cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Rural-urban migration : a case study of the People’s Republic of China
Creators: name: Chung, Frances Po-Chu
Publisher: name: University of British Columbia
Year: 2010

description: The People's Republic of China is still a paradox: an old country yet a new nation, a society in evolution from a revolution while it is still in revolution. Before 1949, China was a war-torn country. Dejection and hunger prevailed. Today, there is a clearly apparent feeling of security, well-being and national pride. This thesis is primarily based on library research to find out more about China, focussing on China's response to its rural-urban movement. The theme is: "Has China, as a socialist economy practising command planning, been able to better contain and manage urban growth, particularly that due to rural-urban migration, than Third World market economies." The Republic of Indonesia is selected as a control because it too gained independence and full sovereignty in 1949. It is also classified as a Third World developing country which inherited a backward economy and a big population. The major difference is that China is a socialist economy while Indonesia is a market economy. A comparison of the urbanization record of the two countries reveals the following characteristics: 1) The annual rate of urban growth is not significantly dissimilar. 2) The stage of urbanization is similar. 3) The two countries differ in the management of the distribution of urban growth. China managed to reduce its primacy index and control tlie growth of its two largest cities: Shanghai and Peking. Indonesia is still struggling with the primacy of Djakarta. 4) After the Great Proletarian Cultural Revolution, 1966-68, China adopted the bottom-up "agropolitan" approach to bring industry and social services to the rural communes. Indonesia has begun discussing the concept, but has not implemented the strategy yet. In other words, China adopted two major strategies in directing the distribution of its urban growth: 1) Concentrated Decentralization: directing growth away from the largest cities (particularly former treaty ports) to medium-sized urban centres in the inland; 2) The Agropolitan Approach: dispersing industry and other urban functions more widely into the rural areas through the institution of the commune. The conclusion drawn is that China, as a socialist economy, achieved relatively better results in managing and containing urban growth than Indonesia, a market economy. China may not be able to model the world in its response to rural-urban migration, but the strategies it implemented are worthy of serious consideration by other Third World countries.
Crash Report Data Analysis for Creating Scenario-Wise, Spatio-Temporal Attention Guidance to Support Computer Vision-based Perception of Fatal Crash Risks
Creators: name: Li, Yu
name: Karim, Muhammad Monjurul
name: Qin, Ruwen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applications (stat.AP)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Reducing traffic fatalities and serious injuries is a top priority of the US Department of Transportation. The computer vision (CV)-based crash anticipation in the near-crash phase is receiving growing attention. The ability to perceive fatal crash risks earlier is also critical because it will improve the reliability of crash anticipation. Yet, annotated image data for training a reliable AI model for the early visual perception of crash risks are not abundant. The Fatality Analysis Reporting System contains big data of fatal crashes. It is a reliable data source for learning the relationship between driving scene characteristics and fatal crashes to compensate for the limitation of CV. Therefore, this paper develops a data analytics model, named scenario-wise, Spatio-temporal attention guidance, from fatal crash report data, which can estimate the relevance of detected objects to fatal crashes from their environment and context information. First, the paper identifies five sparse variables that allow for decomposing the 5-year fatal crash dataset to develop scenario-wise attention guidance. Then, exploratory analysis of location- and time-related variables of the crash report data suggests reducing fatal crashes to spatially defined groups. The group's temporal pattern is an indicator of the similarity of fatal crashes in the group. Hierarchical clustering and K-means clustering merge the spatially defined groups into six clusters according to the similarity of their temporal patterns. After that, association rule mining discovers the statistical relationship between the temporal information of driving scenes with crash features, for each cluster. The paper shows how the developed attention guidance supports the design and implementation of a preliminary CV model that can identify objects of a possibility to involve in fatal crashes from their environment and context information.
description: 20 pages, 14 figures, submitted and accepted by Accident Analysis & Prevention
Generation of self-replicating airway organoids from the cave nectar bat Eonycteris spelaea as a model system for studying host-pathogen interactions in the bat airway epithelium
Creators: name: Chan, Louisa L.Y.
name: Gamage, Akshamal M.
name: Tan, Chee Wah
name: Tan, Kai Sen
name: Liu, Jing
name: Tay, Douglas Jie Wen
name: Foo, Randy Jee Hiang
name: Rénia, Laurent
name: Wang, De Yun
name: Wang, Lin-Fa
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Bats are reservoir hosts for various zoonotic viruses with pandemic potential in humans and livestock. In vitro systems for studying bat host-pathogen interactions are of significant interest. Here, we establish protocols to generate bat airway organoids (AOs) and airway epithelial cells differentiated at the air-liquid interface (ALI-AECs) from tracheal tissues of the cave-nectar bat Eonycteris spelaea. In particular, we describe steps which enable laboratories that do not have access to live bats to perform extended experimental work upon procuring an initial batch of bat primary airway tissue. Complete mucociliary differentiation required treatment with IL-13. E. spelaea ALI-AECs supported productive infection with PRV3M, an orthoreovirus for which Pteropodid bats are considered the reservoir species. However, these ALI-AECs did not support SARS-CoV-2 infection, despite E. spelaea ACE2 receptor being capable of mediating SARS-CoV-2 spike pseudovirus entry. This work provides critical model systems for assessing bat species specific virus susceptibility and the reservoir likelihood for emerging infectious agents.
