cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Earliest Dated Finds of Pottery in Ribe
Creators: name: Kristian Madsen, Per
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 9, 57-64
description: This paper describes the earliest dated sherds of glazed pottery found in Ribe. Probably all the 43 sherds are of foreign origin, Andenne, Northern France and maybe also Flanders. The exact datings by dendrochronology confirm that some glazed pottery was imported to Ribe in the second part of the 12th century (c. 1150; after 1144 but before 1180; between 1180 and c. 1225). These imports may have led to a later, local production of glazed pottery in South Scandinavia. The datings from Ribe correspond with new results from Ltibeck and confirm that the dating of glazed pottery in Denmark should not always be restricted to the standard dating of highly-decorated pottery.
The Relationship of Serotonin to Depression in Parkinson's Disease
Creators: name: Mayeux, Richard Paul
name: Stern, Yaakov
name: Sano, Mary
name: Williams, Janet B. W.
name: Cote, Lucien J.
Publisher: name: Columbia University
Year: 1988
Subjects: Neurology
Movement disorders
Parkinson's disease
Depression, Mental
Serotonin

description: We have previously reported a correlation between depression in patients with idiopathic Parkinson's disease and decreased concentrations of the cerebrospinal fluid content of the serotonin metabolite, 5-HIAA. To further examine this relationship, we repeated the study in a new cohort of patients while they remained on dopaminergic medications, conducted follow-up interviews and examinations in our original cohort, and conducted an open trial of the serotonin precursor, 5-hydroxytryptophan in a group of new patients with depression. We were again able to demonstrate a significant reduction in cerebrospinal 5-HIAA in depressed patients in comparison to controls and patients without depression. Demented patients with Parkinson's disease, particularly those with concurrent depression, had the lowest values of 5-HIAA. No new cases of depression occurred in our orignial cohort after 21/2 years of follow-up, and depression remitted following conventional or experimental treatment in four patients. Depression improved in six of the seven new patients following oral 5-hydroxytryptophan. Three of these patients allowed a repeat lumbar puncture, and the concentration of 5-HIAA increased following 5-hydroxytryptophan. These three studies support our hypothesis that depression in idiopathic Parkinson's disease is associated with a reduction in brain serotonin. However, it also suggests that other factors, biological or environmental, may be causal factors.
The Impact of Human Immunodeficiency Virus on Cognitive Function
Creators: name: Stern, Yaakov
Publisher: name: Columbia University
Year: 1991
Subjects: AIDS dementia complex
Cognition
Neuropsychology
HIV infections

description: Although the initial focus in the characterization of acquired immunodeficiency syn-drome (AIDS) was on the array of opportunistic infections that could be pathologicallyand radiologically identified, it soon became clear that a great number of patientssuffered from cognitive deficits. Today, Centers for Disease Control (CDC) criteria forAIDS recognize the presence of dementia as a defining feature. Reports of cognitivechanges in otherwise asymptomatic seropositive individuals raise the possibility thatan important early feature of the disease could be the impact on intellectual function.Human immunodeficiency virus (HIV) is found centrally, in cerebrospinal fluid andbrain, even before any medical symptoms are evident, suggesting that there may be adirect effecton the central nervous system (CNS). In this chapter I review our investiga-tions and those of others of the neuropsychologic changes in HIV-positive asymptom-atic individuals, and briefly discuss dementia in AIDS.
Archaeomagnitude Determinations for Britain and South-West Usa from 600AD to 1700AD and their Implications for Medieval Pottery Studies
Creators: name: Games, KP
name: Davey, PJ
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 9, 43-50
description: A report on the archaeomagnetic results for eighteen British and five South- West American pottery samples shows that in both areas sampled field strength fluctuations occurred over the 1100 years between 600 and 1700 years AD. The variations in Britain and South-West America are not in phase and suggest a westward drift of non-dipole features of 0. 32% per year. Whilst these results offer the possibility of dating individual pottery sherds from excavations, limitations in the method, period coverage and lack of resources for farther work suggest that considerable work will be needed before a service to archaeologists could be offered.
The Relationship of Hypertension in the Elderly to AD, Vascular Dementia, and Cognitive Function
Creators: name: Posner, Holly B.
name: Tang, Mingxin
name: Luchsinger, Jose A.
name: Lantigua, Rafael Antonio
name: Stern, Yaakov
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 2002
Subjects: Neurology
Alzheimer's disease
Hypertension in old age
Vascular dementia
Cognition--Age factors

