cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Forgotten but not gone: Blount disease
Creators: name: Tereso, Andreia Filipa Batista
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Paediatric radiology
subject: Paediatric
subject: Conventional radiography
subject: MR
subject: Clinical Cases

description: Clinical History: An eleven-year-old immigrant girl presented for the first time in our institution with longstanding left knee pain and left genu varum deformity.

description: 11 years, female
Roeseliana pylnovi
Creators: name: Massa, Bruno
name: Tagliavia, Marcello
name: Buzzetti, Filippo Maria
name: Fontana, Paolo
name: Carotti, Giovanni
name: Bardiani, Marco
name: Leandri, Fausto
name: Scherini, Roberto
name: Verde, Gabriella Lo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Roeseliana
Roeseliana pylnovi

description: Roeseliana pylnovi (Uvarov, 1924)
Figs. 1e, 1f, 3h, 6d, 8a, 10
Uvarov 1924. Trans. R. Entomol. Soc. London, 71(3–4): 534 (Metrioptera pylnovi); type locality and depository: Caucasus (UMO, Oxford).
Material examined. Armenia, Tavush, Dilijan 6.VII.2005, M. Kalashian (5♁, 6♀) (BMPC); Georgia, Caucasus, Bakuriany 5–10.IX.1912, E. Konig (1♁, 1♀ paratypes) (NHM) (photographed by R. Felix); Georgia, Lake Bazeleti 29.VI.2003, P. Fontana, F. Buzzetti & B. Massa (1♁); Georgia, Ananouri 20.VI.2003, P. Fontana, F. Buzzetti & B. Massa (1♁) (BMPC).
Remarks. Described in the genus Metrioptera by Uvarov (1924), it was transferred to the genus Roeseliana by Zeuner (1941). Following Tarbinsky (1932) it is synonymous with R. fedtschenkoi, but Zeuner (1941) listed it as valid species. Ramme (1951) considered R. pylnovi and R. fedtschenkoi different taxa, with different shape of wings. Ĝtz (1969) pointed out that the subgenital plate of female is more incised than that of R. fedtschenkoi, but he did not list specimens of the latter species.
It seems that R. pylnovi is much related to R. fedtschenkoi and R. roeselii. However, titillators are different from those of R. roeselii (Fig. 6). Instead, the supra-anal plate and cerci of the male are a slightly similar to those of R. roeselii (Fig. 6d), however, differences may be detected with the female subgenital plate, which in R. roeselii is laterally more rounded (Figs. 8a and 8b). See also Tables 2 and 4.
Distribution. Caucasian region.
description: Published as part of Massa, Bruno, Tagliavia, Marcello, Buzzetti, Filippo Maria, Fontana, Paolo, Carotti, Giovanni, Bardiani, Marco, Leandri, Fausto, Scherini, Roberto & Verde, Gabriella Lo, 2023, A taxonomic revision of the Palaearctic genus Roeseliana (Orthoptera: Tettigoniidae: Tettigoniinae: Platycleidini): a case of ongoing Mediterranean speciation, pp. 351-400 in Zootaxa 5270 (3) on page 363, DOI: 10.11646/zootaxa.5270.3.1, http://zenodo.org/record/7859886
The morphology and dynamics of polymerization-induced phase separation
Creators: name: Luo, Kaifu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The morphology and dynamics of polymerization-induced phase separation in the initially homogeneous solution of a non-reactive component in reactive monomers are investigated by incorporating the reaction kinetics into the time-dependent Ginzburg Landau equation. Analytical results show that there is a reduction of the initial length scale in the early stage of phase separation. The reason is the increase of the molecule weight of emerging polymer, independent of the fact whether the system goes through the metastable region or not. The numerical results are in good agreement with theoretical prediction quite well.
description: 20 pages, 6 figures. European Polymer Journal, 2006 (in press)
title: Persistence of the omphalomesenteric duct in a newborn
Creators: name: Oprisan, Anca Alexandra Ioana
name: Belloch Ripollés, Vicente
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Paediatric radiology
subject: Abdomen
subject: Foetal imaging
subject: Paediatric
subject: Fluoroscopy
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 21-day-old newborn with undetached umbilical cord was brought to the emergency department. His umbilical cord was thick and moist, with hyperemic and oedematous skin surrounding its base, and granulomatous tissue in the distal segment, without discharge of meconium or urine (Fig. 1). Prior, he had treatment with local cures in ambulatory care.