Graph Attention Layer Evolves Semantic Segmentation for Road Pothole Detection: A Benchmark and Algorithms
Creators: name: Fan, Rui
name: Wang, Hengli
name: Wang, Yuan
name: Liu, Ming
name: Pitas, Ioannis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Existing road pothole detection approaches can be classified as computer vision-based or machine learning-based. The former approaches typically employ 2-D image analysis/understanding or 3-D point cloud modeling and segmentation algorithms to detect road potholes from vision sensor data. The latter approaches generally address road pothole detection using convolutional neural networks (CNNs) in an end-to-end manner. However, road potholes are not necessarily ubiquitous and it is challenging to prepare a large well-annotated dataset for CNN training. In this regard, while computer vision-based methods were the mainstream research trend in the past decade, machine learning-based methods were merely discussed. Recently, we published the first stereo vision-based road pothole detection dataset and a novel disparity transformation algorithm, whereby the damaged and undamaged road areas can be highly distinguished. However, there are no benchmarks currently available for state-of-the-art (SoTA) CNNs trained using either disparity images or transformed disparity images. Therefore, in this paper, we first discuss the SoTA CNNs designed for semantic segmentation and evaluate their performance for road pothole detection with extensive experiments. Additionally, inspired by graph neural network (GNN), we propose a novel CNN layer, referred to as graph attention layer (GAL), which can be easily deployed in any existing CNN to optimize image feature representations for semantic segmentation. Our experiments compare GAL-DeepLabv3+, our best-performing implementation, with nine SoTA CNNs on three modalities of training data: RGB images, disparity images, and transformed disparity images. The experimental results suggest that our proposed GAL-DeepLabv3+ achieves the best overall pothole detection accuracy on all training data modalities.
description: accepted as a regular paper to IEEE Transactions on Image Processing
Spiders in random environment
Creators: name: Gallesco, Christophe
name: Muller, Sebastian
name: Popov, Serguei
name: Vachkovskaia, Marina
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37

description: A spider consists of several, say $N$, particles. Particles can jump independently according to a random walk if the movement does not violate some given restriction rules. If the movement violates a rule it is not carried out. We consider random walk in random environment (RWRE) on $\Z$ as underlying random walk. We suppose the environment $ω=(ω_x)_{x \in \Z}$ to be elliptic, with positive drift and nestling, so that there exists a unique positive constant $κ$ such that $\E[((1-ω_0)/ω_0)^κ]=1$. The restriction rules are kept very general; we only assume transitivity and irreducibility of the spider. The main result is that the speed of a spider is positive if $κ/N>1$ and null if $κ/N<1$. In particular, if $κ/N <1$ a spider has null speed but the speed of a (single) RWRE is positive.
description: 25 pages, 5 figures
On the Utility of Transmission Color Analysis I: Differentiating Super-Earths and Sub-Neptunes
Creators: name: Sotzen, Kristin S.
name: Stevenson, Kevin B.
name: May, Erin M.
name: Batalha, Natasha E.
name: Izenberg, Noam R.
name: Horst, Sarah M.
name: Tinsman, Calley L.
name: Lisse, Carey M.
name: Lewis, Nikole K.
name: Goyal, Jayesh M.
name: Linden, Joseph J.
name: Mandt, Kathleen E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The majority of exoplanets found to date have been discovered via the transit method, and transmission spectroscopy represents the primary method of studying these distant worlds. Currently, in-depth atmospheric characterization of transiting exoplanets entails the use of spectrographs on large telescopes, requiring significant observing time to study each planet. Previous studies have demonstrated trends for solar system worlds using color-color photometry of reflectance spectra, as well as trends within transmission spectra for hot Jupiters. Building on these concepts, we have investigated the use of transmission color photometric analysis for efficient, coarse categorization of exoplanets and for assessing the nature of these worlds, with a focus on resolving the bulk composition degeneracy to aid in discriminating super-Earths and sub-Neptunes. We present our methodology and first results, including spectrum models, model comparison frameworks, and wave band selection criteria. We present our results for different transmission "color" metrics, filter selection methods, and numbers of filters. Assuming noise-free spectra of isothermal atmospheres in chemical equilibrium, with our pipeline, we are able to constrain atmospheric mean molecular weight in order to distinguish between super-Earth and sub-Neptune atmospheres with >90$\%$ overall accuracy using as few as two specific low-resolution filter combinations. We also found that increasing the number of filters does not substantially impact this performance. This method could allow for broad characterization of large numbers of planets much more efficiently than current methods permit, enabling population and system-level studies. Additionally, data collected via this method could inform follow-up observing time by large telescopes for more detailed studies of worlds of interest.
