Miracle-dz/UniFAR-FTUs huggingface dataset:
Perceived organizational support in public and nonprofit organizations: Systematic review and directions for future research

A qualitative meta-analysis of 57 studies (1987–2018) on perceived organizational support in public and nonprofit administrative contexts in various parts of the world revealed 70 related variables within 16 categories. While most reviewed studies sampled employees of the US, the UK, and Iran, in terms of geography, research on the perceived organizational support of public and nonprofit services has been constantly spreading and has been revealing similar findings across countries. While the article questions the generalizability of some findings due to the overreliance on small convenience samples from educational, health, and social work facilities, it supports the generalizability of many found associations even though they happen in various international, organizational, and institutional settings. In particular, in public-serving contexts, perceived organizational support exhibits stable and positive relationships with commitment, intent to stay, motivation, satisfaction derived from job and tasks, well-being, empowerment, reduced stress, work–family balance, and individual growth. Meanwhile, the positive perceptions of support link negatively to unionization and reveal no consistent patterns regarding demographics. The article invites scholars to explore public and nonprofit contexts further, and to test previously overlooked associations like those with leadership type, reward expectancy, public service motivation, and withdrawal activities. Points for practitioners Perceived organizational support should be cultivated in public and nonprofit contexts, as it improves employees’ commitment, motivation, satisfaction, and well-being, and reduces stress. Perceived organizational support might matter for retention more than the content of a job. Employees who feel supported demonstrate better work–family balance and positively perceive many aspects of their organizations. Promoting perceived organizational support helps when intensive workloads and high levels of stress are inadequately compensated. Perceived organizational support can mitigate employees’ burnout caused by the emotional labor of service provision.
Mitigation strategies of underground tunnels against blast loading

An evaluation of mitigation strategies of underground tunnels against explosions is important to the society. Therefore, a small scale tunnel was modeled against blast loading using finite element software ABAQUS. The inelastic behavior of concrete and steel bar has been incorporated through concrete damage plasticity model and Johnson-cook models respectively, available in ABAQUS. The Drucker-Prager model as well as acoustic infinite medium have been used to model the damage behavior of soil and tunnel respectively. The simulated results thus obtained from the present study were compared with the experimental results available in the literature and found in good agreement. Further, the simulations were carried to predict the damage intensity in tunnel in terms of acceleration, impulse velocity, displacement, and Mises stresses. There are many parameters which were taken into consideration to assess the mitigation strategies for the underground tunnels. The critical parameters include the influence of tunnel shapes, lining materials, lining thickness, burial depth of the tunnels, inclusion of a barrier in between the blast source-the tunnel and layered configuration of tunnel lining, and were considered to evaluate the mitigation strategy. It was concluded that the square shape of tunnel was most vulnerable as compared to circular and U-shaped tunnels. It was also concluded that plain concrete monolithic lining as well as layered configuration consisting of Dytherm foam layer between Steel Fiber reinforced Concrete layers, was found to be more vulnerable among the chosen lining materials. Also, the thickness of lining and burial depth of the tunnel found to be a significant role against blast loading.
Current reversal and particle separation in Brownian transport

In transport of micro- or nanosized particles through a confined structure driven by thermal fluctuations and external forcing---a situation that arises commonly in a variety of fields in physical and biological sciences, efficient and controllable separation of particles of different sizes is an important but challenging problem. We study, numerically and analytically, the diffusion dynamics of Brownian particles through the biologically relevant setting of a spatially periodic structure, subject to static and temporally periodic forcing. Molecular dynamical simulations reveal that the mean velocity in general depends sensitively on the particle size. The phenomenon of current reversal is uncovered, where particles larger than or smaller than a critical size diffuse in exactly opposite directions. This striking behavior occurs in a wide range of the forcing amplitude and provides a mechanism to separate the Brownian particles of different sizes. Besides the forcing amplitude, other parametric quantities characterizing the forcing profile, such as the temporal asymmetry, can also be exploited to modulate or control the transport dynamics of particles of different sizes. To gain a theoretical understanding, we exploit the Fick-Jacobs approximation to obtain a one-dimensional description of the diffusion problem, which enables key quantities characterizing the diffusion process, such as the mean velocity, to be predicted. In the regime of weak forcing, a reasonable agreement between theory and numerical results is achieved. Beyond the weakly forcing regime, the diffusion approximation breaks down, causing the theoretical predictions to deviate from the numerical results, into which we provide physical insights. Our findings have potential applications in optimizing transport in microfluidic devices or through biological channels.
Assessing the ecological vulnerability of protected areas by using Big Earth Data