description: 21 days, male
Numerical twist-even SU(1,1)-singlet solutions in open string field theory around the identity-based solution
Creators: name: Kishimoto, Isao
name: Takahashi, Tomohiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the level truncation method, we construct numerical solutions, which are twist even and SU(1,1) singlet, in the theory around the Takahashi-Tanimoto identity-based solution (TT solution) with a real parameter $a$ in the framework of bosonic open string field theory. We find solutions corresponding to "double brane" and "ghost brane" solutions which were constructed by Kudrna and Schnabl in the conventional theory around the perturbative vacuum. Our solutions show somewhat similar $a$-dependence to tachyon vacuum and single brane solutions, which we found in the earlier works. In this sense, we might be able to expect that they are consistent with the conventional interpretation of $a$-dependence of the TT solution. We observe that numerical complex solutions at low levels become real ones at higher levels for some region of the parameter $a$. However, these real solutions do not so improve interpretation for double brane.
description: 24 figures
The Investigation of a Signaling Pathway Regulating Migration led to the Characterization of Novel Migration Modulators
Creators: name: Kelsey, Jessica Sazama
Publisher: name: Maryland Shared Open Access Repository
Year: 2011

description: The ampA gene is critical for Dictyostelium discoideum cell migration.  To help understand the elusive ampA migrational pathway, second site suppressors were created by REMI mutagenesis.  Three novel genes were identified as suppressors of the AmpA overexpressing increased migration phenotype.  In order to understand and characterize the novel suppressor gene functions, mRFP fusion proteins were created and knockout cell lines were established.  Isolation and characterization results of the three suppressors are described.   REMI mutagenesis was used to identify second site suppressors of a primary mutation in AmpA overexpression.   REMI involves the random insertion of a blasticidin resistance cassette into the genome and disruption of residing genes.  Disruption of a gene participating in the ampA pathway will produce an alteration in phenotype.  I screened for mutants which suppressed the large plaque phenotype in ampAOE cells; the plaque sizes are a reflection of their increased migration.  Three suppressors were isolated: lmbd2B, ndm and sma.   Lmbd2b belongs to the evolutionarily conserved LMBR1 protein family, some of whose known members are transmembrane endocytic receptors.  Our findings suggest LMBD2B likely functions as a plasma membrane endocytic receptor.  Defects in migration were observed in Lmbd2B- cells, they appear to extend excessive pseudopods and have difficulty establishing a front/back orientation to facilitate migration. The second suppressor is ndm, an F-BAR domain containing protein.  It inhibits macropinocytosis, and the increase in endocytosis exhibited by null cells interferes with migration.  An interaction between NDM and coronin was found, suggesting it has a role in regulating coronin mediated processes such as macropinocytosis and lamellipodia formation.   The third suppressor, sma, contains a DNA binding SAP domain.  It was found to influence many cellular processes similarly to ampA.  It was also determined to influence ampA transcript levels.  Sma null cells display increased efficiency in chemotaxis, suggesting a critical role for SMA in regulating cell movement.  An interesting interaction was found between ampA and sma pathways during chemotaxis, where the presence of AmpA had profound effects on cell movement.   The characterization of the suppressor genes led to the identification of novel genes involved in chemotaxis signaling pathways.
Modelling non-perturbative corrections to bottom-quark fragmentation
Creators: name: Aglietti, Ugo
name: Corcella, Gennaro
name: Ferrera, Giancarlo
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe B-hadron production in e+e- annihilation at the Z pole by means of a model including non-perturbative corrections to b-quark fragmentation as originating, via multiple soft emissions, from an effective QCD coupling constant, which does not exhibit the Landau pole any longer and includes absorbitive effects due to parton branching. We work in the framework of perturbative fragmentation functions at NLO, with NLL DGLAP evolution and NNLL large-x resummation in both coefficient function and initial condition of the perturbative fragmentation function. We include hadronization corrections via the effective coupling constant in the NNLO approximation and do not add any further non-perturbative fragmentation function. As part of our model, we perform the Mellin transforms of our resummed expressions exactly. We present results on the energy distribution of b-flavoured hadrons, which we compare with LEP and SLD data, in both x- and N-spaces. We find that, within the theoretical uncertainties on our calculation, our model is able to reasonably reproduce the data at x<0.92 and the first five moments of the B cross section.
description: 44 pages, 4 figures. Few changes after referee report. Sections 4 and 7 expanded, references added, numerical results unchanged
Letter from A.B.C [A.B. Campbell] to [James] Goldie, February 15, 1910
Creators: name: Campbell, A.B.
Publisher: name: The University of British Columbia
Year: 2017

description: Letter to James Goldie from A.B. Campbell, dated February 15, 1910, regarding a missing agreement; log cutting; and issues concerning the sale of Leir's mill [sawmill?].
title: Hypoplasia of the internal carotid artery
Creators: name: Vanhoenacker, Filip M. H. M.
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: CNS
subject: Head and neck
subject: CT
subject: CT-Angiography
subject: MR
subject: Arteriovenous malformations
subject: Clinical Cases

description: Clinical History: A 50-year-old woman consulted the neurologist for sudden right-sided visual loss. Symptoms only lasted for several minutes. The patient was free of symptoms at the time of consultation. Further physical and neurological examinations were normal. Past medical history included breast carcinoma.

