cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The development of Army relevant peptide-based surface enhanced Raman scattering (SERS) sensors for biological threat detection
Creators: name: Farrell, Mikella E.
name: Strobbia, Pietro
name: Sarkes, Deborah A.
name: Stratis-Cullum, Dimitra N.
name: Cullum, Brian
name: Pellegrino, Paul M.
Publisher: name: SPIE
Year: 2016

description: SPIE Commercial + Scientific Sensing and Imaging, 17-21 APRIL 2016, Baltimore, MD, United States
description: The utility of peptide-based molecular sensing for the development of novel biosensors has resulted in a significant increase in their development and usage for sensing targets like chemical, biological, energetic and toxic materials. Using peptides as a molecular recognition element is particularly advantageous because there are several mature peptide synthesis protocols that already exist, peptide structures can be tailored, selected and manipulated to be highly discerning towards desired targets, peptides can be modified to be very stable in a host of environments and stable under many different conditions, and through the development of bifunctionalized peptides can be synthesized to also bind onto desired sensing platforms (various metal materials, glass, etc.). Two examples of the several Army relevant biological targets for peptide-based sensing platforms include Ricin and Abrin. Ricin and Abrin are alarming threats because both can be weaponized and there is no antidote for exposure. Combining the sensitivity of SERS with the selectivity of a bifunctional peptide allows for the emergence of dynamic hazard sensor for Army application.
Interprofessional Approaches to Medication Management in Older Adults: A Scoping Review Protocol
Creators: name: Bird, Rona
name: Tezcan-Güntekin, Hürrem
name: Erdogdu, Ilknur
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Veterinary Medicine
subject: Public Health
subject: Medicine and Health Sciences
subject: Health Services Research
subject: interprofessional cooperation
subject: medication safety
subject: polypharmacy

description: The planned scoping review will investigate how and to what extent interprofessional health care approaches in hospital, long-term care, or community settings impact medication safety in older adults with chronic illnesses.
title: Cardiac T2-star magnetic resonance assessment of myocardial iron overload
Creators: name: Yuki, Masako
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: MR
subject: Decision analysis
subject: Imaging sequences
subject: Cardiac Assist Devices
subject: Quality assurance

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Cardiac failure secondary to transfusional overload remains the most common cause of the death in the patients with thalassemia major (1, 2). In Japan, thalassemia major is rare and enough research on other diseases which cause iron overload has not...
From pacifist to anti-fascist? Sylvia Pankhurst and the fight against war and fascism
Creators: name: Huckestein, Erika Marie
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: Historians of women's involvement in the interwar peace movement, and biographers of Sylvia Pankhurst have noted her seemingly contradictory positions in the face of two world wars: she vocally opposed the First World War and supported the Allies from the outbreak of the Second World War. These scholars view Pankhurst's transition from pacifism to anti-fascism as a reversal or subordination of her earlier pacifism. This thesis argues that Pankhurst's anti-fascist activism and support for the British war effort should not be viewed as a departure from her earlier suffrage and anti-war activism. The story of Sylvia Pankhurst's political activism was not one of stubborn commitment to, or rejection of, a static succession of ideas, but one of an active engagement with changing politics, and confrontation with the new ideology of fascism, in a society still struggling to recover from the Great War.
Long-Term Impacts of KIPP Middle Schools: Phase II
Creators: name: Nichols-Barrer, Ira
name: Gleason, Philip
name: Demers, Alicia
name: Bartlett, Maria
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Education

description: This study will conduct the second phase of a randomized controlled trial (RCT) of the long-term effects of KIPP middle schools. We will measure impacts on enrollment and persistence in four-year postsecondary programs.
How PERMA impacts primary school-aged children’s well-being and mental health: A Scoping Review protocol
Creators: name: Turner, Jasmine
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Business
subject: Child Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Children
subject: Mental health
subject: PERMA
subject: Positive Psychology
subject: Resilience
subject: Well-being

description: A scoping review to examine whether the elements of PERMA impact children's well-being and mental health.
title: New Analysis Method for Intravascular Hemodynamics by Velocity Encoded Cine Phase-Contrast MR Images
Creators: name: Fukuyama, Atsushi
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Haemodynamics / Flow dynamics
subject: Computer Applications-Detection, diagnosis
subject: MR-Angiography
subject: Vascular

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Hemodynamics plays a very important role in the initiation and progression of vascular diseases (1).Therefore, it is important to evaluate the blood flow in the vessel accurately. In recent years, Magnetic Resonance [MR] made a remarkable...
Trimming teams: an examination of decision making processes in intercollegiate athletic departments when multiple varsity sport programs are eliminated
Creators: name: Skolnick, Jordan
Publisher: name: University of North Carolina at Chapel Hill
Year: 2011

