belt. Patient fall prevention also has implications for preventing associated work-related injuries among healthcare providers. IMPLICATIONS: Understanding the effects of a subject's perceptions can guide further development of assistive robots in patient care. Robotic engineers and interdisciplinary teams can design robots to accommodate worker characteristics and individual differences to improve worker safety and reduce work injuries.

12.
J Orthop Res ; 2024 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-39217413

RESUMEN

As we age, reliance on the ankle musculature for push-off during walking reduces and increased reliance on the hip musculature is observed. It is unclear how joint pathology like osteoarthritis may affect this distal-to-proximal redistribution of propulsion. Here, we revisited a proof-of-concept study to study the effect of split-belt treadmill training, designed to reduce step length asymmetry, on forward propulsion during walking. Eleven women with hip osteoarthritis and five age-matched control participants walked on an instrumented split-belt treadmill at their preferred speed (hip osteoarthritis: 0.73 ± 0.11 m/s; controls: 0.59 ± 0.26 m/s). Women with hip osteoarthritis had less ankle power and propulsive force than controls, and greater hip contributions to forward propulsion on their involved limb. Following split-belt treadmill training, propulsive force increased on the involved limb. Five of 11 participants experienced a change in redistribution ratio that was greater than the minimal clinically meaningful difference. These "responders" had greater variability in pre-training redistribution ratio compared to non-responders. Women with hip osteoarthritis had poorer propulsive gait mechanics than controls yet split-belt treadmill training improved propulsive force. Redistribution ratio also changed in participants with high baseline variability. Our results suggest that split-belt treadmill training may be beneficial to people with hip osteoarthritis who have high variability in walking parameters. Further, the age-related shift to increased hip contributions to propulsion across populations of older adults may be due to increased variability during walking.

13.
Proc Natl Acad Sci U S A ; 121(36): e2400085121, 2024 Sep 03.
Artículo en Inglés | MEDLINE | ID: mdl-39186643

RESUMEN

As climate change shifts crop exposure to dry and wet extremes, a better understanding of factors governing crop response is needed. Recent studies identified shallow groundwater-groundwater within or near the crop rooting zone-as influential, yet existing evidence is largely based on theoretical crop model simulations, indirect or static groundwater data, or small-scale field studies. Here, we use observational satellite yield data and dynamic water table simulations from 1999 to 2018 to provide field-scale evidence for shallow groundwater effects on maize yields across the United States Corn Belt. We identify three lines of evidence supporting groundwater influence: 1) crop model simulations better match observed yields after improvements in groundwater representation; 2) machine learning analysis of observed yields and modeled groundwater levels reveals a subsidy zone between 1.1 and 2.5 m depths, with yield penalties at shallower depths and no effect at deeper depths; and 3) locations with groundwater typically in the subsidy zone display higher yield stability across time. We estimate an average 3.4% yield increase when groundwater levels are at optimum depth, and this effect roughly doubles in dry conditions. Groundwater yield subsidies occur ~35% of years on average across locations, with 75% of the region benefitting in at least 10% of years. Overall, we estimate that groundwater-yield interactions had a net monetary contribution of approximately $10 billion from 1999 to 2018. This study provides empirical evidence for region-wide groundwater yield impacts and further underlines the need for better quantification of groundwater levels and their dynamic responses to short- and long-term weather conditions.

14.
Front Physiol ; 15: 1409304, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39113935

RESUMEN

Post-stroke gait asymmetry leads to inefficient gait and a higher fall risk, often causing limited home and community ambulation. Two types of treadmills are typically used for training focused on symmetry: split-belt and single belt treadmills, but there is no consensus on which treadmill is superior to improve gait symmetry in individuals with stroke. To comprehensively determine which intervention is superior, we considered multiple spatial and temporal gait parameters (step length, stride time, swing time, and stance time) and their symmetries. Ten individuals with stroke underwent a single session of split-belt treadmill training and single belt treadmill training on separate days. The changes in step length, stride time, swing time, stance time and their respective symmetries were compared to investigate which training improves both spatiotemporal gait parameters and symmetries immediately after the intervention and after 5 min of rest. Both types of treadmill training immediately increased gait velocity (0.08 m/s faster) and shorter step length (4.15 cm longer). However, split-belt treadmill training was more effective at improving step length symmetry (improved by 27.3%) without sacrificing gait velocity or step length. However, this step length symmetry effect diminished after a 5-min rest period. Split-belt treadmill training may have some advantages over single belt treadmill training, when targeting step length symmetry. Future research should focus on comparing the long-term effects of these two types of training and examining the duration of the observed effects to provide clinically applicable information.