description: 50 years, female
title: Hyperechoic mobile structure in the bladder
Creators: name: Ny Ako, Ratsimbasoa
Publisher: name: EURORAD
Year: 2024
Subjects: subject: Uroradiology & genital male imaging
subject: Urinary Tract / Bladder
subject: Ultrasound
subject: Clinical Case

description: Clinical History: A 60-year-old man living in a rural area presented with gross haematuria and a gradually increasing painful urination for one month.

description: 60 years, male
Optimising longitudinal and lateral calorimeter granularity for software compensation in hadronic showers using deep neural networks
Creators: name: Neubüser, Coralie
name: Kieseler, Jan
name: Lujan, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We investigate the effect of longitudinal and transverse calorimeter segmentation on event-by-event software compensation for hadronic showers. To factorize out sampling and electronics effects, events are simulated in which a single charged pion is shot at a homogenous lead glass calorimeter, split into longitudinal and transverse segments of varying size. As an approximation of an optimal reconstruction, a neural network-based energy regression is trained. The architecture is based on blocks of convolutional kernels customized for shower energy regression using local energy densities; biases at the edges of the training dataset are mitigated using a histogram technique. With this approximation, we find that a longitudinal and transverse segment size less than or equal to 0.5 and 1.3 nuclear interaction lengths, respectively, is necessary to achieve an optimal energy measurement. In addition, an intrinsic energy resolution of $8\%/\sqrt{E}$ for pion showers is observed.
THE BENEFITS OF PARTICIPATING IN COLLEGE ORGANIZATIONS AMONG MEMBERS OF A SOUTH ASIAN WOMEN'S FACEBOOK GROUP
Creators: name: Gupta, Stephanie
Publisher: name: Zenodo
Year: 2021
Subjects: indirect reciprocity
college organizations

description: For most of human history indirect reciprocity led to seemingly altruistic behavior, because humans lived in small groups where they depended on one another for survival throughout their lives and interacted with the same people throughout their life frequently. We explore the existence of seemingly altruistic behavior through different explanations. These explanations consist of inclusive fitness, reciprocal altruism, costly signaling theory and the show-off hypothesis, the tolerated theft hypothesis, and indirect reciprocity. We then conducted a survey among members of a south Asian women’s Facebook group who have attended college, to see whether participating in college organizations led to beneficial outcomes for those who were involved. We found a significant correlation between individuals who participated in college organizations and social status, compared to individuals who did not participate in college organizations. We also found a significant correlation between the amount of time that individuals spent in college organizations and the amount of social status that they had.
SUPPLY CHAIN MODELS AND CHANNEL STRATEGIES FOR DISTRIBUTING TANGIBLE AND INTANGIBLE PRODUCTS WITH THE INTERNET-ENABLED MARKET
Creators: name: Feng, Yunfang
Publisher: name: Maryland Shared Open Access Repository
Year: 2008
Subjects: Information Science (0723)
E-business
channel strategy
digital goods
econometric model

description: The Internet has opened new channels for market competition, meanwhile posing new challenges to many traditional supply chain management insights. Many new business initiatives have emerged to take full advantage of the Internet channel to complement or substitute the traditional channel for business. For example, drop-shipping is an arrangement whereby an e-tailer accepts orders for products, and then pays a manufacturer or distributor to ship the product to the customer. One distinguishing feature of the drop-shipping channel is that the e-tailer does not hold any inventory. Compared to the traditional channel, the customers' online shopping penetration has effects on the performance of the drop-shipping channel. Our study focuses on the strategic differences between the two channels and identifies conditions under which the drop-shipping channel outperforms the traditional channel. As a comparison, we also study the centralized channel performance of each channel. Our analysis provides some insights as to when the Internet channel could be an effective substitute or complement to the traditional channel of supply chain management. A unique phenomenon of the information economy is the use of Internet-enabled markets to distribute information goods such as music and videos. Although the online store model is the predominant channel for distributing digital contents, emerging offline transactions through personal computing devices such as portable media players in users' wireless vicinity present new opportunities. We develop a model to study the strategic interaction between the two distribution channels for digital products. We first consider price as a sole differentiating variable in the channel structure. We next introduce service as a second differentiating factor. Particularly, we address the strategic tradeoff in the dual channel pricing and service provision. We further identify conditions when the dual channel outperforms the single channel and when the service-enhanced channel structure dominates the price-only channel structure in terms of the overall channel profits. Finally, we extend our model to deal with demand uncertainty. We consider two scenarios with different commitment regimes regarding channel structural choices and prices. Our analysis also provides practical implications about when information acquisition generates the most significant benefit in channel operations.
Oil from mullet roe byproducts: effect of oil extraction method on human erythrocytes and platelets
Creators: name: Tsamesidis, Ioannis
name: Tzika, Paraskevi
name: Georgiou, Despoina
name: Charisis, Aggelos
name: Hans, Sakshi
name: Lordan, Ronan
name: ZABETAKIS, IOANNIS
name: Kalogianni, Eleni P.
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences

description: The valorization of byproducts to obtain high nutritional value foods is of utmost importance for our planet where the population is booming. Among these products are oils rich in ω-3 fatty acids produced from fishery byproducts. Recently, mullet roe oil from roe byproducts was produced that was rich in the ω-3 fatty acids eicosatetraenoic acid (EPA) and docosahexaenoic acid (DHA). Oils are customarily characterized for their composition and degree of oxidation but little is known of their biological effects, especially the effect of the extraction method. Methods: The purpose of this study was to evaluate the effects of freshly extracted mullet roe oil from mullet roe byproducts and the effect of the extraction method on human red blood cells (hRBCs) and platelets. To this end, the hemocompatibility (cytotoxicity), oxidative effects, and erythrocyte membrane changes were examined after 1 and 24 h of incubation. Antiplatelet effects were also assessed in vitro. Results: The expeller press oil extraction method and alcalase-assisted extraction produced the most biocompatible oils, as shown by hemocompatibility measurements and the absence of erythrocyte membrane alterations. Solvent extracts and protease-assisted extraction oils resulted in the rupture of red blood cells at different examined dilutions, creating hemolysis. Conclusions: It seems that the proper functioning of oil–erythrocyte interactions cannot be explained solely by ROS. Further investigations combining chemical analysis with oil–cell interactions could be used as an input to design high nutritional value oils using green extraction technologies. All samples exhibited promising antiplatelet and antiblood clotting effects in vitro.
title: Multimodal imaging of asymmetric haemorrhagic cerebral venous thrombosis: An interesting and challenging radiological case
Creators: name: Sotomayor, Katherine
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: Interventional vascular
subject: Neuroradiology brain
subject: Vascular
subject: Catheter arteriography
subject: CT
subject: CT-Angiography
subject: Diagnostic procedure
subject: Outcomes analysis
subject: Thrombolysis
subject: Acute
subject: Haemorrhage
subject: Obstruction / Occlusion
subject: Clinical Cases

description: Clinical History: A 60-year-old female patient with code stroke and headache.  No previous history. On neurological exam, she was alert, with left-sided facial droop and slurred speech. National Institutes of Health Stroke Scale (NIHSS) score was 7 points.  TPA was not given. Glasgow Coma Scale/Score (GCS) was ~10-11.

description: 60 years, female
title: A rare case of basilar artery fenestration with anterior and posterior saccular aneurysms resulting in acute subarachnoid haemorrhage
Creators: name: Garner, Chadwick
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: Arteries / Aorta
subject: CNS
subject: Catheter arteriography
subject: CT-Angiography
subject: Embolisation
subject: Clinical Cases

description: Clinical History: A 39-year-old female patient presented to the emergency department with a headache for two days. Non-contrast CT of the head demonstrated acute subarachnoid haemorrhage in the basal and prepontine cisterns with subtle intraventricular haemorrhage in the third and fourth ventricles. CTA was subsequently performed and demonstrated focal fenestration of the basilar artery with anterior and posterior projecting aneurysms.

description: 39 years, female
title: Pseudoaneurysm of the posterior tibial artery associated with an Achilles tendon injury: An unexpected finding
Creators: name: Hoque, Tagrid
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: CT-Angiography
subject: MR
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 52-year-old gentleman, with hypertension and atrial fibrillation (anti-coagulated with apixaban), presented with left-calf pain following a fall into a badger hole. Clinical examination showed gross swelling of the left calf, loss of ankle plantar flexion, and positive Simmonds# test. An ultrasound of the left calf was arranged. 

description: 52 years, male
Outgassing of Ordinary Chondritic Material and Some of its Implications for the Chemistry of Asteroids, Planets, and Satellites
Creators: name: Schaefer, Laura
name: Fegley,, Bruce
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We used chemical equilibrium calculations to model thermal outgassing of ordinary chondritic material as a function of temperature, pressure, and bulk compositions and use our results to discuss outgassing on asteroids and the early Earth. The calculations include ~1,000 solids and gases of the elements Al, C, Ca, Cl, Co, Cr, F, Fe, H, K, Mg, Mn, N, Na, Ni, O, P, S, Si, and Ti. The major outgassed volatiles from ordinary chondritic material are CH4, H2, H2O, N2, and NH3(the latter at conditions where hydrous minerals form). Contrary to widely held assumptions, CO is never the major C-bearing gas during ordinary chondrite metamorphism. The calculated oxygen fugacity (partial pressure) of ordinary chondritic material is close to that of the quartz-fayalite-iron (QFI) buffer. Our results are insensitive to variable total pressure, variable volatile element abundances, and kinetic inhibition of C and N dissolution in Fe metal. Our results predict that Earth's early atmosphere contained CH4, H2, H2O, N2, and NH3; similar to that used in Miller-Urey synthesis of organic compounds.
description: 72 pages, 17 figures, 3 tables; submitted to Icarus
Composable Programming of Hybrid Workflows for Quantum Simulation
Creators: name: Nguyen, Thien
name: Bassman, Lindsay
name: Lyakh, Dmitry
name: McCaskey, Alexander
name: Leyton-Ortega, Vicente
name: Pooser, Raphael
name: Elwasif, Wael
name: Humble, Travis S.
name: de Jong, Wibe A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a composable design scheme for the development of hybrid quantum/classical algorithms and workflows for applications of quantum simulation. Our object-oriented approach is based on constructing an expressive set of common data structures and methods that enable programming of a broad variety of complex hybrid quantum simulation applications. The abstract core of our scheme is distilled from the analysis of the current quantum simulation algorithms. Subsequently, it allows a synthesis of new hybrid algorithms and workflows via the extension, specialization, and dynamic customization of the abstract core classes defined by our design. We implement our design scheme using the hardware-agnostic programming language QCOR into the QuaSiMo library. To validate our implementation, we test and show its utility on commercial quantum processors from IBM, running some prototypical quantum simulations.
title: Spontaneous cavernosal abscess: a condition rarely described in the literature
Creators: name: Pereira, Pedro
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: CT
subject: Ultrasound
subject: Diagnostic procedure
subject: Surgery
subject: Abscess
subject: Clinical Cases