description: The combination of an economic downturn and the excessive increase in operating costs in intercollegiate athletics has created large deficits in the annual budgets for many institutions. As athletic departments struggle to balance their budgets, they are forced to make tough decisions on how to reduce expenses. One solution has been to eliminate multiple varsity sport programs. The purpose of this study is to determine the primary reasons why institutions eliminate varsity sports teams. Specifically, this study will examine the decision making process used to come to the conclusion of eliminating multiple teams at once. This study confirmed previous findings that the primary reasons for eliminating varsity sport programs were Athletic Department Budget Shortages and Gender Equity Implications. This study also found that athletic departments should utilize a set of principles to guide their decision making process when contemplating the discontinuation of varsity sport programs.
The Association Between Social Frailty and Wellbeing in Older Adults - Addendum 22/06/2021
Creators: name: Thompson, Brielle
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: older adults
subject: social frailty
subject: wellbeing

description: The current study will provide the first direct empirical test of how social frailty is related to meaningful indicators of wellbeing (apathy, demoralisation, social anxiety, resilience, life satisfaction), after adjusting for other physical, cognitive, and mental health covariates previously linked to social frailty. The study will also include multiple measures of social frailty to establish whether these different measures converge in their associations with important indicators of wellbeing, and if not, whether a specific measure of social frailty, or types of social frailty measure, have particular sensitivity to these important aspects of wellbeing.
Illiberal Partners? Understanding Orbán's Pivot to Russia
Creators: name: Clute, Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In July 2014, Viktor Orbán spoke to a group of ethnic Hungarians in Romania, and during this speech Orbán made his now famous quip about “illiberal democracy.” This thesis is an examination of how Hungary arrived at a cultural moment in which a democratically elected leader can disparage democracy, and the broader impact this cultural moment had on the geopolitical landscape of Central Europe. This thesis argues that the illiberal tendencies of Viktor Orbán coupled with developments in both domestic and international politics, over the past quarter century in Hungary, led to an increasingly positive relationship between Russia and Hungary. Under the leadership of Viktor Orbán democratic norms are thwarted, and core principals, such as freedom of the press, are no longer touted as cornerstones of Hungarian democracy. This thesis examines the rise of illiberal democracy in Hungary, and ponders what Hungary’s shift to illiberal democracy means for the EU.
Characterization of analytical figures of merit of a sub-diffraction limited fiber bundle array for SERS imaging
Creators: name: Languirand, Eric R.
name: Cullum, Brian
Publisher: name: SPIE
Year: 2016

description: SPIE Commercial + Scientific Sensing and Imaging, 17-21 APRIL 2016, Baltimore, MD, United States
description: Super resolution chemical imaging can provide high spatial resolution images that contain chemically specific information. Additionally, using a technique such as Raman scattering provides molecular specific information based on the inherent vibrations within the analyte of interest. In this work, commercially available fiber bundle arrays (1mm diameter) consisting of 30,000 individual fiber elements (4μm diameter) that are then modified to obtain surface enhanced Raman scatter are employed. This allows for the visualization of vibrational information with high spatial (i.e. sub-diffraction limited) resolution over the 30,000 individual points of interrogation covering a total imaging diameter of approximately 20μm in a non-scanning format. Using these bundles, it has been shown that dithering can increase the spatial resolution of the arrays further by obtaining several sub-element shifted images. To retain the spatial resolution of such images, cross talk associated with these tpared bundles must be kept at a negligible level.In this paper, a study of luminescent particles isolated in individual fiber wells has been performed to characterize the cross talk associated with these fiber bundles. Scanning-electron microscope (SEM) images provide nanometric characterization of the fiber array, while luminescent signals allow for the quantitation of cross talk between adjacent fiber elements. From these studies negligible cross-talk associated with both untapered and tapered bundles was found to exist.
title: Intradiscal injections of platelet-enriched plasma for degenerative disc disease: degenerative aspects on MRI follow-up
Creators: name: Alexandre, Andrea
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology spine
subject: Interventional non-vascular
subject: Percutaneous
subject: MR
subject: Experimental investigations

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Degeneration of the intervertebral disc is a common occurrence which, although asymptomatic in many cases, may result in low back pain. Significant progress has been made in understanding the pathophysiology of degenerative disc disease (DDD) and as...
Causal Inference for Social Network Data
Creators: name: Ogburn, Elizabeth L.
name: Sofrygin, Oleg
name: Díaz, Iván
name: van der Laan, Mark J.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: We describe semiparametric estimation and inference for causal effects using observational data from a single social network. Our asymptotic results are the first to allow for dependence of each observation on a growing number of other units as sample size increases. In addition, while previous methods have implicitly permitted only one of two possible sources of dependence among social network observations, we allow for both dependence due to transmission of information across network ties and for dependence due to latent similarities among nodes sharing ties. We propose new causal effects that are specifically of interest in social network settings, such as interventions on network ties and network structure. We use our methods to reanalyze an influential and controversial study that estimated causal peer effects of obesity using social network data from the Framingham Heart Study; after accounting for network structure we find no evidence for causal peer effects. Supplementary materials for this article are available online.
Spin-density functional theories and their $+U$ and $+J$ extensions: a comparative study of transition metals and transition metal oxides
Creators: name: Chen, Hanghui
name: Millis, Andrew J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Previous work on the physical content of exchange correlation functionals that depend on both charge and spin densities is extended to elemental transition metals and a wider range of perovskite transition metal oxides. A comparison of spectra and magnetic moments calculated using exchange correlation functionals depending on charge density only or on both charge and spin densities, as well as the $+U$ and $+J$ extensions of these methods confirms previous conclusions that the spin-dependent part of the exchange correlation functional provides an effective Hund's interaction acting on the transition metal $d$ orbitals. For the local spin density approximation and spin-dependent Perdew-Burke-Ernzerhof generalized gradient approximation, the effective Hund's exchange is found to be larger than 1 eV. The results indicate that at least as far as applications to transition metals and their oxides are concerned, $+U$, $+J$ and +dynamical mean field theory extensions of density functional theory should be based on exchange-correlation functionals of charge density only.
description: 21 pages and 8 figures
Additional file 1 of Impact of value similarity on social trust in medical students: a cross-sectional web survey
Creators: name: Kondo, Satoshi
name: Ichikawa, Shuhei
name: Izumiya, Masashi
name: Eto, Masato
Publisher: name: figshare
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology

description: Social trust questionnaire: Trust questionnaire used for evaluating social trust in medical students (Japanese version).
Large area super-resolution chemical imaging via rapid dithering of a nanoprobe
Creators: name: Languirand, Eric R.
name: Cullum, Brian
Publisher: name: SPIE
Year: 2015

description: SPIE Sensing Technology + Applications, 20-24 APRIL 2015, Baltimore, MD, United States
description: Super-resolution chemical imaging via Raman spectroscopy provides a significant ability to simultaneously or pseudosimultaneously monitor numerous label-free analytes while elucidating their spatial distribution on the surface of the sample. However, spontaneous Raman is an inherently weak phenomenon making trace detection and thus superresolution imaging extremely difficult, if not impossible. To circumvent this and allow for trace detection of the few chemical species present in any sub-diffraction limited resolution element of an image, we have developed a surface enhanced Raman scattering (SERS) coherent fiber-optic imaging bundle probe consisting of 30,000 individual fiber elements. When the probes are tapered, etched and coated with metal, they provide circular Raman chemical images of a sample with a field of view of approximately 20?m (i.e. diameter) via the array of 30,000 individual 50 nm fiber elements. An acousto-optic tunable filter is used to rapidly scan or select discrete frequencies for multi- or hyperspectral analysis. Although the 50nm fiber element dimensions of this probe inherently provide spatial resolutions of approximately 100nm, further increases in the spatial resolution can be achieved by using a rapid dithering process. Using this process, additional images are obtained one-half fiber diameter translations in the x- and y- planes. A piezostage drives the movement, providing the accurate and reproducible shifts required for dithering. Optimal probability algorithms are then used to deconvolute the related images producing a final image with a three-fold increase in spatial resolution. This paper describes super-resolution chemical imaging using these probes and the dithering method as well as its potential applications in label-free imaging of lipid rafts and other applications within biology and forensics.
Digital vocabulary learning games: a scoping review
Creators: name: Imanol, Sidharth
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Linguistics
subject: FOS: Languages and literature
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The objective of this scoping review is to provide a comprehensive overview of the relevant research that has gone into teaching vocabulary through digital games. In particular, the purpose of the review will be to determine what techniques have been employed in gamified learning in this domain, how successful they have been, and where there might be gaps for future research.
title: An investigation of the influence of image distortion on the measurement of apparent diffusion coefficient (ADC) values in the cerebral cortex using diffusion MRI simulator
Creators: name: Ushijima, Daigo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Artifacts
subject: Computer Applications-General
subject: Image manipulation / Reconstruction
subject: Neuroradiology brain

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: In the study of neurodegenerative diseases, apparent diffusion coefficient (ADC) values in the cerebral cortex are investigated using diffusion-weighted images (DWIs) based on echo-planar imaging (EPI) [1]. It has been reported that the cortical ADC...
Overlapping latin subsquares and full products
Creators: name: Browning, Joshua M.
name: Vojtěchovský, Petr
name: Wanless, Ian M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B15

description: We derive necessary and sufficient conditions for there to exist a latin square of order $n$ containing two subsquares of order $a$ and $b$ that intersect in a subsquare of order $c$. We also solve the case of two disjoint subsquares. We use these results to show that: (a) A latin square of order $n$ cannot have more than $\frac nm{n \choose h}/{m\choose h}$ subsquares of order $m$, where $h=\lceil(m+1)/2\rceil$. Indeed, the number of subsquares of order $m$ is bounded by a polynomial of degree at most $\sqrt{2m}+2$ in $n$. (b) For all $n\ge5$ there exists a loop of order $n$ in which every element can be obtained as a product of all $n$ elements in some order and with some bracketing.
Μελέτη της επίδρασης του ιωδιούχου καλίου στη μείωση της χρώσης των δοντιών που σχετίζεται με την εφαρμογή SDF και AgF
Creators: name: Αλ Μοχαμαντ, Ιωσήφ Γρηγόριος του Φαγίεζ Θεοφάνη
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Φθοριούχος διαμινικός άργυρος (SDF)
Φθοριούχος άργυρος (AgF)
Ιωδιούχο κάλιο (KI)
Silver diamine fluoride (SDF)
Silver fluoride (AgF)
Potassium iodide (KI)