15.
16.
Huan Jing Ke Xue ; 45(8): 4656-4669, 2024 Aug 08.
Artículo en Chino | MEDLINE | ID: mdl-39168685

RESUMEN

It is of great significance to explore the regional differences of land use carbon emission (LUCE) in the Yangtze River Economic Belt and the path of coordinated emission reduction for regional sustainable development. Based on the LUCE estimation method, this study scientifically calculated the LUCE of the three major urban agglomerations of the Yangtze River Economic Belt (Yangtze River Delta, middle reaches of the Yangtze River, and Chengdu-Chongqing urban agglomeration) from 2010 to 2020. Kernel density estimation and the spatial convergence model were used to study the dynamic evolution, regional differences, and convergence characteristics of LUCE. The results showed that: ① The carbon absorption of forest land, water areas, grassland, and unused land were relatively small in terms of carbon emissions from cultivated land and construction land. The carbon emission of construction land increased gradually, whereas the carbon absorption of four carbon sinks fluctuated little during the study period. ② The core density curves of different urban agglomerations showed different distribution patterns, extensibility, and polarization characteristics but generally tended to be balanced. ③ From 2010 to 2020, the LUCE of the Yangtze River Economic Belt as a whole showed the spatio-temporal characteristics of increasing first and then decreasing and high in the east and low in the west. The LUCE of the central cities of the three urban agglomerations were at the highest level steadily, and stable coupling mechanisms had not been established between the economic development level and the ecological environment. ④ The LUCE of the three urban agglomerations in the Yangtze River Economic Belt all had absolute ß convergence and also had conditional ß convergence under the model control variables such as economic development level, urbanization level, industrial structure, population density, and environmental regulation, etc., and the conditional convergence speed was greater than the absolute convergence speed in each region. The convergence speed of the Yangtze River Delta urban agglomeration was the slowest. The above conclusions provide support for the coordinated emission reduction path of the three urban agglomerations in the Yangtze River Economic Belt and are also conducive to actively and steadily promoting the realization of the goals of carbon peak and carbon neutralization.

17.
Huan Jing Ke Xue ; 45(8): 4636-4647, 2024 Aug 08.
Artículo en Chino | MEDLINE | ID: mdl-39168683

RESUMEN

The administrative units of 17 provinces (autonomous regions and municipalities directly under the Central Government) along the "Belt and Road" were selected as basic spatial units to calculate the provincial traffic carbon emissions along the "Belt and Road" from 2000 to 2021. On the basis of analyzing the spatial and temporal characteristics of traffic carbon emissions by using the spatial autocorrelation method, the spatial and temporal heterogeneity of influencing factors of traffic carbon emissions was explored by combining a fixed-effect regression model and geographic detector. The results show that: ① The provincial traffic carbon emissions along the "Belt and Road" had significant spatial positive correlation, and the overall trend was upward. Additionally, the cluster evolution of high and low values of traffic carbon emissions presented the characteristics of polarization in space. The high value cluster area was mainly distributed in the open leading area, and the low value cluster area was mainly distributed in the core area of the silk road. ② Opening-up level and vehicle ownership were the positive driving factors of carbon emissions from transportation, whereas energy intensity, transportation structure, industry development scale, and government intervention were the negative driving factors. ③ Energy intensity and transportation structure were the main driving factors for the spatial variation of transportation carbon emissions, and most of them would produce nonlinear enhancement when they were spatially superimposed with other factors, that is, there was strong synergy among driving factors. The results showed that the provincial traffic carbon emissions along the "Belt and Road" were affected by the surrounding areas, the influence degree was increasing, and there was synergy between the key driving factors of traffic carbon emissions. Therefore, it is suggested that the provinces along the "Belt and Road" should fully consider the spatial and temporal heterogeneity of traffic carbon emission influencing factors and formulate differentiated traffic carbon emission reduction policies.