SARS-CoV-2 infection-induced immunity reduces rates of reinfection and hospitalization caused by the Delta or Omicron variants
Creators: name: de La Vega, Marc-Antoine
name: Polychronopoulou, Efstathia
name: XIII, Ara
name: BSc, Zhe Ding
name: BSc, Qixing Liu
name: Lan, Jiaming
name: Nepveu-Traversy, Marie-Edith
name: Fausther-Bovendo, Hugues
name: Zaidan, Mohammed F.
name: Wong, Gary
name: Sharma, Gulshan
name: Kobinger, Gary P.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: During a pandemic, effective vaccines are typically in short supply, particularly at onset intervals when the wave is accelerating. We conducted an observational, retrospective analysis of aggregated data from all patients who tested positive for SARS-CoV-2 during the waves caused by the Delta and Omicron variants, stratified based on their known previous infection and vaccination status, throughout the University of Texas Medical Branch (UTMB) network. Next, the immunity statuses within each medical parameter were compared to naïve individuals for the effective decrease of occurrence. Lastly, we conducted studies using mice and pre-pandemic human samples for IgG responses to viral nucleocapsid compared to spike protein toward showing a functional component supportive of the medical data results in relation to the immunity types. During the Delta and Omicron waves, both infection-induced and hybrid immunities were associated with a trend of equal or greater decrease of occurrence than vaccine-induced immunity in hospitalizations, intensive care unit admissions, and deaths in comparison to those without pre-existing immunity, with hybrid immunity often trending with the greatest decrease. Compared to individuals without pre-existing immunity, those vaccinated against SARS-CoV-2 had a significantly reduced incidence of COVID-19, as well as all subsequent medical parameters. Though vaccination best reduces health risks associated with initial infection toward acquiring immunity, our findings suggest infection-induced immunity is as or more effective than vaccination in reducing the severity of reinfection from the Delta or Omicron variants, which should inform public health response at pandemic onset, particularly when triaging towards the allotment of in-demand vaccinations.
Crytea sanguinator
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Crytea
Crytea sanguinator

description: Crytea sanguinator (ROSSI, 1794)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 20.iv.-5.v.
D i s t r i b u t i o n: Transpalaearctic, known from Georgia (RIEDEL & JAPOSHVILI 2021).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 100, DOI: 10.5281/zenodo.10415120
Hybrid immunity and protection against infection during the Omicron wave in Malta
Creators: name: Cauchi, John Paul
name: Dziugyte, Ausra
name: Borg, Maria-Louise
name: Melillo, Tanya
name: Zahra, Graziella
name: Barbara, Christopher
name: Souness, Jorgen
name: Agius, Steve
name: Calleja, Neville
name: Gauci, Charmaine
name: Vassallo, Pauline
name: Baruch, Joaquin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: By December 2021, administration of the third dose of COVID-19 vaccinations coincided with the spread of the Omicron variant in Europe. Questions had been raised on protection against infection conferred by previous vaccination and/or infection. Our study population included 252,433 participants from the COVID-19 vaccination registry in Malta. Data were then matched with the national testing database. We collected vaccination status, vaccine brand, vaccination date, infection history, and age. Using logistic regression, we examined different combinations of vaccine dose, prior infection status and time, and the odds of infection during the period when the Omicron variant was the dominant variant in Malta. Participants infected with Sars-Cov-2 prior to the Omicron wave had a significantly lower odds of being infected with the Omicron variant. Additionally, the more recent the infection and the more recent the vaccination, the lower the odds of infection. Receiving a third dose within 20 weeks of the start of the Omicron wave in Malta offered similar odds of infection as receiving a second dose within the same period. Time since vaccination was a strong determinant against infection, as was previous infection status and the number of doses taken. This finding reinforces the importance of future booster dose provision especially to vulnerable populations.
Functional and neural mechanisms of intertemporal choice
Creators: name: Sellitto, Manuela <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: M-PSI/02 Psicobiologia e psicologia fisiologica

description: People are daily faced with intertemporal choice, i.e., choices differing in the timing of their consequences, frequently preferring smaller-sooner rewards over larger-delayed ones, reflecting temporal discounting of the value of future outcomes. This dissertation addresses two main goals. New evidence about the neural bases of intertemporal choice is provided. Following the disruption of either the medial orbitofrontal cortex or the insula, the willingness to wait for larger-delayed outcomes is affected in odd directions, suggesting the causal involvement of these areas in regulating the value computation of rewards available with different timings. These findings were also supported by a reported imaging study. Moreover, this dissertation provides new evidence about how temporal discounting can be modulated at a behavioral level through different manipulations, e.g., allowing individuals to think about the distant time, pairing rewards with aversive events, or changing their perceived spatial position. A relationship between intertemporal choice, moral judgements and aging is also discussed. All these findings link together to support a unitary neural model of temporal discounting according to which signals coming from several cortical (i.e., medial orbitofrontal cortex, insula) and subcortical regions (i.e., amygdala, ventral striatum) are integrated to represent the subjective value of both earlier and later rewards, under the top-down regulation of dorsolateral prefrontal cortex. The present findings also support the idea that the process of outcome evaluation is strictly related to the ability to pre-experience and envision future events through self-projection, the anticipation of visceral feelings associated with receiving rewards, and the psychological distance from rewards. Furthermore, taking into account the emotions and the state of arousal at the time of decision seems necessary to understand impulsivity associated with preferring smaller-sooner goods in place of larger-later goods.