description: Η παρούσα μεταπτυχιακή εργασία είχε ως στόχο να εξετάσει την επίδραση της εφαρμογής του KI στο πρόβλημα της δυσχρωμίας που προκαλεί το SDF και το AgF. Για τον σκοπό αυτό 40 δοκίμια δημιουργήθηκαν απο ανθρώπινους ακέραιους γομφίους και χωρίστηκαν σε 4 ομάδες(SDF,SDF+KI,AgF,AgF+KI).Η χρωματική μεταβολή αναλύθηκε με τη χρήση φασματοφωτόμετρου (UV-2401PC, Shimadzu, Kyoto, Ιαπωνία) σε 4 χρονικές στιγμές. Για την καταγραφή και εξήγηση της χρωματικής μεταβολής σε κάθε δoκίμιο χρησιμοποιήθηκαν το CIELAB χρωματικό μοντέλο και η CIEDE2000 εξίσωση χρώματος. Με βάση τα αποτελέσματα της μελέτης μας η χρήση του ΚΙ οδηγεί σε μειωμένη χρώση των οδοντικών ιστών κατά τη χρήση των σκευασμάτων SDF και AgF , ωστόσο πρέπει να αποσαφηνιστεί η σταθερότητα αυτής της συμπεριφοράς σε μεγαλύτερα χρονικά διαστήματα και σε κλινικές συνθήκες.
description: This master's thesis aimed to examine the effect of the application of KI on the discoloration problem caused by SDF and AgF. For this purpose, 40 samples were created from human intact molars and divided into 4 groups (SDF, SDF+KI, AgF, AgF+KI). The color change was analyzed using a spectrophotometer (UV-2401PC, Shimadzu, Kyoto, Japan) in 4 moments in time. To record and explain the color change in each sample, the CIELAB color model and the CIEDE2000 color equation were used. Based on the results of our study, the use of KI leads to reduced staining of dental tissues when using SDF and AgF formulations, however, the stability of this behavior over longer periods of time and in clinical conditions needs to be clarified.
Characterization of the role of oxide spacers in multilayer-enhanced SERS probes
Creators: name: Strobbia, Pietro
name: Henegar, Alex
name: Gougousi, Theodosia
name: Cullum, Brian
Publisher: name: SPIE
Year: 2015

description: SPIE Sensing Technology + Applications, 20-24 APRIL 2015, Baltimore, MD, United States
description: Surface enhanced Raman spectroscopy (SERS) has several advantages as a transduction method for many types of optical sensors, due to its sensitivity and potential for multiplexed detection. Over the years, SERS probes have been developed to be capable of extreme sensitivities, with single molecule SERS having been achieved in randomly located hot-spots of colloidal aggregates. However, these structures suffer from significant irreproducibility, due to the randomness of the aggregation. Alternatively, strategies such as ordered 2D arrays or enhancement based on single probes (e.g. immunno-nanosensors, nanostars) have high reproducibilities but limited enhancement factors. In our laboratory a widely applicable enhancing geometry based on metal thin films interleaved with dielectric spacers that takes advantage of interaction into the volume of the probe (perpendicularly to the surface) to enhance the signal independently from the underlying structure has been developed. Preliminary evidence into the mechanism of this enhancement suggests that the dielectric spacer material and thickness play a key role in the magnitude of the resulting enhancement. In this paper we investigate the thickness dependence of the multilayer enhancement using substrates fabricated using ultrathin oxide deposited by atomic layer deposition as spacers. The SERS enhancement measured for substrates based on semiconductor and dielectric materials have been characterized in order to understand the origin of this dependence. In addition a model to describe the mechanism by which the spacer properties influence the multilayer enhancement will also be discussed.
Non-stoichiometry and Defects in the Weyl Semimetals TaAs, TaP, NbP, and NbAs
Creators: name: Besara, Tiglet
name: Rhodes, Daniel
name: Chen, Kuan-Wen
name: Zhang, Qui
name: Zeng, Bin
name: Xin, Yan
name: Balicas, Luis
name: Baumbach, Ryan E.
name: Siegrist, Theo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a structural study of the Weyl semimetals TaAs, TaP, NbP, and NbAs, utilizing diffraction techniques (single crystal x-ray diffraction and energy dispersive spectroscopy) and imaging techniques (transmission electron microscopy/scanning transmission electron microscopy). We observe defects of various degrees, leading to non-stoichiometric single crystals of all four semimetals. While TaP displays a large pnictide deficiency with composition TaP$_{0.83(3)}$, and stacking faults accompanied by anti-site disorder and site vacancies, TaAs displays transition metal deficiency with composition Ta$_{0.92(2)}$As and a high density of stacking faults. NbP also displays pnictide deficiency, yielding composition NbP$_{0.95(2)}$, and lastly, NbAs display very little deviation from a 1:1 composition, NbAs$_{1.00(3)}$, and is therefore recommended to serve as the model compound for these semimetals.
description: 8 pages, 4 figures, 1 table
Characterization of ultrathin oxide-based multilayer SERS nanoprobes for intracellular sensing
Creators: name: Strobbia, Pietro
name: Cullum, Brian
Publisher: name: SPIE
Year: 2014