description: Clinical History: A 49-year-old man with a long-standing history of Human Immunodeficiency Virus (HIV) and poorly controlled gout presented to the emergency department with a 15-day history of fever associated with dysuria, and frequency, redness and painful swelling of the right testicle and of the distal penile shaft, near the base.

description: 49 years, male
title: La respiration lèvres pincées chez le BPCO
title: effets sur la capacité inspiratoire et la dyspnée au repos et à l'effort
titleType: Subtitle
title: La respiration lèvres pincées chez le BPCO
titleType: AlternativeTitle
Creators: name: Lazarovski, Dejan
name: Salomé, Luginbühl
Publisher: name: Unknown
Year: 0
Subjects: subject: BPCO
subject: respiration lèvres pincées
subject: hyperinflation
subject: capacité inspiratoire
subject: dyspnée
subject: hesav TB Phy

description: Introduction Actuellement 4ème cause de décès dans le monde, la bronchopneumopathie chronique obstructive (BPCO) représente un challenge de santé publique. Elle est caractérisée par différentes modifications anatomo-pathologiques pouvant entraîner de l’hyperinflation pulmonaire et une sensation de dyspnée. Ces deux facteurs jouent un rôle important dans la réduction de l’autonomie du sujet au cours du temps. La respiration lèvres pincées (RLP), souvent utilisée instinctivement par les patients atteints de BPCO, est une technique respiratoire améliorant potentiellement la dyspnée et la capacité inspiratoire (CI). Le but de cette revue est d’évaluer les effets de la RLP, au repos et à l’effort, sur la CI et la dyspnée chez les BPCO. Méthodologie Une sélection d’articles sur quatre bases de données (Pubmed, CINHAL, PEDro, Embase) a été effectuée entre novembre et décembre 2018 à partir de mots-clés et de critères de sélection. Résultats Parmi les 4 articles sélectionnés, aucun consensus sur les effets de la RLP n’a été observé. Toutefois, certaines de nos études ont obtenu des résultats significatifs, au repos comme à l’effort, montrant une tendance en faveur de la RLP. Conclusion Au vu du faible niveau de preuve (3.e sur 5 selon le Joanna Briggs Institute) et des résultats divergents de nos articles, il est difficile d’émettre une généralisation sur ce sujet. Cependant, aucun effet délétère de la RLP sur la santé du patient n’a été observé dans nos articles. Nous encourageons donc d’établir un protocole de type RCT pour les futures recherches, ceci dans le but d’obtenir des résultats plus probants.
description: Introduction
FRAMEWORK FOR PRICE PREDICTION IN THE NIGERIAN STOCK MARKET USING DATA MINING TECHNIQUES
Creators: name: Hafsat, Amina Jibril
name: Abdullahi, Salisu Kadir
Publisher: name: noland journals
Year: 2024
Subjects: : Stock market prediction, Data mining framework, Decision Tree, Support Vector Regression, Artificial Neural Network

description: The stock market has become an integral part of the modern financial system, playing a significant role in shaping the global economy. The stock market prices serve as a key indicator of market sentiment, economic performance and investor confidence, with a growing demand for accurate stock market predictions. This research explores a data mining framework for Nigerian stock market predictions using Decision Tree, Support Vector Regression, and Artificial Neural Network techniques. Data from Dangote Sugar Refinery is used to create new variables for models. The models are evaluated using MAPE and MSE, and show promising outcomes. The combined models have the highest accuracy at 85%, capturing both short-term and long-term trends effectively. The study recommends further development of advanced sentiment analysis and dynamic model adaptation for better implementation
title: A rare case of needle tract seeding from colonic adenocarcinoma
Creators: name: Murray, Lorraine
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Abdominal imaging
subject: Abdomen
subject: Gastrointestinal tract
subject: Soft tissues / Skin
subject: CT
subject: PET-CT
subject: Biopsy
subject: Metastases
subject: Clinical Cases

description: Clinical History: A 58-year-old male underwent surgery with curative intent for a pT4aN0M0 colonic adenocarcinoma. A one-year surveillance CT abdomen & pelvis demonstrated an interval onset para-aortic nodal mass with FDG avidity on PET-CT. The node was biopsied and five months later he developed enlarging, painful subcutaneous lesions at the biopsy site.