ABSTRACT The ecological vulnerability of global protected areas (PAs) is linked to the 2030 United Nations Sustainable Development Goals. We developed a novel degree of ecological vulnerability (DEV) index based on Big Earth Data to assess the ecological vulnerability of PAs. This is a transparent, repeatable, large-scale and rapid assessment method. We applied the method to case studies of International Union for Conservation of Nature (IUCN) PAs in the basins of the Aral Sea, the Caspian Sea, the Black Sea and the Lake Baikal. Between 2001 and 2015, the spatial pattern of ecological vulnerability in the study area was relatively stable. The Caspian Sea basin and protected landscape/seascape (category V) showed high ecological vulnerability, while the Black Sea basin and wilderness areas (category Ib) showed low ecological vulnerability. Big Earth Data shows great vitality in PAs ecological vulnerability assessment. Strengthening international cooperation is an important means to break the bottleneck of ecological environment and resource endowment in these important international basins.
Bi-Directional Impulse Turbine with Spiral Flow Collector for Tidal Energy Conversion

In order to make use of ocean renewable energy, a combination system of a bi-directional impulse turbine and a bi-directional flow collector for tidal current energy conversion is investigated in this paper. It is the advantage that this turbine system does not need an operation of orientation change according to the reversal of regular tidal orientation when fixed on the seabed. The experimental investigations by using both a circulating water tank and a towing tank showed that the turbine power output could be increased by adopting the flow collector proposed in this study. Then the flow collector with fixed spiral vane named spiral flow collector was investigated by both a circulating water tank test and CFD analysis. The experimental result of the spiral flow collector showed that the performance improvement was found on the increase of axial velocity in the turbine which contributed to the increase of the turbine power output. The results of CFD analysis showed that 180 deg of the skew angle of the fixed spiral vane was suitable in view of the angular moment at the turbine inlet in this case.
Synthesis, Characterization, and Synergistic Effects of Modified Biochar in Combination with α-Fe2O3 NPs on Biogas Production from Red Algae Pterocladia capillacea

This study is the first work that evaluated the effectiveness of unmodified (SD) and modified biochar with ammonium hydroxide (SD-NH2) derived from sawdust waste biomass as an additive for biogas production from red algae Pterocladia capillacea either individually or in combination with hematite α-Fe2O3 NPs. Brunauer, Emmett, and Teller, Fourier transform infrared, thermal gravimetric analysis, X-ray diffraction, transmission electron microscopy, Raman, and a particle size analyzer were used to characterize the generated biochars and the synthesized α-Fe2O3. Fourier transform infrared (FTIR) measurements confirmed the formation of amino groups on the modified biochar surface. The kinetic research demonstrated that both the modified Gompertz and logistic function models fit the experimental data satisfactorily except for 150 SD-NH2 alone or in combination with α-Fe2O3 at a concentration of 10 mg/L. The data suggested that adding unmodified biochar at doses of 50 and 100 mg significantly increased biogas yield compared to untreated algae. The maximum biogas generation (219 mL/g VS) was obtained when 100 mg of unmodified biochar was mixed with 10 mg of α-Fe2O3 in the inoculum.
Large-Scale Patterns of Soil Nematodes across Grasslands on the Tibetan Plateau: Relationships with Climate, Soil and Plants

Soil nematodes are important contributors to soil biodiversity. Nonetheless, the distribution patterns and environmental drivers of soil nematode communities are poorly understood, especially at the large scale, where multiple environmental variables covary. We collected 520 soil samples from 104 sites representing alpine meadow and steppe ecosystems. First, we explored the soil nematode community characteristics and compared community patterns between the ecosystems. Then, we examined the contributions of aboveground and belowground factors on these patterns. The genus richness and abundance of nematodes on the Tibetan Plateau are lower than other alpine ecosystems, but are comparable to desert or polar ecosystems. Alpine meadows supported a higher nematode abundance and genus richness than alpine steppes; bacterial-based energy channels were pre-dominant in both the ecosystems. Soil factors explained the most variation in the soil nematode community composition in the alpine meadows, while plant factors were as essential as soil factors in the alpine steppes. Unexpectedly, the climate variables barely impacted the nematode communities. This is the first study to explore the spatial patterns of soil nematode compositions on the Tibetan Plateau, and we found that the contributions of climate, plants, and soil properties on soil nematodes community were essentially different from the previous knowledge for well-studied plant and animal communities.
Dual‐band dual‐polarized microstrip antenna at S‐ and X‐bands using feed technique for suppression of interference due to higher order modes