Supplementary Figures and Tables from Risso's dolphins perform spin dives to target deep-dwelling prey
Creators: name: Visser, Fleur
name: Keller, Onno A.
name: Oudejans, Machiel G.
name: Nowacek, Douglas P.
name: Kok, Annebelle C. M.
name: Huisman, Jef
name: Sterck, Elisabeth H. M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Supplementary Figures and Tables
Physiology of secretion of the segmented malpighian tubules of Cenocorixa Bifida (Hemiptera-Insecta)
Creators: name: Szibbo, Catharine Mary McMahon
Publisher: name: University of British Columbia
Year: 2010

description: The secretion of the segmented Malpighian tubules of Cenocorixa bifida (Hungerford) was studied in vitro to determine if the Malpighian tubules of an aquatic predator function in a similiar manner to those of terrestrial insects, and to determine the importance of the different morphological segments in the ion transport of the whole tubule. Fluid secretion in the Malpighian tubules of C. bifida appears to be governed by the same in vitro factors found important in other insects. As in other insects, the secreted fluid is isosmotic to the bathing medium, while the potassium is hypertonic and sodium hypotonic over a wide range of bathing medium sodium-potassium ratios. At bathing medium potassium concentrations close to that of the insect's haemolymph, potassium and sodium are isotonic in the secreted fluid. The Malpighian tubules of C. bifida produce alkaline secretion when rate of secretion is increased by addition of cyclic AMP. Differences in ion and fluid transport between the segments of the Malpighian tubules of C. bifida are statistically significant, but only slight. This correlates with the lack of morphological differences in apical and basal infoldings between the segments. The major exceptions to this trend are (1) the high pH of Segment II fluid, (2) the transport of dyes by Segment III and (3) the production of 'secretory granules' by Segment III. Segment III is the most distinct ultrastructurally.
title: Deriving Personas Based on Attitudes to Interruption and Information Overload
Creators: name: Goddard, David
name: Mulholland, Paul
name: Piccolo, Lara
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2019

description: Ubiquitous devices provide users with notifications that continue to blur the distinction between work and personal activities. This research aims to understand how users manage - and would like to manage - such notifications in order to design better support. A methodology was developed to create design scenarios from a survey of people’s attitudes and perceptions. The survey asked participants how they interact with various collaborative, social and communication services, and about their views regarding trust in those services, privacy and how they have experienced information overload. A two-step clustering technique was then used to identify distinct archetypes within the respondents resulting in 5 personas. A technique uniting personas and empathy map has been applied to model typical behaviours, goals and pain points, which will inform the design of a solution to manage interruptions and information overload.
On ergodic behavior of $p$-adic dynamical systems
Creators: name: Gundlach, Matthias
name: Khrennikov, Andrei
name: Lindahl, Karl-Olof
Publisher: name: arXiv
Year: 2008
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 12J25; 37B05; 37A25

description: Monomial mappings, $x\mapsto x^n$, are topologically transitive and ergodic with respect to Haar measure on the unit circle in the complex plane. In this paper we obtain an anologous result for monomial dynamical systems over $p-$adic numbers. The process is, however, not straightforward. The result will depend on the natural number $n$. Moreover, in the $p-$adic case we never have ergodicity on the unit circle, but on the circles around the point 1.
Ctenichneumon panzeri
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Ctenichneumon
Ctenichneumon panzeri

description: Ctenichneumon panzeri (W ESMAEL, 1845)
M a t e r i a l e x a m i n e d: Trap 4: 1♀ 20.iv.-5.v.
D i s t r i b u t i o n: Transpalaearctic and Oriental, known from Georgia (DJANELIDZE 1967).