description: 59 years, male
title: A rare case of renal sinus tumour
Creators: name: Regmi, Pradeep
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Uroradiology & genital male imaging
subject: Kidney
subject: Retroperitoneum
subject: Urinary Tract / Bladder
subject: CT
subject: Clinical Cases

description: Clinical History: A 72-year-old male patient complains of intermittent pain in right lumbar region since 6 months. The pain was dull. No history haematuria or general symptoms. CT urography was performed.

description: 72 years, male
title: Vaginal leiomyoma - A common tumour at an uncommon location
Creators: name: Goel, Archita
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Genital (female) imaging
subject: Genital / Reproductive system female
subject: Pelvis
subject: MR
subject: Ultrasound
subject: Education and training
subject: Clinical Cases

description: Clinical History: A 42-year-old lady (P1 L1) presented with 3-year history of menorrhagia and dysmenorrhoea and 4-year history of mass per vagina. On pelvic examination, the uterus was enlarged (corresponding to 10-12 weeks pregnant uterus) and deviated towards left. The cervix was normal. A smooth, firm and non- tender mass was seen in the vagina.  A provisional diagnosis of vaginal cyst was made.

description: 42 years, female
Raman Spectroscopy Study of alpha-, beta-, gamma-NaxCoO2 and gamma-(Ca,Sr)xCoO2
Creators: name: Yang, H. X.
name: Xia, Y.
name: Shi, Y. G.
name: Tian, H. F.
name: Xiao, R. J.
name: Liu, X.
name: Liu, Y. L.
name: Li, J. Q.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Raman spectroscopy measurements have been performed on alpha-, beta-, gamma-NaxCoO2 phases differing in their stacking of CoO6 octahedra along the c-axis direction. The results demonstrate that, in general, there are five active phonons for gamma-Na0.75CoO2, two Raman active phonons for alpha-NaCoO2, and four Raman active phonons for beta-NaCoO2. We have also performed Raman scattering measurements on several gamma-(Ca,Sr)xCoO2 (0.15 <= x <= 0.35) samples which show well-defined intercalated Ca/Sr-ordering. The experimental data show that the intercalated cation ordering could result in visible alterations on Raman spectral structures. The observations of the spectral changes along with the variation of the CoO6 stacking, as well as the intercalated Sr/Ca ordering suggest that the interlayer interaction plays an important role for understanding the lattice dynamics in this layered system.
description: 23 pages, 5 figures, Physical Review B, in press
Multiplicity dependence of $χ_{c}$ and $χ_{b}$ meson production
Creators: name: Siddikov, Marat
name: Schmidt, Iván
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we analyze in detail the production of the $χ_{c}$ and $χ_{b}$ mesons in $pp$ collisions. Using the color dipole framework, we estimated the cross-sections in the kinematics of ongoing and forthcoming experiments, and found that our estimates are in reasonable agreement with currently available experimental data. We also analyzed the dependence on multiplicity of co-produced hadrons and found that it is significantly milder than that of $S$-wave quarkonia. We expect that the experimental confirmation of this result could constitute an important test of our understanding of multiplicity enhancement mechanisms in the production of different quarkonia states.
description: 14 pages, 9 figures. This paper is a sequel to our earlier publications arXiv:1910.13579, arXiv:2003.13768 and arXiv:2008.12446 dedicated to multiplicity dependence of quarkonia and open heavy flavour meson production
title: Pyogenic spondylodiscitis: Dual-energy computed tomography reveals disc destruction in an 80-year-old patient
Creators: name: Pohlan, Julian
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal bone
subject: Musculoskeletal soft tissue
subject: Musculoskeletal spine
subject: CT
subject: Biopsy
subject: Diagnostic procedure
subject: Localisation
subject: Infection
subject: Outcomes
subject: Clinical Cases

description: Clinical History: An 80-year-old man was admitted with systemic signs of infection, two weeks after decompression of L4-S1 for symptomatic spinal canal stenosis. He was discharged asymptomatically one week post-surgery. 