description: Background: Hypertension at the age of 45 to 50 years may predispose to AD later in life. It is not known whether hypertension after age 65 years also contributes to AD risk, and its effect on cognitive function is also not fully understood. Methods: Data were analyzed from 1,259 Medicare recipients free of dementia in a longitudinal study covering a 7-year period (1991 to 1998). The effect of hypertension was first examined in relationship to the risk for incident AD and then to incident vascular dementia (VaD) using Cox proportional hazards models. Changes in performance over time on tasks of memory, language, and visuospatial/cognitive function were compared in those with and without hypertension using generalized estimating equations. Results: Of the 1,259 subjects, 731 (58.1%) had a history of hypertension associated with diabetes, stroke, and heart disease. A history of hypertension was not associated with an increased risk for AD (rate ratio [RR] 0.9, 95% CI 0.7 to 1.3) but was associated with an increased risk for VaD (1.8 [1.0 to 3.2]). Hypertension was not associated with changes in memory, language, and general cognitive function in normal individuals over time. Compared with individuals with neither hypertension nor heart disease, those with hypertension or heart disease alone had no increase in risk for VaD. However, when both were present, there was a threefold increase in risk for VaD. A sixfold increase in risk was observed when both hypertension and diabetes were present. Conclusions: Hypertension after age 65 years is not associated with AD and does not adversely affect memory, language, or general cognitive function. A history of hypertension may be an antecedent to VaD, particularly in the presence of heart disease or diabetes.
The Fourth Gerald Dunning Memorial Lecture: Sex, Magic and Dr Gerald Dunning
Creators: name: Cherry, John
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 9, 5-20
description: This paper reviews three articles written by Gerald Dunning on inscriptions on medieval pottery, the scene on a medieval jug from London, and phallic imagery on medieval jugs. There appears to be insufficient evidence to maintain a magical significance in the inscriptions, and the scene on the London jug may represent the Expulsion of Adam and Eve from Paradise rather than a brothel. Phallic imagery may be related to ritual social occasions by analogy with the bronze figure known as Jack of Hilton. It is suggested that some medieval pottery decoration may be inspired by social occasions such as feasts.
Vitamin D Umbrella Review Appendix, Chakhtoura.docx
Creators: name: Chakhtoura, Marlene
Publisher: name: figshare
Year: 2021
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Appendix 1: Search strategyAppendix 2 – Quality assessment of systematic reviews/meta-analyses on vitamin D with or without calcium supplementation and fracture risk, using AMSTAR-2 tool.
Appendix 3 - Sample sizes derived and type of analysis used in each trial in the systematic reviews/meta-analyses on vitamin D and calcium supplementation
Appendix 4: Description of the JBI Chapter 10 items for umbrella review and summary of the evidence of research syntheses
Horizon-preserving dualities and perturbations in non-canonical scalar field cosmologies
Creators: name: Geshnizjani, Ghazal
name: Kinney, William H.
name: Dizgah, Azadeh Moradinezhad
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalize the cosmological duality between inflation and cyclic contraction under the interchange $a \leftrightarrow H$ to the case of non-canonical scalar field theories with varying speed of sound. The single duality in the canonical case generalizes to a family of three dualities constructed to leave the cosmological acoustic horizon invariant. We find three classes of models: (I) DBI inflation, (II) the non-canonical generalization of cyclic contraction, and (III) a new cosmological solution with rapidly decreasing speed of sound and relatively slowly growing scale factor, which we dub {\it stalled} cosmology. We construct dual analogs to the inflationary slow roll approximation, and solve for the curvature perturbation in all three cases. Both cyclic contraction and stalled cosmology predict a strongly blue spectrum for the curvature perturbations inconsistent with observations.
description: 36 pages, LaTeX (v2: references added, version submitted to JCAP)
The Influence of Smoking on the Risk of Alzheimer's Disease
Creators: name: Merchant, Carol
name: Tang, Mingxin
name: Albert, Steven M.
name: Manly, Jennifer J.
name: Stern, Yaakov
name: Mayeux, Richard Paul
Publisher: name: Columbia University
Year: 1999
Subjects: Neurology
Alzheimer's disease
Smoking--Health aspects
Epidemiology

description: OBJECTIVE: To investigate the relationship between cigarette smoking and Alzheimer's disease (AD) in a prospective community-based study in northern Manhattan.  BACKGROUND: Results from previous case-control studies suggest that there is a protective effect of smoking on AD. However, the recent prospective Rotterdam Study found that there was an increased risk of AD for smokers, particularly those without an apolipoprotein E (APOE)-{epsilon}4 allele.  METHODS: The authors examined data from a community-based longitudinal study of local elders residing in northern Manhattan to determine whether tobacco use increases or decreases the risk of AD. Information regarding the frequency of tobacco use was obtained in structured interviews at the baseline assessment. Standardized clinical assessments were subsequently completed on each subject at annual visits during which incident cases of AD were identified.  RESULTS: The relative risk (RR) of AD among former smokers was 0.7 (95% CI, 0.5 to 1.1). The RR among current smokers was 1.9 (95% CI, 1.2 to 3.0). Smokers without an APOE-{epsilon}4 allele had the highest risk of AD (RR = 2.1; 95% CI, 2.1 to 3.7) compared with those with an APOE-{epsilon}4 allele (RR = 1.4; 95% CI, 0.6 to 3.3).  CONCLUSIONS: Our results are consistent with the observation that smoking increases the risk of AD. However, we found that among previous smokers who quit smoking, there may be a slight reduction in the risk of AD.
Performance of wild and domestic strains of diploid and triploid rainbow trout (Oncorhynchus mykiss) in response to environmental challenges
Creators: name: Scott, Mark Adam
Publisher: name: University of British Columbia
Year: 2012