description: SPIE Sensing Technology + Applications, 5-9 MAY 2014, Baltimore, MD, United States
description: Photonic nanosensors (e.g. PEBBLES, quantum dots-based sensors, etc.) have begun to allow the study of these previously inaccessible environments. Unfortunately, many current techniques suffer from biocompatibility issues, limited ability to monitor multiple species simultaneously and/or complicated fabrication chemistries. Recently SERS immuno-nanoprobes have demonstrated the capability to overcome many of these limitations. Such intracellular SERS nanosensors require optimized substrate geometry to achieve the sensitivity necessary to detect the trace analyte concentrations present. To address this, we have developed a novel multilayered SERS substrate nanoarchitecture that is capable of enhancing SERS signals by over two orders of magnitude relative to comparable single layer substrates. These structures are fabricated using different deposition techniques (PVD, ALD, etc) in which multiple films of Ag (between 10-125 nm thick) are alternately deposited with ultrathin dielectric layers (tens of Å). This geometry allows surface plasmons from different metal layers to be generated. The resulting multilayer enhancement increases the sensitivity while also improving the robustness of the nanoprobes. In this paper, we investigate and characterize SERS immuno-nanoprobes fabricated using this multilayered geometry and discuss the effect of the dielectric spacer (Ag2O, TiO2, Ta2O5) work functions and conductive band offsets on the multilayer enhancement.
Corruption in Latin America: Political, Economic, Structural, and Institutional Causes
Creators: name: Biddle, Lauren
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006

description: This work examines the causes of corruption in eighteen Latin American countries from 1994 to 2005. With Transparency International's Corruption Perceptions Index as the dependent variable, this study utilizes a pooled cross-sectional times series design to link corruption levels with a number of explanatory variables. There is evidence that economic development, inequality, trade, structural reforms index, democracy, federal structure, and ethno-linguistic fractionalization have significant effects on corruption. However, resource exports, age of democracy, and public sector size do not appear to affect corruption levels. This investigation draws on previous research on corruption but differs through having an exclusively Latin American focus and through its use of a time series design.
title: Transbrachial vs transfemoral approach for the percutaneous sclerotherapy of male varicocele.
Creators: name: Cecchelli, Carlo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Veins / Vena cava
subject: Genital / Reproductive system male
subject: Interventional vascular
subject: Catheter venography
subject: Fluoroscopy
subject: Percutaneous
subject: Catheters
subject: Sclerosis
subject: Venous access
subject: Varices

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Varicocele is an abnormal dilation of the pampiniform plexus veins, caused by inversion of blood flow within the internal spermatic vein, which drains into the renal vein on the left side and, in 90% of cases, directly into the inferior vena cava on...
ТУРИЗМДА БАРҚАРОР РИВОЖЛАНИШ ВА ЭКОЛОГИК ОМИЛЛАР
Creators: name: Шарапова, Гулчехра
Publisher: name: Zenodo
Year: 2025

description: Мазкур мақолада Ўзбекистонда туризм соҳасининг барқарор ривожланиши ва экологик омиллар ўртасидаги ўзаро боғлиқлик иқтисодий кўрсаткичлар асосида таҳлил қилинган. Сўнгги йилларда туризм секторидаги ўсиш билан бирга, атроф-муҳитга бўлган таъсир ҳам ортгани қайд этилган. Мақолада 2022–2024 йиллар давомидаги реал статистик маълумотлар, туристлар оқими, ЯИМдаги улуш, солиқ тушумлари ҳамда экологик муаммолар таҳлил қилиниб, 2025 йилгача бўлган прогнозлар келтирилган. Шунингдек, туризмнинг барқарорлиги учун экологик сиёсат, экотуризм ва ресурсларни тежаш каби таклифлар берилган.
Observation of a topologically non-trivial surface state in half-Heusler PtLuSb (001) thin films
Creators: name: Logan, J. A.
name: Patel, S. J.
name: Harrington, S. D.
name: Polley, C. M.
name: Schultz, B. D.
name: Balasubramanian, T.
name: Janotti, A.
name: Mikkelsen, A.
name: Palmstrøm, C. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The discovery of topological insulators (TIs), materials with bulk band gaps and protected cross-gap surface states, in compounds such as Bi2Se3 has generated much interest in identifying topological surface states (TSSs) in other classes of materials. In particular, recent theory calculations suggest that TSSs may be found in half-Heusler ternary compounds. If experimentally realizable, this would provide a materials platform for entirely new heterostructure spintronic devices that make use of the structurally-identical but electronically-varied nature of Heusler compounds. Here, we show the presence of a TSS in epitaxially grown thin films of the half-Heusler compound PtLuSb. Spin and angle-resolved photoemission spectroscopy (ARPES), complemented by theoretical calculations, reveals a surface state with linear dispersion and a helical tangential spin texture consistent with previous predictions. This experimental verification of TI behavior is a significant step forward in establishing half-Heusler compounds as a viable material system for future spintronics devices.
description: 12 pages (8 main, 4 supplemental), 9 figures (5 main, 4 supplemental), V2 updated reference, V3 updated abbreviation
Evaluation of endogenous species involved in brain tumors using multiphoton photoacoustic spectroscopy
Creators: name: Dahal, Sudhir
name: Cullum, Brian
Publisher: name: SPIE
Year: 2013