Upon admission, he reported mild back pain, and the surgical wound was healing well. Antibiotic therapy was initiated, without clinical improvement.

description: 80 years, male
TOWARDS A FRAMEWORK FOR COLLABORATIVE INFORMATION EXCHANGE: EXPLORING EFFECTS OF TIME PRESSURE AND TASK DIFFICULTY ON GROUP COGNITION BEHAVIORS AND IMPLICATIONS FOR COMPUTER SUPPORTED COLLABORATION IN HEALTHCARE
Creators: name: Ho, Danny
Publisher: name: Maryland Shared Open Access Repository
Year: 2011
Subjects: collaboration
coordination
CSCW
group cognition
groupware
information exchange

description: In this information age, computerization in the healthcare workplace aims to improve quality of care, reduce administrative and clinical costs, and enhance healthcare work processes. However, integration in this environment proves challenging. Computerizing healthcare processes is not merely a technological pursuit but relies on human-driven coordination of highly fluid, uncertain, and exception-filled activities and processes spanning social, technological, and political boundaries. This dissertation aims to increase our understanding of the information arena framework in the context of shared and personal information spaces in team collaboration through a mixed qualitative-quantitative approach. A stage support model for classifying, measuring, and analyzing information exchange contexts in shared frontstage and personal backstage workspaces emerges. An experimental method that integrates qualitative classification of group information exchanges with quantitative task-timing of a collaborative folding task is proposed, and the effects of task difficulty and time pressure on information exchange behaviors are explored. Findings reveal measurable effects on information seeking behaviors in the shared and personal workspaces. The data suggest that amount and frequency of frontstage activity are sensitive to time pressure and task difficulty under certain situations. Time pressure and task difficulty are also shown to influence group information exchange behaviors. Time pressure increases goals planning, synchronized folding, and instruction confirmation activity, while high task difficulty decreases individual activity and increases group confusion and uncertainty but also encourages more instruction and demonstration. Significant within-information exchange mode effects are also uncovered. While stage support measurements yield interesting quantitative insights and reaffirm some findings of past studies, task specific findings are not readily generalized to all collaboration information exchange settings and demands continued research. This dissertation demonstrates the viability of a robust, novel methodology for data collection and analysis to quantify group processes in collaboration tasks and successfully employs pre-specification of task quality to minimize confounding process performance effects such as variable outcome quality. It also highlights the enormous potential for information, workspace, and collaboration research and design approaches to improve provider-provider and patient-provider interactions in healthcare settings and other collaborative, information rich settings where rapid and fluid information exchange is held under high safety and performance demands.
Complete polarization of electronic spins in OLEDs
Creators: name: Scharff, Tobias
name: Ratzke, Wolfram
name: Zipfel, Jonas
name: Klemm, Philippe
name: Bange, Sebastian
name: Lupton, John M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: At low temperatures and high magnetic fields, electron and hole spins in an organic light-emitting diode (OLED) become polarized so that recombination preferentially forms molecular triplet excited-state species. For low device currents, magnetoelectroluminescence (MEL) perfectly follows Boltzmann activation, implying a virtually complete polarization outcome. As the current increases, the MEL effect is reduced because spin polarization is suppressed by the reduction in carrier residence time within the device. Under these conditions, an additional field-dependent process affecting the spin-dependent recombination emerges, which appears to relate to the build-up of triplet excitons and the interaction with free charge carriers. Suppression of the EL at high fields on its own does not, strictly, prove electronic spin polarization. We therefore probe changes in the spin statistics of recombination directly in a dual singlettriplet emitting OLED, which shows a concomitant rise in phosphorescence intensity as fluorescence is suppressed. Finite spin-orbit coupling in these materials gives rise to a microscopic distribution in effective g factors of electrons and holes, $Δg$, i.e. a distribution in Larmor frequencies, leading to singlet-triplet mixing within the electronhole pair as a function of applied field. This $Δg$ effect in the pair further suppresses singlet-exciton formation in addition to thermal spin polarization of the individual carriers. Since the $Δg$ process involves weakly bound carrier pairs rather than free electrons and holes, in contrast to thermal spin polarization, the effect does not depend significantly on current or temperature.
Detection of the Irradiated Donor in the LMXBs 4U 1636-536 (=V801 Ara) and 4U 1735-444 (=V926 Sco)
Creators: name: Casares, J.
name: Cornelisse, R.
name: Steeghs, D.
name: Charles, P. A.
name: Hynes, R. I.
name: O'Brien, K.
name: Strohmayer, T. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Phase-resolved VLT spectroscopy of the bursting Low Mass X-ray Binaries 4U 1636-536/V801 Ara and 4U 1735-444/V926 Sco is presented. Doppler images of the NIII 4640 Bowen transition reveal compact spots which we attribute to fluorescent emission from the donor star and enable us to define a new set of spectroscopic ephemerides. We measure Kem=277+-22 km/s and Kem=226+-22 km/s from the NIII spots in V801 Ara and V926 Sco respectively which represent strict lower limits to the radial velocity semi-amplitude of the donor stars. Our new ephemerides provide confirmation that lightcurve maxima in V801 Ara and likely V926 Sco occur at superior conjunction of the donor star and hence photometric modulation is caused by the visibility of the X-ray heated donor. The velocities of HeII 4686 and the broad Bowen blend are strongly modulated with the orbital period, with phasing supporting emission dominated by the disc bulge. In addition, a reanalysis of burst oscillations in V801 Ara, using our spectroscopic T0, leads to K1=90-113 km/s. We also estimate the K-corrections for all possible disc flaring angles and present the first dynamical constraints on the masses of these X-ray bursters. These are K2=360+-74 km/s, f(M)=0.76+-0.47 Msun and q=0.21-0.34 for V801 Ara and K2=298+-83 km/s, f(M)=0.53+-0.44 Msun and q=0.05-0.41 for V926 Sco. Disc flaring angles alpha>12 deg and q~0.26-0.34 are favoured for V801 Ara whereas the lack of K1 constraint for V926 Sco prevents tight constraints on this system. Although both binaries seem to have intermediate inclinations, the larger equivalent width of the narrrow NIII line in V801 Ara at phase 0.5 relative to phase 0 suggests that it has the higher inclination of the two.
description: Accepted for publication in MNRAS, 10 pages, 11 figures
title: A Dying Woman Transferred from Plastic Surgery Hospital
Creators: name: Zhang, Yue
Publisher: name: EURORAD
Year: 2020
Subjects: subject: Neuroradiology
subject: CNS
subject: Neuroradiology brain
subject: CT
subject: CT-Angiography
subject: Embolism / Thrombosis
subject: Clinical Cases