18.
Heliyon ; 10(14): e34409, 2024 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-39114044

RESUMEN

It is important to quantitatively assess the level of high-quality development of the Silk Road Economic Belt and the global economy. In the past, many scholars have conducted relevant studies on high-quality economic development, but little attention has been given to China's Silk Road Economic Belt, and there is a lack of dynamic quantitative research on long time series. Based on these findings, we constructed an evaluation index system for the high-quality economic development of China's Silk Road Economic Belt based on statistical data using geographic information technology such as the Moran index and econometric methods such as the entropy weight method and the Mann-Kendall test. Then, we quantitatively depicted the spatial and temporal evolution of the high-quality economic development of China's Silk Road Economic Belt from 2007 to 2021. The results of the study showed that over time, the overall level of high-quality economic development in China's Silk Road Economic Belt and the scores of all dimensions showed a significant upwards trend from 2007 to 2021. Spatially, the level of high-quality economic development in China's Silk Road Economic Belt shows a spatial distribution pattern of being lowest in the North, followed by that in the South, and that in the Centre. Furthermore, there is a clustering distribution of high-quality economic development in China's Silk Road Economic Belt, and there is a spatial spillover effect; science and technology expenditures and the total amount of imports and exports are also crucial in promoting high-quality development of the region's economy and accelerating spatial spillovers from the Silk Road Economic Belt. The results of this study can provide an important scientific basis for the high-quality and sustainable development of the Silk Road Economic Belt in China, as well as be an important reference for related studies in other similar regions in the world.

19.
Clin Genet ; 2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39143497

RESUMEN

ß-Thalassemia is a disease traditionally associated with thalassemia belt countries. Nonetheless, as global migration intensifies, ß-thalassemia-causing variants spread far from their origin. We investigated this process to detect some patterns underlying its course. We analyzed ß-thalassemia-causing variants and the origin of 676 unrelated participants in Moscow, the largest city of Russia, far away from the thalassemia belt. Our analyses revealed that modern Russia has one of the broadest spectra of thalassemia-causing variants: 46 different variants, including two novel ß0 variants. Only a small proportion of the reported pathogenic variants likely originated in the resident subpopulation. Almost half of the variants that supposedly had emerged outside the Russian borders have already been assimilated by (were found in) the resident subpopulation. The primary modern source of immigration transferring thalassemia to a nonthalassemic part of Russia is the Caucasus region. We also found traces of ancient migration flows from non-Caucasus countries. Our data indicate that ß-thalassemia-causing variants are actively spilling over into resident populations of countries outside thalassemia belt regions. Therefore, viewing thalassemia as a disease exclusive to specific ethnic groups creates a mind trap that can complicate the diagnosis.

20.
Curr Biol ; 2024 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-39216486

RESUMEN

To navigate complex environments, walking animals must detect and overcome unexpected perturbations. One technical challenge when investigating adaptive locomotion is measuring behavioral responses to precise perturbations during naturalistic walking; another is that manipulating neural activity in sensorimotor circuits often reduces spontaneous locomotion. To overcome these obstacles, we introduce miniature treadmill systems for coercing locomotion and tracking 3D kinematics of walking Drosophila. By systematically comparing walking in three experimental setups, we show that flies compelled to walk on the linear treadmill have similar stepping kinematics to freely walking flies, while kinematics of tethered walking flies are subtly different. Genetically silencing mechanosensory neurons altered step kinematics of flies walking on the linear treadmill across all speeds. We also discovered that flies can maintain a forward heading on a split-belt treadmill by specifically adapting the step distance of their middle legs. These findings suggest that proprioceptive feedback contributes to leg motor control irrespective of walking speed and that the fly's middle legs play a specialized role in stabilizing locomotion.

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