description: SPIE DEFENSE, SECURITY, AND SENSING, 29 APRIL - 3 MAY 2013, Baltimore, Maryland, United States
description: It has been shown that using non-resonant multiphoton photoacoustic spectroscopy (NMPPAS), excised brain tumor (grade III astrocytoma) and healthy tissue can be differentiated from each other, even in neighboring biopsy samples[1, 2]. Because of this, this powerful technique offers a great deal of potential for use as a surgical guidance technique for tumor margining with up to cellular level spatial resolution[3]. NMPPAS spectra are obtained by monitoring the non-radiative relaxation pathways via ultrasonic detection, following two-photon excitation with light in the optical diagnostic window (740nm-1100nm). Based upon significant differences in the ratiometric absorption of the tissues following 970nm and 1100nm excitation, a clear classification of the tissue can be made. These differences are the result of variations in composition and oxidation state of certain endogenous biochemical species between healthy and malignant tissues. In this work, NADH, NAD+ and ATP were measured using NMPPAS in model gelatin tissue phantoms to begin to understand which species might be responsible for the observed spectral differences in the tissue. Each species was placed in specific pH environments to provide control over the ratio of oxidized to reduced forms of the species. Ratiometric analyses were then conducted to account for variability caused due to instrumental parameters. This paper will discuss the potential roles of each of the species for tumor determination and their contribution to the spectral signature.
Η επίδραση διαφόρων μεθόδων επεξεργασίας επιφάνειας στην αντοχή στην απόσχιση του δεσμού ρητίνης στο διπυριτικό λίθιο
Creators: name: Γεωργιάδου, Γεωργία Κυριάκου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Επεξεργασία επιφάνειας
Αντοχή δεσμού
Διάτμηση
Surface treatments
Bond strength
Shear test

description: Σκοπός αυτής της εργασίας ήταν η αξιολόγηση της αντοχής δεσμού που επιτυγχάνεται μεταξύ ενός κεραμικού υλικού, του διπυριτικού λιθίου, και της ρητινώδους κονίας κατά τη διάτμηση, μετά από την εφαρμογή διαφορετικών πρωτοκόλλων επεξεργασίας της επιφάνειας του κεραμικού. Χρησιμοποιήθηκαν έξι διαφορετικά πρωτόκολλα επεξεργασίας της επιφάνειας του κεραμικού υλικού, που περιλάμβαναν συνδυασμό μηχανικών και χημικών μεθόδων. Συγκεκριμένα, εφαρμόστηκαν σε διαφορετικούς συνδυασμούς η αεραποτριβή με σωματίδια οξειδίου του αλουμινίου 29μm, το Ivoclean, το Monobond Etch and Prime, το Monobond Plus και το Adhese Universal. Στη συνέχεια συγκολλήθηκε στην κεραμική επιφάνεια η ρητινώδης κονία Variolink Esthetic LC. Ακολούθησε η δοκιμή διάτμησης από την οποία η υψηλότερη τιμή αντοχής δεσμού παρατηρήθηκε στην ομάδα στην οποία εφαρμόστηκε ένα ολοκληρωμένο πρωτόκολλο επεξεργασίας της κεραμικής επιφάνειας. Η χαμηλότερη τιμή αντοχής δεσμού στη διάτμηση παρατηρήθηκε στην ομάδα στην οποία δεν έγινε καμία προετοιμασία της κεραμικής επιφάνειας. Συμπεράναμε ότι η εφαρμογή του σιλανίου επέφερε στατιστικά σημαντική βελτίωση στις τιμές της αντοχής δεσμού στη διάτμηση. Η αεραποτριβή δεν είχε στατιστικά σημαντική επίδραση στις τιμές της αντοχή δεσμού και δεν οδήγησε σε επαρκή αντοχή δεσμού. Τέλος, η εφαρμογή του Ivoclean δεν οδήγησε σε στατιστικά σημαντική βελτίωση της αντοχής δεσμού στη διάτμηση.
description: The aim of this thesis was to evaluate shear bond strength between a specific ceramic material, lithium disilicate, and a resin cement after the application of different bonding protocols. In this study six different protocols were implemented to treat the surface of lithium disilicate. These protocols included combinations of mechanical and chemical methods to assess their influence on shear bond strength to a resin cement. These methods included sandblasting with aluminum oxide particles 29μm, Ivoclean, Monobond Etch and Prime, Monobond Plus and Adhese Universal. The resin cement Variolink Esthetic LC was then bonded to the ceramic surfaces. Then we performed shear test for all samples. Highest shear bond strength was achieved in the last group, where a complete treatment protocol was used. Lowest shear bond strength was observed in the first group where no treatment of the ceramic surface was applied. We concluded that silanization had a significant effect on shear bond strength. Sandblasting did not have a statistically significant improvement of the bond strength and did not lead to adequate bond strength. Ivoclean did not have a statistically significant influence on shear bond strength.
Additional file 2 of Impact of value similarity on social trust in medical students: a cross-sectional web survey
Creators: name: Kondo, Satoshi
name: Ichikawa, Shuhei
name: Izumiya, Masashi
name: Eto, Masato
Publisher: name: figshare
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology

description: Brief summary used in this study: Brief summary of the medical education system and certification of medical students in Japan.
Mimicking brain tissues by doping scatterers into gelatin tissue phantoms and determination of chemical species responsible for NMPPAS
Creators: name: Dahal, Sudhir
name: Cullum, Brian
Publisher: name: SPIE
Year: 2012

description: SPIE Defense, Security, and Sensing, 23-27 APRIL 2012, Baltimore, Maryland, United States
description: It has been shown that non-resonant multiphoton photoacoustic spectroscopy (NMPPAS) has a great potential to be used as a high resolution surgical guidance technique during brain tumor surgery due to its ability of non-invasive or minimally invasive tumor differentiation. However, for experimental purposes associated with method validation, the use of real tissues is not always ideal because of issues such as availability, safety, storage, chemical doping, necessary control of size and shape, etc. To overcome these issues, tissue phantoms made from animal tissues and/or biochemical constituents, are often employed for such analyses. This work demonstrates the ability to develop and characterize gelatin based tissue phantoms with comparable optical and acoustic properties to real tissues by doping the phantoms with a scattering substance, 0.3 μm diameter Al2O3 particles. Using these phantoms, light scattering coefficients (μs) of 39 cm-1 have been generated, which are comparable to real brain tissue, thus making them a great alternative to real tissue for validation studies. In addition, this work also investigates the non-fluorescent species NAD+ found in the tissues, to evaluate its potential for being detected by NMPPAS. NMPPAS spectra of NAD+ shows a very promising beginning to determine other chemical species such as flavins, collagen, tryptophan, etc responsible for NMPPAS spectral signatures, associated with tumorogenesis.
title: 3D Automated breast ultrasound (ABUS): pictorial review of applications and clinical utility.
Creators: name: Domingo, Angels
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cancer
subject: Education
subject: Ultrasound
subject: Breast

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: To review the potential applications of ABUS such as detection and characterization of benign and malignant lesions, evaluation of breast implants and its complications (i.e. rupture), screening of asymptomatic dense-breasted women, amongst...
title: 18 F-fluorethyltyrosine PET combined with MRI can be used for treatment related changes of cerebral gliomas
Creators: name: Koren, Aleš
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Image guided radiotherapy
subject: Treatment effects
subject: Molecular imaging
subject: Localisation
subject: PET-CT
subject: MR
subject: Oncology
subject: CNS

description: Learning objectives Background Imaging findings OR Procedure details Conclusion References Personal Information
description: Learning objectives: The best-studied amino acid tracer is 11C-methionine. Because of the short half-life of 11C (20 min), 18F-labeled aromatic amino acid analogs with longer half-lifes have been developed and studied for tumor imaging. 18F-fluorethyltyrosine PET...
Μελέτη και ανάλυση μηχανικών ιδιοτήτων σε τρισδιάστατα ικριώματα ιστών με πεπερασμένα στοιχεία
Creators: name: Τούσκας, Αθανάσιος Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Ικριώματα ιστών
Μηχανικές ιδιότητες
Ανάλυση πεπερασμένων στοιχείων
Tissue scaffolds
Mechanical properties
Finite element analysis