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 100, DOI: 10.5281/zenodo.10415120
Millimeter interferometry of W3 IRS5: A Trapezium in the making
Creators: name: Rodón, J. A.
name: Beuther, H.
name: Megeath, T.
name: van der Tak, F. F. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although most young massive stars appear to be part of multiple systems, it is poorly understood how this multiplicity influences the formation of massive stars. The high-mass star-forming region W3 IRS5 is a prime example of a young massive cluster where the cluster center is resolved into multiple subsources at cm and infrared wavelengths, a potential proto-Trapezium system. The region W3 IRS5 was mapped with the PdBI at 1.4mm and 3.4mm in the AB configurations, observing shock-tracing SiO and SO_2 emission. In the continuum we detect five sources, one of them for the first time, while counterparts were detected in the NIR, MIR or at radio wavelengths for the remaining four sources. Three of the detected sources are within the inner 2100AU, where the protostellar number density exceeds 10^6 protostars pc^-3 assuming spherical symmetry. Lower limits for the circumstellar masses of the detected sources were calculated, although they were strongly affected by the spatial filtering of the interferometer. However, the projected separations of the sources ranging between ~750 and ~4700AU indicate a multiple, Trapezium-like system. We detected five molecular outflows in SiO, two of them nearly in the line of sight direction, which allowed us to see the collapsing protostars in the NIR through the cavities carved by the outflows. The SO_2 velocity structure indicates a rotating, bound system, and we find tentative signatures of converging flows as predicted by the gravoturbulent star formation and converging flow theories. The obtained data strongly indicate that the clustered environment has a major influence on the formation of high-mass stars; however, our data do not clearly allow us to distinguish whether the ongoing star-forming process follows a monolithic collapse or a competitive accretion mechanism.
description: 10 pages, 6 figures (11 files), Astronomy & Astrophysics in press, for high-resolution version see http://www.mpia.de/homes/beuther/papers.html
Stream sediments analysis for geochemical mapping of Romagna Apennines (Northern Italy): monitoring and management tool of environmental resources at various scales
Creators: name: Lancianese, Valerio <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: GEO/08 Geochimica e vulcanologia

description: Geochemical mapping is a valuable tool for the control of territory that can be used not only in the identification of mineral resources and geological, agricultural and forestry studies but also in the monitoring of natural resources by giving solutions to environmental and economic problems. Stream sediments are widely used in the sampling campaigns carried out by the world's governments and research groups for their characteristics of broad representativeness of rocks and soils, for ease of sampling and for the possibility to conduct very detailed sampling
In this context, the environmental role of stream sediments provides a good basis for the implementation of  environmental management measures, in fact the composition of river sediments is an important factor in understanding the complex dynamics that develop within catchment basins therefore they represent a critical environmental compartment: they can persistently incorporate pollutants after a process of contamination and release into the biosphere if the environmental conditions change. It is essential to determine whether the concentrations of certain elements, in particular heavy metals, can be the result of natural erosion of rocks containing high concentrations of specific elements or are generated as residues of human activities related to a certain study area. 
This PhD thesis aims to extract from an extensive database on stream sediments of the Romagna rivers the widest spectrum of informations. The study involved low and high order stream in the mountain and hilly area, but also the sediments of the floodplain area, where intensive agriculture is active. The geochemical signals recorded by the stream sediments will be interpreted in order to reconstruct the natural variability related to bedrock and soil contribution, the effects of the river dynamics, the anomalous sites, and with the calculation of background values be able to evaluate  their level of degradation and predict the environmental risk.
title: Towards Expertise-based Intuition Sharing
Creators: name: Weidt Neiva, Frâncila
name: Borges, Marcos R.S.
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2019

description: Expertise-based intuition is a form of ‘knowing’ where experience is translated into action through non-deliberative solutions. This cognitive process provides opportunities for sharing and learning in the social context of communities of practice. To address this opportunity, we suggested computational artifacts and promoted a discussion about the implications of expertise-based intuition sharing. This study concludes that the subconscious patterns where intuition relies on are charged with social-cultural context generating both potentials and barriers to encourage the sharing practice. For one side, it can contribute to positive transformations in the communities. For the other side, it can reinforce the status quo and aggravates social inequalities being imperative the commitment with a design imbued with sensitivity to social aspects.
Ctenichneumon repentinus
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Ctenichneumon
Ctenichneumon repentinus

description: Ctenichneumon repentinus (GRAVENHORST, 1820)
M a t e r i a l e x a m i n e d: Trap15: 1♀ 25.viii.-8.ix.