description: To determine what may contribute to the poorer survival of triploid (3n) trout in lake stocking programs relative to their diploid (2n) counterparts, we compared whole animal performance in response to environmental challenges in juvenile 2n and 3n fish from four wild strains and one domestic strain of rainbow trout. Spanning four years (2008, 2009, 2010, and 2011), wild fish were caught from nature and spawned in-hatchery along with hatchery-reared domestic trout. Offspring from all strains were raised to eight months as both 2n and 3n and exposed to low oxygen, swimming, and high temperature challenges. The only measure of performance to show a consistent difference between 2n and 3n individuals across all strains was time to loss of equilibrium (LOE) as a result of hypoxia exposure (~10% air saturation, 16 torr). Triploid trout always showed a shorter time to LOE (by 15-86% depending on the strain) relative to their 2n counterparts, with the exception of lake reared trout which showed no significant differences between 2n and 3n time to LOE. Additionally, there were no consistent effects of ploidy on critical oxygen tension, ṀO2, critical swimming speed (Ucrit), critical thermal maxima (CTMax), or muscle enzyme activities. We observed significant effects of strain on all performance measures except for CTMax. In general, the Fraser Valley domestic strain had higher Ucrit, higher ṀO2, and greater muscle enzyme activities than did Blackwater, Tzenzaicut, and Pennask wild conspecifics, suggesting that domestication affects a variety of traits in addition to growth rates.
Appendix for Vitamin D Supplementation and Fractures in Adults: A Systematic Umbrella Review of Meta-Analyses of Controlled Trials .docx
Creators: name: Chakhtoura, Marlene
Publisher: name: figshare
Year: 2021
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Appendix 1: Search strategyAppendix 2 – Quality assessment of systematic reviews/meta-analyses on vitamin D with or without calcium supplementation and fracture risk, using AMSTAR-2 tool.
Appendix 3 - Sample sizes derived and type of analysis used in each trial in the systematic reviews/meta-analyses on vitamin D and calcium supplementation
Appendix 4: Description of the JBI Chapter 10 items for umbrella review and summary of the evidence of research syntheses
Effects of low energy electron irradiation on formation of nitrogen-vacancy centers in single-crystal diamond
Creators: name: Schwartz, Julian
name: Aloni, Shaul
name: Ogletree, D. Frank
name: Schenkel, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Exposure to beams of low energy electrons (2 to 30 keV) in a scanning electron microscope locally induces formation of NV-centers without thermal annealing in diamonds that have been implanted with nitrogen ions. We find that non-thermal, electron beam induced NV-formation is about four times less efficient than thermal annealing. But NV-center formation in a consecutive thermal annealing step (800C) following exposure to low energy electrons increases by a factor of up to 1.8 compared to thermal annealing alone. These observations point to reconstruction of nitrogen-vacancy complexes induced by electronic excitations from low energy electrons as an NV-center formation mechanism and identify local electronic excitations as a means for spatially controlled room-temperature NV-center formation.
The Pottery Supply of Duisburg, Rhineland, in the Ninth-Tenth Century
Creators: name: Kluge Pinsker, Antje
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 9, 51-56
description: This paper discusses a local pottery production in Duisburg of the 9th and 10th centuries. An attempt is made to show how this production developed and how it successfully competed with imported Vorgebirge ceramics. Two sources of the local pottery are discussed - one from kilns in Duisburg and the other from the settlement itself.
A unified framework for non-Brownian suspension flows and soft amorphous solids
Creators: name: Lerner, Edan
name: Düring, Gustavo
name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: While the rheology of non-Brownian suspensions in the dilute regime is well-understood, their behavior in the dense limit remains mystifying. As the packing fraction of particles increases, particle motion becomes more collective, leading to a growing length scale and scaling properties in the rheology as the material approaches the jamming transition. There is no accepted microscopic description of this phenomenon. However, in recent years it has been understood that the elasticity of simple amorphous solids is governed by a critical point, the unjamming transition where the pressure vanishes, and where elastic properties display scaling and a diverging length scale. The correspondence between these two transitions is at present unclear. Here we show that for a simple model of dense flow, which we argue captures the essential physics near the jamming threshold, a formal analogy can be made between the rheology of the flow and the elasticity of simple networks. This analogy leads to a new conceptual framework to relate microscopic structure to rheology. It enables us to define and compute numerically normal modes and a density of states. We find striking similarities between the density of states in flow, and that of amorphous solids near unjamming: both display a plateau above some frequency scale ω* ~ |z_c-z|, where z is the coordination of the network of particles in contact, z_c = 2D where D is the spatial dimension. However, a spectacular difference appears: the density of states in flow displays a single mode at another frequency scale ω_{min} << ω* governing the divergence of the viscosity.
description: 6 pages, 5 figures
Twelfth and Thirteenth Century Coventry Wares, with Special Reference to a Waster Group from the Cannon Park Estate (Lychgate Road), Coventry
Creators: name: Redknap, Mark
Publisher: name: Archaeology Data Service
Year: 2023