description: Στην παρούσα διπλωματική εργασία πραγματοποιείται μία μελέτη πάνω στο αντικείμενο των ικριωμάτων ιστών και πιο συγκεκριμένα στο κομμάτι αυτής που σχετίζεται με τη μορφή του ικριώματος ,τους πόρους που πιθανόν να έχει, αλλά και στις μηχανικές του ιδιότητες. Εν συνεχεία της μελέτης αυτής, γίνεται προσομοίωση ορισμένων θεωρητικών μοντέλων στο πρόγραμμα πεπερασμένων στοιχείων ANSYS. Πραγματοποιήθηκε ανάλυση σε ένα συμπαγές μοντέλο και σε μοντέλο με πόρους, χρησιμοποιώντας δύο διαφορετικά υλικά τόσο για το συμπαγές, όσο και για το πορώδες. Ακολούθως της ανάλυσης αυτής, έγινε παράθεση των προβλημάτων που εμφανίζονται, τα οποία σχετίζονται με την προσομοίωση των μοντέλων, τη μορφή του ικριώματος ιστού, τον τύπο του ιστού καθώς και κάποια πιθανά προβλήματα που πιστεύεται ότι θα προκύψουν κατά την κατασκευή αυτού. Τέλος, γίνεται αναφορά και ανάλυση για τις πιθανές λύσεις των προβλημάτων.
description: In this thesis we will discuss the subject of tissue scaffolds and more specifically the part of them related to the form of the scaffold, the porosity of the scaffold and also its mechanical properties. Following this study, some theoretical models of a scaffold are simulated in the finite element program called ANSYS. An analysis was performed on a solid model and also in a model with pores, using tow different materials both for the solid and for the porous model. After this analysis, we discussed the problems that appear, witch are related to the simulation of the models, the form of the tissue scaffold, the type of tissue, as well as some possible problems that are believed to occur during the construction of the scaffold. At the end, we discuss some possible solutions for these problems.
The Influence of a Kinematically Cold Young Component on Disc-Halo Decompositions in Spiral Galaxies: Insights from Solar Neighbourhood K-giants
Creators: name: Aniyan, S.
name: Freeman, K. C.
name: Gerhard, O. E.
name: Arnaboldi, M.
name: Flynn, C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In decomposing the HI rotation curves of disc galaxies, it is necessary to break a degeneracy between the gravitational fields of the disc and the dark halo by estimating the disc surface density. This is done by combining measurements of the vertical velocity dispersion of the disc with the disc scale height. The vertical velocity dispersion of the discs is measured from absorption lines (near the V-band) of near-face-on spiral galaxies, with the light coming from a mixed population of giants of all ages. However, the scale heights for these galaxies are estimated statistically from near-IR surface photometry of edge-on galaxies. The scale height estimate is therefore dominated by a population of older (> 2 Gyr) red giants. In this paper, we demonstrate the importance of measuring the velocity dispersion for the same older population of stars that is used to estimate the vertical scale height. We present an analysis of the vertical kinematics of K-giants in the solar vicinity. We find the vertical velocity distribution best fit by two components with dispersions of 9.6 +/- 0.5 km/s and 18.6 +/- 1.0 km/s, which we interpret as the dispersions of the young and old disc populations respectively. Combining the (single) measured velocity dispersion of the total young + old disc population (13.0 +/- 0.1 km/s) with the scale height estimated for the older population would underestimate the disc surface density by a factor of ~ 2. Such a disc would have a peak rotational velocity that is only 70% of that for the maximal disc, thus making it appear submaximal.
Optimization of SAM-based multilayer SERS substrates for intracellular analyses: the effect of terminating functional groups
Creators: name: Klutse, Charles
name: Cullum, Brian
Publisher: name: SPIE
Year: 2011

description: SPIE Defense, Security, and Sensing, 25-29 APRIL 2011, Orlando, Florida, United States
description: Surface-enhanced Raman scattering (SERS) has become an attractive analytical tool for intracellular analyses due to its minimally invasive nature and molecular specificity. However, highly reproducible and optimized SERS substrates have been seen as a key to developing SERS as a reliable analytical methodology. This research focuses on optimizing self assembled monolayer (SAM)-based multilayer SERS substrates for a wide range of applications, including ultratrace detection of biomolecules within individual living cells. Multilayer SERS substrates are comprised of alternating layers of metal film and dielectric spacer cast on a monolayer of nanostructures. Using these substrates, varying degrees of SERS enhancement factors (EF) have been achieved, some as large as 10-fold relative to optimized single film over nanostructures substrates. To gain a mechanistic understanding of multilayered SERS enhancements, SAMs have been used to systematically vary spacer thickness. The results revealed spacer-dependent SERS EFs. To further the understanding of multilayer SERS enhancement, this work discusses the use of terminating functional groups in the optimization of SAM multilayer SERS substrates. SAMs having various functional groups were used as dielectric spacers to systematically vary the dielectric constant. To investigate the effect of the pH on the uniformity of the SAMs and their multilayer SERS enhancement, SAMs were formed in alkylthiol solutions of different pH and the subsequent SERS enhancement were evaluated. It was found that using alklythiol SAMs with appropriate terminating functional groups the SAM multilayer can achieve SERS EFs ranging between 108 and1010 and the substrates yielded highly reproducible SERS signals. The effect of the pH on the SERS enhancement is selective on the type of the terminating functional group of the alkylthiol used for SAM formation.
title: Feasible Sonographic features of Thyroid nodules for Liquid-based cytology: Comparison with Conventional cytology
Creators: name: Rim, Jee Hyun
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Diagnostic procedure
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Conventional cytology (CC) uses several directly smeared slides of US-guided aspirated specimens. This method can make a number of slides, but has some limitations related to inadequate sampling such as a bloody background with low cellularity, dry...
User-Curated Image Collections: Modeling and Recommendation
Creators: name: Li, Yuncheng
name: Cong, Yang
name: Mei, Tao
name: Luo, Jiebo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Multimedia (cs.MM)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Most state-of-the-art image retrieval and recommendation systems predominantly focus on individual images. In contrast, socially curated image collections, condensing distinctive yet coherent images into one set, are largely overlooked by the research communities. In this paper, we aim to design a novel recommendation system that can provide users with image collections relevant to individual personal preferences and interests. To this end, two key issues need to be addressed, i.e., image collection modeling and similarity measurement. For image collection modeling, we consider each image collection as a whole in a group sparse reconstruction framework and extract concise collection descriptors given the pretrained dictionaries. We then consider image collection recommendation as a dynamic similarity measurement problem in response to user's clicked image set, and employ a metric learner to measure the similarity between the image collection and the clicked image set. As there is no previous work directly comparable to this study, we implement several competitive baselines and related methods for comparison. The evaluations on a large scale Pinterest data set have validated the effectiveness of our proposed methods for modeling and recommending image collections.
description: in IEEE BigData 2015