cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modified Friedmann Equations in R$^{-1}$-Modified Gravity
Creators: name: Meng, Xinhe
name: Wang, Peng
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, corrections to Einstein-Hilbert action that become important at small curvature are proposed. We discuss the first order and second order approximations to the field equations derived by the Palatini variational principle. We work out the first and second order Modified Friedmann equations and present the upper redshift bounds when these approximations are valid. We show that the second order effects can be neglected on the cosmological predictions involving only the Hubble parameter itself, e.g. the various cosmological distances, but the second order effects can not be neglected in the predictions involving the derivatives of the Hubble parameter. Furthermore, the Modified Friedmann equations fit the SN Ia data at an acceptable level.
description: 15 pages, 6 figures, v2: discussion added; v3: minor changes, accepted by Class. and Quan. Grav
Otwieranie danych badawczych jako część planu zarządzania danymi
Creators: name: Wnuk, Magdalena
Publisher: name: Zenodo
Year: 2024
Subjects: data management
open data
open data repositories
open data policies

description: Prezentacja omawia:

Plan Zarządzania Danymi a otwarte dane

Polityka NCN

Dobre praktyki udostępniania danych badawczych

Wygłoszona na Seminarium Ośrodka Badań nad Migracjami UW 12-13 września 2024 r.

Dostępna na licencji CC BY 4.0.
Intra-community variation in cooking patterns and nutritional implications among the Tikar of northwest Cameroon
Creators: name: Ford, Iris Carter
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4401
subject: Anthropology
subject: FOS: Sociology

description: Relatively little is known about the critical relationships between nutrition and culture in Africa, where malnutrition has reached staggering proportions. Poverty plays a big part; however, not all poor people suffer from nutritional deficiencies. In an effort to understand how poverty leads to malnutrition in specific cultural settings and how in the face of poverty adequate nutrition is achieved in other settings, this research focuses on the role of women as actors in the nutritional system. The research objectives were: to determine (1) how women's food processing and preparation practices vary in a semi-subsistence agricultural village and (2) if this variance affects nutritional status. To meet these objectives, the nature and extent of intra-community variation in cooking patterns were determined; nutritional status at the household level was assessed; and relationships between cooking patterns and nutrition were ascertained. Methods included survey instruments to gather data on demographics, food availability and use, and food preparation strategies. In addition the twenty-four-hour recall method was used to document meal variety during both the wet and dry seasons, and anthropometry was conducted to determine the nutritional status of household members. Finally, participant observation and key-informant interviewing were used to determine the ethnographic context of cooking and to check the accuracy of survey data. Data analysis revealed that although there were differences in cooking patterns among village cooks, these differences were small and in almost half of the households where anthropometry was conducted at least one person showed signs of poor nutrition. It was found that differences in cooking patterns, in general, do not significantly contribute to malnutrition. Rather, poor nutritional status is likely to occur if cooks have more than one child in the household under the age of five (child-dependency ratio); if cash is not available or simply not expended on beef during the wet season (available cash and/or consumer spending patterns); and if children under the age of five years do not receive an equitable share of available household foods (child-family deficit). In conclusion, these factors--not cooking patterns--contribute to malnutrition in this setting.
Intra-community variation in cooking patterns and nutritional implications among the Tikar of northwest Cameroon
Creators: name: Ford, Iris Carter
Publisher: name: American University
Year: 2023

description: Relatively little is known about the critical relationships between nutrition and culture in Africa, where malnutrition has reached staggering proportions. Poverty plays a big part; however, not all poor people suffer from nutritional deficiencies. In an effort to understand how poverty leads to malnutrition in specific cultural settings and how in the face of poverty adequate nutrition is achieved in other settings, this research focuses on the role of women as actors in the nutritional system. The research objectives were: to determine (1) how women's food processing and preparation practices vary in a semi-subsistence agricultural village and (2) if this variance affects nutritional status. To meet these objectives, the nature and extent of intra-community variation in cooking patterns were determined; nutritional status at the household level was assessed; and relationships between cooking patterns and nutrition were ascertained. Methods included survey instruments to gather data on demographics, food availability and use, and food preparation strategies. In addition the twenty-four-hour recall method was used to document meal variety during both the wet and dry seasons, and anthropometry was conducted to determine the nutritional status of household members. Finally, participant observation and key-informant interviewing were used to determine the ethnographic context of cooking and to check the accuracy of survey data. Data analysis revealed that although there were differences in cooking patterns among village cooks, these differences were small and in almost half of the households where anthropometry was conducted at least one person showed signs of poor nutrition. It was found that differences in cooking patterns, in general, do not significantly contribute to malnutrition. Rather, poor nutritional status is likely to occur if cooks have more than one child in the household under the age of five (child-dependency ratio); if cash is not available or simply not expended on beef during the wet season (available cash and/or consumer spending patterns); and if children under the age of five years do not receive an equitable share of available household foods (child-family deficit). In conclusion, these factors--not cooking patterns--contribute to malnutrition in this setting.
Moronobea candida Ducke 1930
Creators: name: Leal, Eduardo Da Silva
name: Costa, Denise Pinheiro Da
name: Forzza, Rafaela Campostrini
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Clusiaceae
Moronobea
Moronobea candida