description: Medieval Ceramics: Journal of the Medieval Ceramics Research Group, 9, 65-78
description: Until the establishment of the Nuneaton pottery industry in the 13th century, Coventry relied largely on locally produced wares. This report summarizes 12th century Coventry Sandy and Glazed Wares, and describes a waster group of slightly later date from the Cannon Park Estate - the first to be published from the Coventry area. Other evidence for the local medieval ceramic industry is reviewed.
Bosmina fatalis
Creators: name: Dela Paz, Erica Silk P.
name: Lopez, Mark Louie D.
name: David, Christian Irvin Harvey A.
name: Dela Cruz, Dave Ryan A.
name: Viernes, Gian Alfonso A.
name: Wong, Jac Fritgerald
name: Papa, Rey Donne S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Branchiopoda
Diplostraca
Bosminidae
Bosmina
Bosmina fatalis

description: Bosmina fatalis (Baird, 1864) Materials examined. Philippines: Luzon: Manila: Kalayaan Creek (14.6900° N, 120.9366° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0097–0098, 2 spec.). Estero de la Reina (14.6011° N, 120.9763° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0099A–0099F, 4 spec.). Marikina River (14.6342° N, 121.0936° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0100A–B, 2 spec.). Short description. The head is large and rectangular in shape, with no clear demarcation between the head and body along the dorsal surface. Head shield is present. The eye is small near the rostrum. The long rostrum is fused with the immobile antennules, with a slight concavity between the 2 parts. The antennules have a characteristic pointed projection along the midline. The postabdominal claw is almost straight with 6 spines and the distal part finely ciliated. Morphological characteristics concur with the descriptions and illustrations of Fernando (1992) and Pascual et al. (2014). Ecological distribution. Bosmina fatalis is widely distributed in lakes, rivers, creeks, and reservoirs. This species is a primary grazer in the freshwater habitats and has a good defensive mechanism (akinesis) against its predator which allows them to live in the pelagic zone despite of its small body size (Rizo et al. 2017).
description: Published as part of Dela Paz, Erica Silk P., Lopez, Mark Louie D., David, Christian Irvin Harvey A., Dela Cruz, Dave Ryan A., Viernes, Gian Alfonso A., Wong, Jac Fritgerald & Papa, Rey Donne S., 2018, Freshwater microcrustaceans (Cladocera: Anomopoda and Ctenopoda, Copepoda: Cyclopoida and Calanoida) in the highly urbanized Metropolitan Manila area (Luzon, Philippines), pp. 751-762 in Check List 14 (5) on page 753, DOI: 10.15560/14.5.751
description: {"references": ["Pascual JAF, Rizo EZC, Han B, Dumont HJ, Papa RDS (2014) Taxonomy and distribution of four Cladoceran families (Branchiopoda: Cladocera: Moinidae, Bosminidae, Chydoridae and Sididae) in Philippine inland waters. Raffles Bulletin of Zoology 62: 771 - 794.", "Rizo EZC, Gu Y, Papa RDS, Dumont HJ, Han B (2017) Identifying functional groups and ecological roles of tropical ad subtropical freshwater Cladocera in Asia. Hydrobiologia 799 (1): 83 - 99. https // doi. org / 10.1007 / s 10750 - 017 - 3199 - y"]}
The Predictors Study: Development and Baseline Characteristics of the Predictors 3 Cohort
Creators: name: Stern, Yaakov
name: Gu, Yian
name: Cosentino, Stephanie
name: Azar, Martina
name: Lawless, Siobhan
name: Tatarina, Oksana
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Cognition
subject: Alzheimer's disease--Forecasting
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Mild cognitive impairment

description: INTRODUCTION: The Predictors study was designed to predict the length of time to major disease outcomes in Alzheimer's disease (AD) patients. Here, we describe the development of a new, Predictors 3, cohort. METHODS: Patients with prevalent or incident AD and individuals at-risk for developing AD were selected from the North Manhattan community and followed annually with instruments comparable to those used in the original two Predictors cohorts. RESULTS: The original Predictors cohorts were clinic based and racially/ethnically homogenous (94% white, 6% black; 3% Hispanic). In contrast, the 274 elders in this cohort are community-based and ethnically diverse (39% white, 40% black, 21% other; 78% Hispanic). Confirming previous observations, psychotic features were associated with poorer function and mental status and extrapyramidal signs with poorer function. DISCUSSION: This new cohort will allow us to test observations made in our original clinic-based cohorts in patients that may be more representative of the general community.
Thermocyclops decipiens
Creators: name: Dela Paz, Erica Silk P.
name: Lopez, Mark Louie D.
name: David, Christian Irvin Harvey A.
name: Dela Cruz, Dave Ryan A.
name: Viernes, Gian Alfonso A.
name: Wong, Jac Fritgerald
name: Papa, Rey Donne S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexanauplia
Cyclopoida
Cyclopidae
Thermocyclops
Thermocyclops decipiens