description: Clinical History: A comatose 35-year-old female patient was transferred to our emergency room from a private plastic surgery hospital by its working staff. GCS was scored 3. Brain CT showed multiple low-density strips or dots within vessels. The staff admitted she had received autologous fat injection in temporal sites for cosmetic purpose in their hospital, but could not recover from anaesthesia after surgery.

description: 35 years, female
THE EFFECTS OF BEACONS, COMMENTS, AND TASKS ON PROGRAM COMPREHENSION PROCESS IN SOFTWARE MAINTENANCE
Creators: name: Fan, Quyin
Publisher: name: Maryland Shared Open Access Repository
Year: 2010
Subjects: Beacon
Cognitive Process
Comments
Eye tracking
Program Comprehension

description: Program comprehension is the most important and frequent process in software maintenance. Extensive research has found that individual characteristics of programmers, differences of computer programs, and differences of task-driven motivations are the major factors that affect the program comprehension results. There is no study specifically addressing the program comprehension process. There is no study specifically focusing on the explanation of how the programmers' comprehension process is affected by beacons, the in-line comments, and the task purposes.  In addition, most of the studies conducted in the past used either verbal protocols or cloze procedures to collect data. The verbal protocols require subjects to organize their ideas for speaking aloud; the cloze procedures are difficult to grade a program comprehension performance. However, using an eye-tracker to collect eye-movement data that reflect the cognitive process during the program comprehension process can reduce these difficulties. Furthermore, advanced technology makes it possible to collect the eye movement data with minimum intrusion. The current body of literature in program comprehension shows that there are few studies using the eye-movement data to analyze program comprehension process, although the eye-movement data has been studied for decades in psychological experiments.

 This dissertation examines the program comprehension process by analyzing the eye-movement data. The results of this study suggest that code scanning sequences are affected by the presence of the comments and the motivations of the tasks. Programmers can chunk bigger code blocks in programs with comments than in programs without comments. Different beacon sets are identified for different tasks. The results reveal that the presence of the comments does not improve compound beacon identification efficiency. Instead, it decreases the compound beacon identification efficiency. This study demonstrates that the eye-movement data is useful to trace and analyze the program comprehension process. The findings of the dissertation may shed light on the benefits of the beacons in program comprehension for machine learning. In addition, learning and teaching computer programming languages can benefit from the findings in this study.
Remarks on dispersion-improved shallow water equations with uneven bottom
Creators: name: Clamond, Didier
Publisher: name: arXiv
Year: 2020
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: It is shown that asymptotically consistent modifications of (Boussinesq-like) shallow water approximations, in order to improve their dispersive properties, can fail for uneven bottoms (i.e., the dispersion is actually not improved). It is also shown that these modifications can lead to ill-posed equations when the water depth is not constant. These drawbacks are illustrated with the (fully nonlinear, weakly dispersive) Serre equations. We also derive asymptotically consistent, well-posed, modified Serre equations with improved dispersive properties for constant slopes of the bottom.
Quantum Mechanical Breakdown of Perfect Homogeneity in Reheating After Inflation
Creators: name: Kaya, Ali
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of quantum fields in time dependent classical backgrounds, we notice that the number of created particles with a given momentum largely deviates about its mean value. Guided with this observation we use a complete orthonormal family of localized wave packets to calculate the deviations in the number and energy densities of particles produced in a volume of a given size during reheating. It turns out that at the end of reheating there exists (in general tiny) spatial variations in these densities on Hubble length scales over which local interactions are incapable of restoring homogeneity. This signals the destruction of perfect homogeneity attained after inflation due to the quantum nature of particle production process in reheating.
description: 9 pages, revtex4, v3: minor changes, a reference added