description: Moronobea candida Ducke (1930: 73) (Clusiaceae).
Lectotype (designated here):—BRAZIL. Amazonas: Lago Massauary, Rio Curneá (Maués), Rio Curuça, 4 June 1927, A. Ducke HJBR 21276 (RB, duplicates: K, NY, S; photo F). Syntype: A. Ducke HJBR 21277 (RB).
description: Published as part of Leal, Eduardo Da Silva, Costa, Denise Pinheiro Da & Forzza, Rafaela Campostrini, 2010, Lectotypification of the taxa of Adolpho Ducke from the Brazilian Amazon, pp. 49-55 in Phytotaxa 13 on page 52, DOI: 10.11646/phytotaxa.13.1.4, http://zenodo.org/record/4778674
The Support Ecosystem for Regional Food Network Entrepreneurship
Creators: name: Lyons, Thomas S.
name: Lee, Michael
name: Lyons, Thomas S.
name: Lee, Michael
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics
subject: Agriculture
subject: Agricultural Markets and Marketing
subject: Food Networks
subject: Food Policy
subject: Entrepreneurs

description: This article examines the support ecosystem for entrepreneurs in regional food networks. It systematizes these support activities by categorizing them by geography and services offered. Recommendations are then offered including a system matrix that network coordinators may use to map, manage, and direct support activities.
Additional file 2 of Membrane and synaptic defects leading to neurodegeneration in Adar mutant Drosophila are rescued by increased autophagy
Creators: name: Anzer Khan
name: Paro, Simona
name: McGurk, Leeanne
name: Nagraj Sambrani
name: Hogg, Marion C.
name: Brindle, James
name: Pennetta, Giuseppa
name: Keegan, Liam P.
name: O’Connell, Mary A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Figure S2.Adar5G1 neurodegeneration at 30 days. Images of 6 micron thick haematoxylin and eosin stained sections through mushroom body calyces (left panels, (63X)) and retinas (right panels, 40X) of 30-day Adar5G1.
Learning within implementing development assistance organizations: A comparative analysis of five tree-planting programs in the Nyanza Province of Kenya
Creators: name: Hoagland, Sara Hodges
Publisher: name: American University
Year: 2023