Remark: Flagellum slender, temple distinctly narrowed behind eye. Mesosoma including scutellum entirely black. Legs black; fore femur apically and fore tibia frontally yellowish.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (ALIEV 1988), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 101, DOI: 10.5281/zenodo.10415120
Transmission network and phylogenetic analysis reveal older male-centered transmission of CRF01_AE and CRF07_BC in Guangxi, China
Creators: name: Zhang, Fei
name: Yang, Yao
name: Liang, Na
name: Liang, Huayue
name: Chen, Yongzheng
name: Lin, Zhaosen
name: Chen, Tongbi
name: Tan, Wenling
name: Yang, Yuan
name: Huang, Rongye
name: Yao, Lin
name: Chen, Fuling
name: Huang, Xingzhen
name: Ye, Li
name: Liang, Hao
name: Liang, Bingyu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: In China, the number of newly reported HIV infections in older people is increasing rapidly. However, clear information on the impact of older people on HIV transmission is limited. This study aims to reveal the local HIV transmission patterns, especially how older people affect virus transmission. Subtype analysis based on available pol sequences obtained from HIV patients revealed that CRF01_AE and CRF08_BC were predominant in patients aged <50 years, whereas CRF01_AE was predominant in older people aged ≥50 years (χ2 = 29.299, P < 0.001). A total of 25 patients (5.2%, 25/484) were identified with recent HIV infection (RHI). Transmission network analysis found 267 genetically linked individuals forming 55 clusters (2–63 individuals), including 5 large transmission clusters and 12 transmission clusters containing RHI. Bayesian phylogenetic analysis suggested that transmission events in CRF01_AE and CRF07_BC were centred on older males, while transmission events in CRF08_BC were centred on younger males. Multivariable logistic regression analysis showed that older people were more likely to cluster within networks (AOR = 2.303, 95% CI: 1.012–5.241) and that RHI was a significant factor associated with high linkage (AOR = 3.468, 95% CI: 1.315–9.146). This study provides molecular evidence that older males play a central role in the local transmission of CRF01_AE and CRF07_BC in Guangxi. Given the current widespread of CRF01_AE and CRF07_BC in Guangxi, there is a need to recommend HIV screening as part of free national medical examinations for older people to improve early detection, timely treatment, and further reduce second-generation transmission.
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÐºÐ°Ð¿Ð»ÐµÑÐ´Ð°ÑÐ½Ð¾Ð¹ ÑÑÐ¾Ð·Ð¸Ð¸ Ð¾ÑÐ´ÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¿Ð»ÐµÐ¹
title: Modeling the occurrence of impact erosion by a single drop
Creators: name: Ð¡ÐºÐ¾ÑÐ½Ð¸ÐºÐ¾Ð²Ð°, ÐÐ°ÑÐ³Ð°ÑÐ¸ÑÐ°
name: ÐÐ²Ð°Ð½Ð¾Ð²Ð°, ÐÐ°Ð»Ð¸Ð½Ð°
name: Ð¦Ð²ÐµÑÐºÐ¾Ð²Ð°, ÐÐ°Ð»Ð¸Ð½Ð°
name: ÐÑÐ¾Ð¼Ð°, ÐÐ³Ð¾Ñ
name: "Ð¡Ð¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ: Ð½Ð°ÑÐºÐ° Ð¸ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ðµ", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (13; 2024; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¢Ð¸ÑÐ°Ð½Ð¾Ð²ÑÐµ ÑÐ¿Ð»Ð°Ð²Ñ
ÐÐ°ÑÐ¾Ð²ÑÐµ ÑÑÑÐ±Ð¸Ð½Ñ
ÐÐµÑÐ°Ð»Ð»Ñ
ÐºÐ°Ð¿Ð»ÐµÑÐ´Ð°ÑÐ½Ð°Ñ ÑÑÐ¾Ð·Ð¸Ñ
ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ðµ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð² Ð¿Ð¾Ð»ÑÐ¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²Ðµ
ÑÑÐ»Ð¾Ð²Ð¸Ðµ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸
ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð°Ñ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÐºÐ°
drop-impact erosion
contact interaction
stresses in half-space
plastic deformation condition
computer mathematics

description: ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð° Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÐºÐ°Ð¿Ð»ÐµÑÐ´Ð°ÑÐ½Ð¾Ð¹ ÑÑÐ¾Ð·Ð¸Ð¸ (Ð¸Ð·Ð½Ð¾ÑÐ°) ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð»Ð¾Ð¿Ð°ÑÐ¾Ðº Ð¿Ð°ÑÐ¾Ð²ÑÑ ÑÑÑÐ±Ð¸Ð½ Ð¾ÑÐ´ÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¿Ð»ÐµÐ¹. Ð¡ÑÐµÐ´ÑÑÐ²Ð°Ð¼Ð¸ ÑÐµÐ¾ÑÐ¸Ð¸ ÑÐ¿ÑÑÐ³Ð¾ÑÑÐ¸ Ð¸ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼ Mathcad Ð¸ Abacus ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð¾ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° Ð²ÑÐ¾Ð´Ð½Ð¾Ð¹ ÐºÑÐ¾Ð¼ÐºÐ¸, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐµÐµ Ð²ÑÐ»ÐµÐ´ÑÑÐ²Ð¸Ðµ ÑÐ´Ð°ÑÐ¾Ð² ÑÐ°ÑÑÐ¸Ñ Ð¿Ð°ÑÐ° ÑÐ¾ ÑÐºÐ¾ÑÐ¾ÑÑÑÑ 150...600 Ð¼/Ñ. Ð£ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ñ Ð²ÐµÐ»Ð¸ÑÐ¸Ð½Ñ Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð¸ ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸Ñ Ð¾Ñ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸, Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÑÑ Ð½Ð°ÑÐ¸Ð½Ð°Ð»Ð¾ÑÑ Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ. ÐÐ±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð½Ð¾ÑÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐ´Ð¸Ð»Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ Ð°Ð²ÑÐ¾ÑÐ¾Ð², Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½Ð½ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð½Ð° 3-Ñ ÑÑÐ°Ð¿Ð°Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ½Ð¾Ð¹ ÐºÑÐ¸Ð²Ð¾Ð¹ ÐºÐ°Ð¿Ð»ÐµÑÐ´Ð°ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð·Ð½Ð¾ÑÐ° Ð¼ÐµÑÐ°Ð»Ð»Ð° Ð²Ð¾ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¸ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ðµ ÑÑÐ¸Ð¼ ÑÑÐ°Ð¿Ð°Ð¼ ÑÐ¾ÑÐ¼Ñ ÑÑÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸.