description: Thermocyclops decipiens (Kiefer, 1929) Materials examined. Philippines: Luzon: Manila: UST Botanical Garden pond (14.6101° N, 120.9885° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0188–0189, 2 spec.). La Mesa Ecopark Pond (14.7113° N, 121.0756° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0182A– B, 0183–0184, 3 spec.). La Mesa Ecopark Lagoon (14.7121° N, 121.0756° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0185–0186, 2 spec.). Creek in Muñoz (14.6574° N, 121.0157° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0187A–B, 1 spec.). Veterans Memorial Medical Center lagoon (14.6571° N, 121.0380° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0190, 1 spec.). Short description. The body is generally large at the prosome and narrows to the urosome. The arms of the seminal receptacle are wide and straight. The caudal rami are smooth and naked. The marginal extension at the P4 basipodite bears few spinules. The distal margin at P4 intercoxal sclerite is high and triangular in shape. The apical medial spine of P4 endopodite is 2–2.7 times longer than the lateral spine. All the morphological characters concur with the description of Mirabdullayev (2003) and Dela Paz et al. (2016a). Ecological distribution. Thermocyclops decipiens is found in large variety of freshwater habitats including lakes, rivers, ponds, reservoirs, swamps, and falls. This species inhabits the freshwater, also survive in relatively saline or eutrophic condition.
description: Published as part of Dela Paz, Erica Silk P., Lopez, Mark Louie D., David, Christian Irvin Harvey A., Dela Cruz, Dave Ryan A., Viernes, Gian Alfonso A., Wong, Jac Fritgerald & Papa, Rey Donne S., 2018, Freshwater microcrustaceans (Cladocera: Anomopoda and Ctenopoda, Copepoda: Cyclopoida and Calanoida) in the highly urbanized Metropolitan Manila area (Luzon, Philippines), pp. 751-762 in Check List 14 (5) on pages 756-757, DOI: 10.15560/14.5.751
description: {"references": ["Dela Paz ESP, Holynska MK, Papa RDS (2016 a) Mesocyclops and Thermocyclops (Copepoda, Cyclopidae) in the major Visayas Islands (Central Philippines). Crustaceana 89: 787 - 809. https: // doi. org / 10.1163 / 15685403 - 00003547"]}
Redshift space distortions in f(R) gravity
Creators: name: Jennings, Elise
name: Baugh, Carlton M.
name: Li, Baojiu
name: Zhao, Gong-Bo
name: Koyama, Kazuya
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use large volume N-body simulations to predict the clustering of dark matter in redshift space in f(R) modified gravity cosmologies. This is the first time that the nonlinear matter and velocity fields have been resolved to such a high level of accuracy over a broad range of scales in this class of models. We find significant deviations from the clustering signal in standard gravity, with an enhanced boost in power on large scales and stronger damping on small scales in the f(R) models compared to GR at redshifts z<1. We measure the velocity divergence (P_θθ) and matter (P_δδ) power spectra and find a large deviation in the ratios \sqrt{P_θθ/P_δδ} and P_δθ/P_δδ, between the f(R) models and GR for 0.03
description: 19 pages, 14 figures, accepted for publication in MNRAS
Lepton number violation in top quark and neutral B meson decays
Creators: name: Delepine, D.
name: Castro, G. Lopez
name: Quintero, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Lepton number violation (LNV) can be induced by Majorana neutrinos in four-body decays of the neutral B meson and the top quark. We study the effects of Majorana neutrinos in these |ΔL|=2 decays in an scenario where a single heavy neutrino can enhance the amplitude via the resonant mechanism. Using current bounds on heavy neutrino mixings, the most optimistic branching ratios turn out to be at the level of 10^{-6} for \bar{B} -> D^+e^-e^-π^+ and t -> bl^+l^+W^- decays. Searches for these LNV decays at future facilities can provide complementary constraints on masses and mixings of Majorana neutrinos.
description: 15 pages, 6 figures, "Added comments on sensitivities. Version accepted for publication"
On the detectability of dual jets from binary black holes
Creators: name: Moesta, Philipp
name: Alic, Daniela
name: Rezzolla, Luciano
name: Zanotti, Olindo
name: Palenzuela, Carlos
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We revisit the suggestion that dual jets can be produced during the inspiral and merger of supermassive black holes when these are immersed in a force-free plasma threaded by a uniform magnetic field. By performing independent calculations and by computing the electromagnetic emission in a way which is consistent with estimates using the Poynting flux, we show that a dual-jet structure is present but energetically subdominant with respect to a non-collimated and predominantly quadrupolar emission, which is similar to the one computed when the binary is in electrovacuum. While our findings set serious restrictions on the detectability of dual jets from coalescing binaries, they also increase the chances of detecting an EM counterpart from these systems.
description: 4 pages, 3 figures
Stability at Random Close Packing
Creators: name: Wyart, Matthieu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The requirement that packings of hard particles, arguably the simplest structural glass, cannot be compressed by rearranging their network of contacts is shown to yield a new constraint on their microscopic structure. This constraint takes the form a bound between the distribution of contact forces P(f) and the pair distribution function g(r): if P(f) \sim f^θ and g(r) \sim (r-σ)^(-γ), where σ is the particle diameter, one finds that γ \geq 1/(2+θ). This bound plays a role similar to those found in some glassy materials with long-range interactions, such as the Coulomb gap in Anderson insulators or the distribution of local fields in mean-field spin glasses. There is ground to believe that this bound is saturated, offering an explanation for the presence of avalanches of rearrangements with power-law statistics observed in packings.
Incidence and Predictors of Seizures in Patients with Alzheimer's Disease
Creators: name: Amatniek, Joan C.
name: Hauser, Willard Allen
name: Del Castillo-Castaneda, Caridad
name: Jacobs, Diane
name: Marder, Karen
name: Bell, Karen L.
name: Albert, Marilyn
name: Brandt, Jason
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2006
Subjects: Neurology
Alzheimer's disease--Patients
Convulsions
Alzheimer's disease--Forecasting