This paper presents a novel configuration for dual band dual polarized (DBDP) microstrip antenna (MSA) at S‐and X‐bands. The antenna at S‐ and X‐bands with high frequency ratio between the two bands utilizes the proposed configuration which uses the MSA at S band as ground for 2 × 2 MSA array at X‐band, thereby making it compact. It simultaneously achieves better gain, bandwidth, radiation pattern stability and good isolation. The proposed DBDP antenna configuration overcomes the issue of interference between higher order mode due to first frequency with second frequency using proposed feed technique. It uses electromagnetic coupling (EMCP) technique to give measured bandwidth ( ∣S11∣≤ −10 dB) from 2.3 to 2.6 GHz ( 12.2% ) at S band and from 7.8 to 8.3 GHz (6.2%) at X‐band. The measured isolation between the two orthogonal ports is better than 28 dB at 2.5 GHz and 32 dB at 8.2 GHz. The gain at 2.5 GHz is 7.4 dBi and at 8 GHz, it is 10 dBi. Such an antenna can be used for telemetry, tracking and command application in satellite communication, etc.
Are former commercial farmers in Zimbabwe satisfied with the global compensation agreement?

ABSTRACT Zimbabwe’s new administration indicated its willingness to end the compensation dispute, which lasted for two decades with former commercial farmers (FCFs), by signing the global compensation agreement (GCA). In the agreement, the Government of Zimbabwe (GoZ) offered to pay the sum of 3.5 billion, United States Dollars (USD) to the FCFs for their expropriated farmlands. A study carried out by the Valuation Consortium (Valcon) before the GCA signing revealed that most of the FCFs accepted the compensation offered by the expropriating authority. Thus far, no study has been done to assess the level of satisfaction of the affected FCFs, with the GCA provisions. Therefore, this study evaluated the views of FCFs and members of the Compensation Committee (MsCC) on this subject. Data were collected through a questionnaire survey which was mailed directly to the Chairperson of the FCFs, who sent it to other members to respond to issues raised. The study found mixed views by the FCFs on their levels of satisfaction with the GCA. Thus, the study concluded that compensation offered was not entirely satisfactory because it did not include accruals for delayed payment, professional fees, and a detailed breakdown of the compensable heads of claim.
Effect of drying on the chemical composition of Çakıldak (cv) hazelnuts during storage

The hazelnut (Corylus avellana L.) is one of the most popular tree nuts in the world. The proper selection of drying methods is necessary to prevent oil oxidation which will influence the overall nut quality during storage. The aim of this study was to determine the effects of sun drying (SD) and artificial dryingied (AD) on the chemical traits of hazelnuts during long–term storage. Protein, lipid and moisture contents, water activity, fatty acid composition, sum of fatty acids, and oil oxidation properties were determined over 24 months’ storage (2015–2017) at 20–25 °C and 70–90% relative humidity. The results showed that monounsaturated fatty acids (MUFA) was the main fatty acid group (81.55–83.38%) followed by polyunsaturated (PUFA; 10.39–11.57%) and saturated fatty acids (SFA; 5.75–6.60%). The samples dried by AD had more SFA (5.86%) and MUFA (83.11%) than the SD samples. At the end of storage, the lowest free fatty acid, and peroxide value (0.52%–1.45 meqO2·kg-1, respectively), and the highest oleic/linoleic acidity ratio (7.76) were found from AD. Therefore, AD appears to be more promising for hazelnut drying.
Prospect of Managing Invasive Plants by Native Insect Herbivores: A Case Study of Kashmir Himalaya

Biological invasions are considered a massive threat to native biodiversity engulfing both terrestrial and aquatic ecosystems worldwide while having cascading ecological and economic effects on the invaded regions. Kashmir Himalaya, an important constituent of the biodiversity hotspot, is heavily invaded by invasive alien plants. An inventory of species diversity of invasive plants and native insect herbivores was carried out in different terrestrial habitats of Kashmir Himalaya in the years 2018-19 and 2019-20. The results showed maximum value (3.39) of Shannon’s diversity index at district Kupwara with minimum value (2.967) at district Srinagar. Margalef Index attained maximum value (5.966) at district Bandipora and a minimum value (4.724) at district Srinagar. Our data revealed maximum value of evenness (0.732) in district Baramulla with minimum value (0.650) at district Pulwama. Similarly, district Baramulla of North Kashmir showed highest Simpson value (0.957) while district Srinagar with minimum value (0.934). Plantago major belonging to the family Plantaginaceae was found to be the most dominant invasive plant species followed by Taraxacum officinale of family Asteraceae. Altica himensis was the most abundant native insect herbivore feeding on almost all invasive plant species with maximum damage on Rumex hastatus of Polygonaceae family. A total of 42 invasive plant species were recorded during the entire study period, of which 12 are worst invaders namely Plantago major, Taraxacum officinale, Trifolium rapens, Trifolium pratense, Plantago lanceolata, Cyanodon dactylon, Anthemis cotula, Clinopodium umbrosum, Ranunculus arvensis, Veronica persica, Dactylis glomerata and Vulpia myuros. A total of 14 native insect herbivores species were identified on these invasive alien plants, of which the prospect of 06 insect herbivore species as potential biocontrol agents is promising. Among the collected insect herbivores, a few namely Chrysolina herbacea, Melanoplus differentialis, Pieris brassicae and Altica himensis are being reared on native and invasive plant species under laboratory conditions. Preliminary results of these native insect herbivors as potential biocontrol agents against invasive alien plants are encouraging. These novel, non-coevolved insect herbivores can not only be exploited to control the spread of invasive plants but could also thwart huge economic losses associated with the management of invasive plants worldwide.
Theory of Mind Deficit and Its Neural Dysfunction in Schizophrenia