description: A mathematical model of the occurrence of drop-impact erosion (wear) of the working blades of steam turbines by a separate drop is proposed. By means of elasticity theory and computer programs Mathcad and Abacus, the stress state of the input edge material resulting from impacts of steam particles at a speed of 150 is calculated...600 m/s. The values of the load and the distance from the surface at which plastic deformation began were determined. The validity of the proposed model was confirmed by the experimental data of the authors, as a result of studies conducted at 3 stages of the characteristic curve of drop-impact wear of metal over time and the shapes of the eroded surface corresponding to these stages.
The Role of Ram Pressure Stripping in the Quenching of Cluster Star Formation
Creators: name: Book, Laura G.
name: Benson, Andrew J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent observations of galaxy clusters have shown that environmental effects apparently associated with the cluster begin to lower the star formation rates of galaxies at distances as great as three times the cluster virial radius. These observations may indicate preprocessing of cluster galaxies in groups or in the cluster core for galaxies on highly elliptical orbits, but may also imply that the environmental effects due to the cluster are directly affecting galaxies on their first infall. To explore these issues, we investigate different models of ram pressure stripping as it acts on satellite galaxies in clusters, and compare to observations of the radial star formation gradient in clusters. We calculate the location of the accretion shock around model clusters, and use this as the radius of onset of ram pressure stripping in the GALFORM semi-analytic model of galaxy formation. Comparison of the results of our model, and previously considered, simpler ram pressure models, with recent observations indicates that current data is unable to strongly discriminate between models of ram pressure stripping due to the complex interplay of preprocessing effects at work. However, future observations of a larger sample of clusters will likely be able to place stronger constraints on the process of ram pressure stripping and its role in shaping radial trends in and around clusters.
description: 10 pages, 4 figures, published in the Astrophysical Journal
MPEC 2024-S170 : 2024 SW4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SW4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Measurement of pi0 and eta Mesons with PHENIX in sqrt(s_NN) = 200 GeV Au+Au Collisions at RHIC
Creators: name: Sahlmueller, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The pi0 meson has been a crucial proble for observing jet quenching in ultrarelativistic heavy-ion collisions at RHIC. Measurements of the eta meson in the same collisions have also shed light on a possible dependence of the observed suppression on the particle species. The preliminary pi0 nuclear modification factor R_AA from the 2004 RHIC run allowed a first systematic comparison between a precise measurement with high statistics and theoretical calculations, constraining model parameters such as the initial gluon density dN^g/dy, and the transport coefficient qhat. The final pi0 spectra and R_AA are shown as well as the first eta results obtained with both PHENIX electromagnetic calorimeters.
description: 4 pages, 4 figures; to appear in the poster proceedings of the 20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions: Quark Matter 2008 (QM2008), Jaipur, India, 4-10 Feb 2008
Diphyus gradatorius
Creators: name: Riedel
name: Pénigot
name: Schwarz
name: Diller
name: Johansson
name: Japoshvili, G.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Diphyus
Diphyus gradatorius

description: Diphyus gradatorius (THUNBERG, 1822)
M a t e r i a l e x a m i n e d: Trap4: 1♀ 29.vi.-13.vii.
D i s t r i b u t i o n: Transpalaearctic, known from Azerbaijan (MEYER 1933a), new record for Georgia.
description: Published as part of Riedel, Pénigot, Schwarz, Diller, Johansson & Japoshvili, G., 2023, Darwin wasps (Hymenoptera, Ichneumonidae) of the Kintrishi National Park, Sakartvelo (Georgia), with descriptions of six new species, pp. 61-153 in Linzer biologische Beiträge 55 (1) on page 101, DOI: 10.5281/zenodo.10415120
Modelling radiation damage to ESA's Gaia satellite CCDs
Creators: name: Seabroke, G. M.
name: Holland, A. D.