description: PURPOSE: To determine cumulative incidence and predictors of new-onset seizures in mild Alzheimer's disease (AD) with a cohort followed prospectively. Limited information is available on the incidence of seizures, and no reports exist of seizure predictors in AD patients. METHODS: Mild AD patients were prospectively followed at 6-month intervals to estimate incidence of unprovoked seizures, compare age-specific risk of unprovoked seizures with population norms, and identify characteristics at baseline (demographics, duration and severity of AD, physical and diagnostic test findings, and comorbid medical and psychiatric conditions) influencing unprovoked seizure risk. Review of study charts and medical records supplemented coded end-point data. RESULTS: The cumulative incidence of unprovoked seizures at 7 years was nearly 8%. In all age groups, risk was increased compared with a standard population, with an 87-fold increase in the youngest group (age 50-59 years) and more than a threefold increase in the oldest group (age 85+ years). In multivariate modeling, independent predictors of unprovoked seizures were younger age [relative risk (RR), 0.89 per year increase in age; 95% confidence interval (CI), 0.82-0.97], African-American ethnic background (RR, 7.35; 95% CI, 1.42-37.98), more-severe dementia (RR, 4.15; 95% CI, 1.06-16.27), and focal epileptiform findings on electroencephalogram (EEG) (RR, 73.36; 95% CI, 1.75-3075.25). CONCLUSIONS: Seizure incidence is increased in people starting with mild-to-moderate AD. Younger individuals, African Americans, and those with more-severe disease or focal epileptiform findings on EEG were more likely to have unprovoked seizures.
The Neuropsychological Profiles of Mild Alzheimer's Disease and Questionable Dementia as Compared to Age-Related Cognitive Decline
Creators: name: Van Vliet, Elise A.
name: Manly, Jennifer J.
name: Tang, Mingxin
name: Marder, Karen
name: Bell, Karen L.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2003
Subjects: Alzheimer's disease--Patients
Neuropsychology
Cognition
Aging

description: Test scores from a comprehensive neuropsychological battery administered to 1602 subjects consisting of 1347 subjects with probable Alzheimer's disease (AD), 100 subjects with questionable dementia (QD) and 155 non-demented elderly control subjects were cross-sectionally analyzed. Subjects with probable AD were categorized as mild (n = 244), moderate (n = 480), severe (n = 376), and very severe (n = 247) according to modified mini mental status exam (mMMSE) scores. Mean scores on individual neuropsychological tests are provided for each group of subjects. Stratified random sampling was performed to select a sample of mild AD subjects who were matched in age and education to non-demented elderly controls, and analyses focused on the performance of QD subjects and mild AD subjects, whose scores were compared to those of the elderly control subjects. Selected scores were organized by cognitive domain and logistic regressions were used to determine the domains and individual tests within each that were most predictive of group status. Results suggested a profile of scores associated with QD and mild AD including impaired recall of verbal information for both groups. Areas of lower functioning in QD subjects as compared to elderly controls included category fluency and visuospatial ability.
Arctodiaptomus dorsalis
Creators: name: Dela Paz, Erica Silk P.
name: Lopez, Mark Louie D.
name: David, Christian Irvin Harvey A.
name: Dela Cruz, Dave Ryan A.
name: Viernes, Gian Alfonso A.
name: Wong, Jac Fritgerald
name: Papa, Rey Donne S.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Hexanauplia
Calanoida
Diaptomidae
Arctodiaptomus
Arctodiaptomus dorsalis