Social cognition refers to how people perceive themselves and others in the social world (including human perception, causal attribution of self and others, and the process of bringing social judgment into decision-making). Theory of Mind (ToM) refers to an individual’s ability to understand others’ mental state. These two abilities bring people a better understanding of others and life. Without these two important components, people may soon fall into the predicament of social interaction. However, schizophrenia is a destructive mental illness that damages mental and social functions and often leads to the development of comorbidities. Nowadays, as researchers mainly tap into the symptoms of schizophrenia, theory of mind doesn't get enough attention, especially to social cognition. Shown in our paper will be the development of social skills and the relationship between theory of mind and schizophrenia. This article shows The development of social skills and the relationship between theory of mind and schizophrenia. This essay will delve into three aspects: 1) whether the deficit exists in the theory of mind; 2) Different levels in mentalizing in individuals with schizophrenia; 3) and the effect of damage of neuron to ToM in schizophrenia. There have been many studies on schizophrenia, but there are still some limitations. From a previous review of existing studies, we found that patients with schizophrenia have a deficit in ToM processing, and this deficit is related to dysfunction of certain brain areas. However, the relationship between the deficit in ToM processing and brain dysfunction is not clear yet. Future studies can be focused on the possibilities of treatment restoring dysfunctional brain regions or exercise improving ToM processing. Chronical studies are necessary to study the natural changes in neural activity and ToM development in patients and the human intervention’s consequence.
Spatial distribution of organic geochemical record in the core sediments along the prominent zones of Central Kerala, India

Abstract The study investigated the origin, quality, composition, and trophic state of sedimentary organic matter (SOM) in core samples collected from three zones (Munambam, Vypin, Chettuva) of Central Kerala, India. The SOM exhibited enhanced levels for carbohydrate (CHO) followed by protein (PRT) and lipid (LPD); and phytopigment in the sediment followed the trend: Pheophytin (Pheo) > Carotenoid (carotend) > Chlorophyll-a (Chl-a) > Chlorophyll-b (Chl-b) > Chlorophyll-c (Chl-c). The low PRT: CHO ratio indicated a large amount of nonliving or aged organic matter in the sedimentary environment. Whereas the low Chl-a: Pheo ratio interprets the abundance of dead plant materials in the sediments. Correlation matrix showed strong association between organic matter and clay fraction of sediment. Furthermore, the strong interrelationships between biochemical components and chloropigments in all the zones suggested that SOM is strictly connected to phytodetritus deposition. Vypin zone near Vallarpadam Container Terminal revealed the presence of high biopolymeric carbon content. Besides, the PRT: CHO > 1 reflected the eutrophic condition at the same site but the low PRT: CHO ratio in the remaining stations displays the oligotrophic nature.
How to Build a 2D and 3D Aerial Multispectral Map? - All Steps Deeply Explained

The increased development of camera resolution, processing power, and aerial platforms helped to create more cost-efficient approaches to capture and generate point clouds to assist in scientific fields. The continuous development of methods to produce three-dimensional models based on two-dimensional images such as Structure from Motion (SfM) and Multi-View Stereopsis (MVS) allowed to improve the resolution of the produced models by a significant amount. By taking inspiration from the free and accessible workflow made available by OpenDroneMap, a detailed analysis of the processes is displayed in this paper. As of the writing of this paper, no literature was found that described in detail the necessary steps and processes that would allow the creation of digital models in two or three dimensions based on aerial images. With this, and based on the workflow of OpenDroneMap, a detailed study was performed. The digital model reconstruction process takes the initial aerial images obtained from the field survey and passes them through a series of stages. From each stage, a product is acquired and used for the following stage, for example, at the end of the initial stage a sparse reconstruction is produced, obtained by extracting features of the images and matching them, which is used in the following step, to increase its resolution. Additionally, from the analysis of the workflow, adaptations were made to the standard workflow in order to increase the compatibility of the developed system to different types of image sets. Particularly, adaptations focused on thermal imagery were made. Due to the low presence of strong features and therefore difficulty to match features across thermal images, a modification was implemented, so thermal models could be produced alongside the already implemented processes for multispectral and RGB image sets.