description: Four decades of experience in development assistance led many scholars to conclude that assistance efforts were failing, in part, because implementing organizations too often merely mechanically carry out rigid project blueprints. Much of the information that is necessary to a successful assistance effort cannot be known at the outset. Organizations therefore must be able to learn during implementation. They must be able to identify and respond to social, political and economic obstacles to their efforts; to experiment with their technological interventions; and to practice how best to nurture local participation. While advocates of a "learning process approach" had made it clear that creating organizations with a capacity to learn was important, no one had undertaken an empirical study of how development assistance organizations learn in practice. This study is an attempt to begin such an investigation. Five tree-planting programs in the Nyanza Province of Kenya were analyzed to determine how these organizations learned, what they learned, and what factors interfered with the learning process. This investigation reveals that while learning is not a panacea for successful development, it is vital to success; that it is possible to create organizations with the capacity to learn and develop project plans that allow the flexibility that learning requires. This research also provides additional insights into the problems of assuring effective participation in development programs; and finally outlines an agenda for future research into learning at other organizational levels of the development assistance effort, as it is argued the real breakdown in the learning process is not with the implementing organization itself.
Liberating the Inflaton from Primordial Spectrum Constraints
Creators: name: Armendariz-Picon, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I discuss a mechanism that renders the spectral index of the primordial spectrum and the inflationary stage independent of each other. If a scalar field acquires an appropriate time-dependent mass, it is possible to generate an adiabatic, Gaussian scale invariant spectrum of density perturbations during any stage of inflation. As an illustration, I present a simple model where the time-dependent mass arises from the coupling of the inflaton to a second scalar. The mechanism I propose might help to implement a successful inflationary scenario in particle physics theories that do not yield slow-roll potentials.
description: 7 two-column pages, 1 figure. Uses RevTeX4
Additional file 5 of Fast and optimal algorithm for case-control matching using registry data: application on the antibiotics use of colorectal cancer patients
Creators: name: Mamouris, Pavlos
name: Nassiri, Vahid
name: Molenberghs, Geert
name: Van Den Akker, Marjan
name: Van Der Meer, Joep
name: Vaes, Bert
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 5. ORs and CIs for a factorial combination of variables using different control sampling. 72 Scenarios displaying the ORs and the corresponding CIs for a factorial combination of variables using with and without replacement of controls.
Farm Incubators - Creating Entrepreneurial Relationships to Support Prosperous Food Networks
Creators: name: Liang, Kathleen
name: Liang, Kathleen
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Food networks
subject: Entrepreneurship
subject: Incubator farms
subject: Public policy
subject: Relationship

description: Farm incubators are a growing segment within food networks. They provide needed technical support to beginning farmers and ranchers. Although many farm incubators have been funded by government agencies, local and private organizations have opportunities to fulfill the various needs of new farm entrepreneurs, including entrepreneurial and networking support.
Learning within implementing development assistance organizations: A comparative analysis of five tree-planting programs in the Nyanza Province of Kenya
Creators: name: Hoagland, Sara Hodges
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: Four decades of experience in development assistance led many scholars to conclude that assistance efforts were failing, in part, because implementing organizations too often merely mechanically carry out rigid project blueprints. Much of the information that is necessary to a successful assistance effort cannot be known at the outset. Organizations therefore must be able to learn during implementation. They must be able to identify and respond to social, political and economic obstacles to their efforts; to experiment with their technological interventions; and to practice how best to nurture local participation. While advocates of a "learning process approach" had made it clear that creating organizations with a capacity to learn was important, no one had undertaken an empirical study of how development assistance organizations learn in practice. This study is an attempt to begin such an investigation. Five tree-planting programs in the Nyanza Province of Kenya were analyzed to determine how these organizations learned, what they learned, and what factors interfered with the learning process. This investigation reveals that while learning is not a panacea for successful development, it is vital to success; that it is possible to create organizations with the capacity to learn and develop project plans that allow the flexibility that learning requires. This research also provides additional insights into the problems of assuring effective participation in development programs; and finally outlines an agenda for future research into learning at other organizational levels of the development assistance effort, as it is argued the real breakdown in the learning process is not with the implementing organization itself.
Duality for symmetric second rank tensors. II. The linearized gravitational field
Creators: name: Casini, H.
name: Montemayor, R.
name: Urrutia, Luis F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The construction of dual theories for linearized gravity in four dimensions is considered. Our approach is based on the parent Lagrangian method previously developed for the massive spin-two case, but now considered for the zero mass case. This leads to a dual theory described in terms of a rank two symmetric tensor, analogous to the usual gravitational field, and an auxiliary antisymmetric field. This theory has an enlarged gauge symmetry, but with an adequate partial gauge fixing it can be reduced to a gauge symmetry similar to the standard one of linearized gravitation. We present examples illustrating the general procedure and the physical interpretation of the dual fields. The zero mass case of the massive theory dual to the massive spin-two theory is also examined, but we show that it only contains a spin-zero excitation.
description: 20 pages, no figures
An ALMA Survey of H$_2$CO in Protoplanetary Disks
Creators: name: Pegues, Jamila
name: Öberg, Karin I.
name: Bergner, Jennifer B.
name: Loomis, Ryan A.
name: Qi, Chunhua
name: Gal, Romane Le
name: Cleeves, L. Ilsedore
name: Guzmán, Viviana V.
name: Huang, Jane
name: Jørgensen, Jes K.
name: Andrews, Sean M.
name: Blake, Geoffrey A.
name: Carpenter, John M.
name: Schwarz, Kamber R.
name: Williams, Jonathan P.
name: Wilner, David J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: H$_2$CO is one of the most abundant organic molecules in protoplanetary disks and can serve as a precursor to more complex organic chemistry. We present an ALMA survey of H$_2$CO towards 15 disks covering a range of stellar spectral types, stellar ages, and dust continuum morphologies. H$_2$CO is detected towards 13 disks and tentatively detected towards a 14th. We find both centrally-peaked and centrally-depressed emission morphologies, and half of the disks show ring-like structures at or beyond expected CO snowline locations. Together these morphologies suggest that H$_2$CO in disks is commonly produced through both gas-phase and CO-ice-regulated grain-surface chemistry. We extract disk-averaged and azimuthally-averaged H$_2$CO excitation temperatures and column densities for four disks with multiple H$_2$CO line detections. The temperatures are between 20-50K, with the exception of colder temperatures in the DM Tau disk. These temperatures suggest that H$_2$CO emission in disks is generally emerging from the warm molecular layer, with some contributions from the colder midplane. Applying the same H$_2$CO excitation temperatures to all disks in the survey, we find that H$_2$CO column densities span almost three orders of magnitude ($\sim 5 \times 10^{11} - 5 \times 10^{14} \mathrm{cm}^{-2}$). The column densities appear uncorrelated with disk size and stellar age, but Herbig Ae disks may have less H$_2$CO compared to T Tauri disks, possibly because of less CO freeze-out. More H$_2$CO observations towards Herbig Ae disks are needed to confirm this tentative trend, and to better constrain under which disk conditions H$_2$CO and other oxygen-bearing organics efficiently form during planet formation.
description: 20 pages, 14 figures, 3 figure sets, 9 tables. Published in ApJ (February 2020)
Two novel enzyme-linked immunosorbent assays and NMR studies of the immunodominant repeat unit of the circumsporozoite protein of the malaria parasite Plasmodium falciparum
Creators: name: Peters, Laureen Valda
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 3101
subject: Biochemistry and cell biology

