Search results for "DT"

A black-box, general purpose quadratic self-consistent field code with and without Cholesky Decomposition of the two-electron integrals

2021

We present the implementation of a quadratically convergent self-consistent field (QCSCF) algorithm based on an adaptive trust-radius optimisation scheme for restricted open-shell Hartree���Fock (ROHF), restricted Hartree���Fock (RHF), and unrestricted Hartree���Fock (UHF) references. The algorithm can exploit Cholesky decomposition (CD) of the two-electron integrals to allow calculations on larger systems. The most important feature of the QCSCF code lies in its black-box nature ��� probably the most important quality desired by a generic user. As shown for pilot applications, it does not require one to tune the self-consistent field (SCF) parameters (damping, Pulay's DIIS, and other simil…

Detecting cellular network anomalies using the knowledge discovery process

2015

Analytical companies unanimously forecast the exponential growth of mobile traffic consumption over the next five years. The densification of a network structure with small cells is regarded as a key solution to meet growing capacity demands. The manual management of a multi-layer network is a very expensive, error prone, and sluggish process. Hence, the automation of the whole life cycle of network operation is highly anticipated. To this aim 3GPP introduces a self-management concept referred to as SON. It is envisioned that SON updates information concerning the latest network conditions through the MDT mecha- nism. MDT enables a network operator to collect radio and service quality measurem…

Oltre il senso comune. Il concetto di pluralità in Hannah Arendt, tra estetica e politica

Investigating the Structure of Vela X

2018

Vela X is the prototypical example of a pulsar wind nebula whose morphology and detailed structure have been affected by the interaction with the reverse shock of its host supernova remnant. The resulting complex of filamentary structure and mixed-in ejecta embedded in a nebula that is offset from the pulsar provides the best example we have of this middle-age state that characterizes a significant fraction of composite SNRs, and perhaps all of the large-diameter PWNe seen as TeV sources. Here we report on an XMM-Newton Large Project study of Vela X, supplemented by additional Chandra observations. Through broad spectral modeling as well as detailed spectral investigations of discrete emiss…

Unethical but not illegal: Uncovering the persuasive messages leveraged by providers of the “real” online social impressions

2018

Due to the drastically elevated prominence of social networking sites (SNS), online social impressions such as views, comments, followers, subscribers, likes, and dislikes have become a valuable currency that translates to popularity, credibility, and even financial gains. Aside from machine-generated impressions, a growing industry known as crowdturfing utilizes human workers to provide “real” social impressions as-a-service. Although crowdturfing platforms are often seen as a clear example of deceptive conduct, they justify their business by leveraging well-crafted persuasive strategies and ethical appeals. Given the increasingly significant role of online impressions on shaping people’s …

Open Dialogues in social networks: professional identity and transdisciplinary collaboration

2010

Aim: The aim of this article is to explore the challenges connected to the transformation and emergence of professional identity in transdisciplinary multi-agency network meetings and the use of Open Dialogue.Introduction: The empirical findings have been taken from a clinical project in southern Norway concerning multi-agency network meetings with persons between 14 and 25 years of age. The project explores how these meetings are perceived by professionals working in various sectors.Methodology: Data was collected through three interviews conducted with two focus groups, the first comprising health care professionals and the second professionals from the social and educational sectors. Con…

A Channel-Aware Adaptive Modem for Underwater Acoustic Communications

2021

Acoustic underwater channels are very challenging, because of limited bandwidth, long propagation delays, extended multipath, severe attenuation, rapid time variation and large Doppler shifts. A plethora of underwater communication techniques have been developed for dealing with such a complexity, mostly tailoring specific applications scenarios which can not be considered as one-size-fits-all solutions. Indeed, the design of environment-specific solutions is especially critical for modulations with high spectral efficiency, which are very sensitive to channel characteristics. In this paper, we design and implement a software-defined modem able to dynamically estimate the acoustic channel c…

Viedpulksteņu un viedtālruņu lietojamība fizisko aktivitāšu laikā

2022

Mūsdienās teholoģijas ļoti strauji mainās. Sports cilvēku dzīvēs ieņem ar vien nozīmāgāku lomu, līdz ar to viedierīces ļoti attīstās un kļūst pieprasītākas. Viena no tām ir fizisko aktivitāšu uzskaite, bez kurām nav iedomājama aktīvu cilvēku ikdiena. Bakalaura darba „Viedpulksteņu un viedtālruņu lietojamība fizisko aktivitāšu laikā” mērķis ir izpētīt un noskaidrot viedierīču izmantošanas iespējas sportā, veselības un snieguma uzlabošanai. Cik lielu lomu šīs ierīces ieņem aktīvu cilvēku dzīvēs un kam dod izvēles priekšrocības. Lai noskaidrotu izvirzītos mērķus un hipotēzi, pētījumā tiek izmantota anketēšanas metode, ar kuras palīdzību tiek noskaidrota viedierīču izmantošana fizisko aktivitāš…

Examining bedtime procrastination, study engagement, and studyholism in undergraduate students, and their association with insomnia

2023

IntroductionCompulsive overstudying, known as studyholism, is an emerging behavioral addiction. In this study, we examine the prevalence of, and the relationships between, insomnia, study engagement, studyholism, bedtime procrastination among undergraduate students.MethodsThe Studyholism (SI-10), Athens Insomnia (AIS), and bedtime procrastination scales were administered to a convenience sample of 495 university students.ResultsOur findings indicate that the prevalence of insomnia was 75.31%, high studyholism was found in 15.31% of the sample, and increased study engagement was detected in 16.94%. Gender differences analysis revealed that females reported higher studyholism and bedtime proc…

High Resolution Coherent Anti-Stokes Raman Spectroscopy (CARS) Of O 2 And CO 2

1988

With the help of high spectral quality (linewidth , 6 MHz) injection-locked flashlamp-pumped dye lasers, high resolution Coherent Anti-Stokes Raman Spectroscopy (CARS) has been applied to the study of the Q-branches of 0 2 and CO 2 . The Q-branch linewidths of 02 were obtained from the first nine transitions (J 2 = 1 to 17) recorded at pressures from 0.094 to 1 atm at room temperature. A least squares program was employed to fit calculated spectra to experimental spectra by adjusting different parameters. The collisional broadening coefficients we have obtained are consistent with available Raman data. We have also studied the Q-branch of the fundamental v1 band of CO 2 in the Fermi resonan…