name: Cropper, M. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Gaia satellite is a high-precision astrometry, photometry and spectroscopic ESA cornerstone mission, currently scheduled for launch in late 2011. Its primary science drivers are the composition, formation and evolution of the Galaxy. Gaia will achieve its scientific requirements with detailed calibration and correction for radiation damage. Microscopic models of Gaia's CCDs are being developed to simulate the charge trapping effect of radiation damage, which causes charge transfer inefficiency. The key to calculating the probability of a photoelectron being captured by a trap is the 3D electron density within each CCD pixel. However, this has not been physically modelled for Gaia CCD pixels. In this paper, the first of a series, we motivate the need for such specialised 3D device modelling and outline how its future results will fit into Gaia's overall radiation calibration strategy.
description: 12 pages, 6 figures, 2 tables, typos corrected, appearing in Proc. of SPIE Astronomical Telescopes and Instrumentation (23-28 June 2008, Marseille, France)
Global mpox research in the light of the current outbreak: demands, drivers, and obstacles
Creators: name: Klingelhöfer, Doris
name: Braun, Markus
name: Groneberg, David A.
name: Brüggmann, Dörthe
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Following the current outbreak, the mpox virus (formerly: monkeypox virus) is a highly threatening pathogen with public health significance, although mpox is still considered a neglected disease. Previously confined mainly to Africa, the virus spread globally in 2022. However, knowledge about mpox is limited, causing a distorted perception of the disease. Therefore, this study aimed to collect all information on scientific mpox publishing and to analyse them according to their chronological, geographical, and epidemiological patterns. It was not until the global outbreak that the relatively small number of publications was replaced by the immense increase in annual publication numbers. The most important player is the USA with a central role in international networking. They collaborated mainly with the Democratic Republic of Congo, a primary endemic country where the first viral clades were determined. Nigeria and other African countries were also represented, although mainly in the form of co-authorships. The fact that few of the first authors are from low- or middle-economic countries demonstrates the need to promote equitable networking at the global level and their support for surveillance and targeted immunization programmes.
Free electron lifetime achievements in Liquid Argon Imaging TPC
Creators: name: Baibussinov, B.
name: Ceolin, M. Baldo
name: Calligarich, E.
name: Centro, S.
name: Cieslik, K.
name: Farnese, C.
name: Fava, A.
name: Gibin, D.
name: Guglielmi, A.
name: Meng, G.
name: Pietropaolo, F.
name: Rubbia, C.
name: Varanini, F.
name: Ventura, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A key feature for the success of the liquid Argon imaging TPC (LAr-TPC) technology is the industrial purification against electro-negative impurities, especially Oxygen and Nitrogen remnants, which have to be continuously kept at an exceptionally low level by filtering and recirculating liquid Argon. Improved purification techniques have been applied to a 120 liters LAr-TPC test facility in the INFN-LNL laboratory. Through-going muon tracks have been used to determine the free electron lifetime in liquid Argon against electro-negative impurities. The short path length here observed (30 cm) is compensated by the high accuracy in the observation of the specific ionization of cosmic ray muons at sea level as a function of the drift distance. A free electron lifetime of (21.4+7.3-4.3) ms, namely > 15.8 ms at 90 % C.L. has been observed over several weeks under stable conditions, corresponding to a residual Oxygen equivalent of about 15 ppt (part per trillion). At 500 V/cm, the free electron speed is 1.5 m/ms. In a LAr-TPC a free electron lifetime in excess of 15 ms corresponds for instance to an attenuation of less than 15 % after a drift path of 5 m, opening the way to the operation of the LAr-TPC with exceptionally long drift distances.
description: 15 pages, 10 figures; Accepted for publication in JINST
Impact of Leadership Styles and Communicator’s Competency on Organizational Commitment in the Telecommunication Sector of Pakistan
Creators: name: Kharal, Sara
Publisher: name: figshare
Year: 2022
Subjects: subject: 150308 International Business
subject: FOS: Economics and business
subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: 150305 Human Resources Management
subject: Organizational Behavioral Psychology
subject: 130304 Educational Administration, Management and Leadership

description: This study, Impact of Leadership Styles and Communicator’s Competency on Organizational Commitment in the Telecommunication Sector of Pakistan, has been done to assess the current leadership styles, the commitment level of the employees and the gap between the supervisors and the employees due to the lack of communication. The reason behind conducting this study was to check the direct relationship between the dependent (Organizational Commitment) and independent variable (Leadership Styles) through the mediator (Communicator’s Competence). The methodology that we used for research information included Convenience Sampling because of the time and cost constraints. A cross sectional survey was floated to the different telecom franchises located in Lahore, Pakistan. The study population was employees and supervisors. The questionnaires floated were about 400 and the response obtained was 236 out of which 11 were invalid, so the responses used for the data analysis were 225 and were investigated through the SPSS. With the empirical findings of the research it was revealed that the task and relational leadership styles have a significant impact on the organizational commitment and insignificant impact when research was done through the mediating effect of communicator’s competency.