description: Arctodiaptomus dorsalis (Marsh, 1907) Materials examined. Philippines: Luzon: Manila: Pasig River (14.5604° N, 121.0659° E), coll. DRA Dela Cruz, GAA Viernes, JF Wong, ESP Dela Paz and ML Lopez, June 2016 (UST-ZRC 0253A–B, USTZRC 0254, USTZRC 0255A–B, and USTZRC 0256A–B, 4 spec.). Short description. The body is generally elongated with a long antennule that generally reaches the tip of the urosome. Male specimen: antennule is geniculated. Right exopodite 2 of P5 leg is relatively large and bears a long, thin, and strongly curved terminal claw on the posteromedian area; and with a short lateral spine protruding near the middle of exopodite 2. Female specimen: antennule is straight. The pair of P5 is symmetrical. All the morphological characteristics concur with the descriptions and illustrations of Dussart and Defaye (2001) and Papa et al. (2012). Ecological distribution. Arctodiaptomus dorsalis is found in lakes and rivers. This species is an invasive copepod hence that can tolerate eutrophic condition (Papa et al. 2012).
description: Published as part of Dela Paz, Erica Silk P., Lopez, Mark Louie D., David, Christian Irvin Harvey A., Dela Cruz, Dave Ryan A., Viernes, Gian Alfonso A., Wong, Jac Fritgerald & Papa, Rey Donne S., 2018, Freshwater microcrustaceans (Cladocera: Anomopoda and Ctenopoda, Copepoda: Cyclopoida and Calanoida) in the highly urbanized Metropolitan Manila area (Luzon, Philippines), pp. 751-762 in Check List 14 (5) on page 757, DOI: 10.15560/14.5.751
description: {"references": ["Dussart BH, Defaye D (2001) Introduction to the Copepoda. 2 nd edition. Guide to the Identification of the Microinvertebrates of the Continental Waters of the World, No. 16. Backhuys Publishers, Leiden. 344 pp.", "Papa RDS, Li H, Tordesillas DT, Han B, Dumont HJ (2012) Massive Invasion of Arctodiaptomus dorsalis (Copepoda, Calanoida, Diaptomidae) in Philippine lakes; a threat to Asian zooplankton biodiversity? Biological Invasions 14 (12): 2471 - 2478. http: // doi. org / 10.1007 / s 10530 - 012 - 0250 - 9"]}
Political legitimacy and regime change : the 1972 British Columbia election
Creators: name: Roussin, Della Shirley
Publisher: name: University of British Columbia
Year: 2012

description: The 1972 British Columbia general election marked the end of the twenty-year dominance of the Social Credit Party and Premier W.A.C. Bennett. Dave Barrett led the New Democratic Party to its first majority government ushering in the first Social Democratic government in the province's history. The reversal of Social Credit fortunes in 1972 should not be seen, however, as a rejection of the core values of the Social Credit party, but rather as a crisis of legitimacy faced by the party and its aging leader. As a case study, the 1972 election provides an opportunity to examine the agenda-setting function of media during an election campaign and the effects of declining political legitimacy and trust on voter behaviour.
The Influence of Cognitive Reserve on Strategy Selection in Normal Aging
Creators: name: Barulli, Daniel James
name: Rakitin, Brian C.
name: Lemaire, Patrick
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2013
Subjects: Neurology
Neuropsychology
Cognition
Aging

description: Cognitive reserve (CR) has been proposed as a latent variable that can account for the frequent discrepancy between an individual's underlying level of brain pathology and their observed clinical outcome. A possible behavioral manifestation of CR is best strategy choice. Older adults have been shown to choose sub-optimal strategies for performing various tasks. The present study attempted to investigate whether greater levels of CR could predict greater strategy selection, particularly in older adults. A computational estimation task was administered to 20 healthy young adults (mean age = 24.7 +/- 3.6; 20-31 years) and 18 healthy older adults (68.2 +/- 4.5; 62-77 years) wherein participants needed to estimate the product of two two-digit numbers by using one of two strategies. The results revealed an effect of age group on strategy choice and supported the hypothesis that CR is associated with increased strategy selection abilities.
Collective Evidence for Inverse Compton Emission from External Photons in High-Power Blazars
Creators: name: Meyer, Eileen T.
name: Fossati, Giovanni
name: Georganopoulos, Markos
name: Lister, Matthew L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the first collective evidence that Fermi-detected jets of high kinetic power (L_kin) are dominated by inverse Compton emission from upscattered external photons. Using a sample with a broad range in orientation angle, including radio galaxies and blazars, we find that very high power sources (L_kin > 10^45.5 erg s^{-1}) show a significant increase in the ratio of inverse Compton to synchrotron power (Compton dominance) with decreasing orientation angle, as measured by the radio core dominance and confirmed by the distribution of superluminal speeds. This increase is consistent with beaming expectations for external Compton (EC) emission, but not for synchrotron self Compton (SSC) emission. For the lowest power jets (L_kin < 10^43.5 erg s^{-1}), no trend between Compton and radio core dominance is found, consistent with SSC. Importantly, the EC trend is not seen for moderately high power flat spectrum radio quasars with strong external photon fields. Coupled with the evidence that jet power is linked to the jet speed (Kharb et al. 2010), this finding suggests that external photon fields become the dominant source of seed photons in the jet comoving frame only for the faster and therefore more powerful jets.
description: Accepted for Publication in ApJ Letters, 5 pages, 4 figures
Wideband laser locking to an atomic reference with modulation transfer spectroscopy
Creators: name: Negnevitsky, Vlad
name: Turner, Lincoln D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate that conventional modulated spectroscopy apparatus, used for laser frequency stabilization in many atomic physics laboratories, can be enhanced to provide a wideband lock delivering deep suppression of frequency noise across the acoustic range. Using an acousto-optic modulator driven with an agile oscillator, we show that wideband frequency modulation of the pump laser in modulation transfer spectroscopy produces the unique single lock-point spectrum previously demonstrated with electro-optic phase modulation. We achieve a laser lock with 100 kHz feedback bandwidth, limited by our laser control electronics. This bandwidth is sufficient to reduce frequency noise by 30 dB across the acoustic range and narrows the imputed linewidth by a factor of five.
description: 11 pages, 3 figures, 1 table; v2: additional laser frequency noise data demonstrating greater linewidth reduction, many textual improvements, accepted for publication in Optics Expess
The Heterogeneous Course of Depressive Symptoms for the Dementia Caregiver
Creators: name: Ornstein, Katherine
name: Gaugler, Joseph E.
name: Zahodne, Laura B.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2014
Subjects: Neurology
Caregivers--Mental health
Depression, Mental
Dementia--Patients--Care

description: Caregiving may be burdensome to caregivers, negatively affecting health and impacting decisions to institutionalize patients. It is unclear how caregiver depression changes over longer periods or whether heterogeneous trajectories for caregivers are apparent. The goals of this article are to characterize the course of depressive symptoms among caregivers over time and to examine the impact of baseline patient and caregiver characteristics on these trajectories. Patients with dementia and their caregivers were followed every 6 months for up to 6 years or until death (n = 133). Growth mixture modeling identified trajectories of caregiver depression over time. Most caregivers had stable trajectories of symptoms, with a smaller subset showing evidence of wear-and-tear. Patient clinical characteristics had no impact on symptom course for caregivers. Future work should utilize a longitudinal perspective and consider that there may be heterogeneous trajectories for caregivers. Those caregivers who follow a wear-and-tear trajectory may require targeted interventions to improve outcomes.
The Indirect Effect of Age Group on Switch Costs Via Gray Matter Volume and Task-Related Brain Activity
Creators: name: Steffener, Jason
name: Gazes, Yunglin
name: Habeck, Christian G.
name: Stern, Yaakov
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Neurology
subject: Aging
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Cognition

description: Healthy aging simultaneously affects brain structure, brain function, and cognition. These effects are often investigated in isolation ignoring any relationships between them. It is plausible that age related declines in cognitive performance are the result of age-related structural and functional changes. This straightforward idea is tested in within a conceptual research model of cognitive aging. The current study tested whether age-related declines in task-performance were explained by age-related differences in brain structure and brain function using a task-switching paradigm in 175 participants. Sixty-three young and 112 old participants underwent MRI scanning of brain structure and brain activation. The experimental task was an executive context dual task with switch costs in response time as the behavioral measure. A serial mediation model was applied voxel-wise throughout the brain testing all pathways between age group, gray matter volume, brain activation and increased switch costs, worsening performance. There were widespread age group differences in gray matter volume and brain activation. Switch costs also significantly differed by age group. There were brain regions demonstrating significant indirect effects of age group on switch costs via the pathway through gray matter volume and brain activation. These were in the bilateral precuneus, bilateral parietal cortex, the left precentral gyrus, cerebellum, fusiform, and occipital cortices. There were also significant indirect effects via the brain activation pathway after controlling for gray matter volume. These effects were in the cerebellum, occipital cortex, left precentral gyrus, bilateral supramarginal, bilateral parietal, precuneus, middle cingulate extending to medial superior frontal gyri and the left middle frontal gyri. There were no significant effects through the gray matter volume alone pathway. These results demonstrate that a large proportion of the age group effect on switch costs can be attributed to individual differences in gray matter volume and brain activation. Therefore, age-related neural effects underlying cognitive control are a complex interaction between brain structure and function. Furthermore, the analyses demonstrate the feasibility of utilizing multiple neuroimaging modalities within a conceptual research model of cognitive aging.
Is inclusiveness in scholcom really beneficial for scholarship?
Creators: name: Funamori, Miho
Publisher: name: Zenodo
Year: 2021

description: Talking about diversity and inclusion, we often take for granted that it benefits everyone and that it is a goal to be pursued for the sake of equality and innovation. However, there are cases where inclusion, in fact, can harm local scholarship. For instance, being included in global scholcomm assumes working on research topics that are interesting and relevant to the global audience. This presumption can undermine local scholarship focused on domestic issues such as national history, literature, local economy, legal framework, and other social issues. Since many countries put it on their agenda to compete globally and achieve high world university rankings, their researchers are sometimes forced to change their research topics to be able to publish in global and high-impact journals if they want to sustain their academic career. Thus, it can be said that the pursuit towards inclusive scholcom largely distorts the scholarship landscape, ending up in research detached from local interests. But shouldn’t research also serve local interests, especially if it is publicly funded? This presentation is based on discussions and confrontations that occurred at forming the internationalization of the University of Tokyo.
Disorder instability of the magnon condensate in a frustrated spin ladder
Creators: name: Wulf, E.
name: Mühlbauer, S.
name: Yankova, T.
name: Zheludev, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The effect of disorder is studied on the field-induced quantum phase transition in the frustrated spin-ladder compound H8C4SO2Cu2(Cl[1-x]Brx)4 using bulk magnetic and thermodynamic measurements. The parent material (x=0) is a quantum spin liquid, which in applied fields is known to form a magnon condensate with long-range helimagnetic order. We show that bond randomness introduced by a chemical substitution on the non-magnetic halogene site destroys this phase transition at very low concentrations, already for x=0.01. The extreme fragility of the magnon condensate is attributed to random frustration in the incommensurate state.