description: A novel two-site enzyme-linked immunosorbent assay (ELISA) which utilizes a murine monoclonal antibody (MAb) antigen (Ag) capture system and does not require purified enzyme-linked MAb in the detector system has been developed. This assay may be applied to the detection of malarial sporozoites using an MAb directed against the circumsporozoite (CS) protein of Plasmodium falciparum (MAbpf). Antigen captured by MAbpf bound to the wells of a polystyrene microtiter plate may be detected spectrophotometrically using a stable pre-formed complex between purified or crude species-specific MAbpf and affinity purified goat anti-mouse immunoglobulin G conjugated to horseradish peroxidase (GAMIgG.HRP). Bound antigen is quantitated based on a standard curve of purified protein generated per assay. A mass ratio of 1:2 for MAbpf: GAMIgG.HRP was found to maximize the signal-to-noise ratio. The limit of detection for this assay is 100 sporozoites. Another two-site antigen capture ELISA has been developed. This spectophotometric assay provides a quantitative measure of the murine monoclonal antibody concentration of a specific subclass contained in cell culture supernates, based on a standard curve of purified antibody generated per assay. The assay utilizes heterogeneous goat anti-mouse immunoglobulin G (GAMIgG) as the coating antibody and GAMIgG.HRP as the detector antibody. A sensitivity as low as 2 ng of heterogeneous mouse immunoglobulin (hMIgG) was achieved with this assay. One dimensional NMR spectroscopy was utilized in an examination of the solution-state secondary structure of the repeating unit, Asn-Pro-Asn-Ala, of the immunodominant region of the P. falciparum circumsporozoite protein. This study was initiated in order to experimentally test the theoretical prediction of a type I $\beta$-turn structure for the tetrapeptide, due mainly to the presence of $\beta$-turn inducing residues, asparagine and proline, at positions one, two, and three. The N-acetylated tetrapeptide amide, N-Acetyl-Asn-Pro-Asn-Ala-NH$\sb2$, was synthesized by the solid phase technique and subsequently analyzed for secondary structure conformation in two aqueous solvent mixtures, water/deuterium oxide and water/deuterated trifluoroethanol. NMR data indicate that the predominant structure formed in solution for the N-acetylated tetrapeptide amide is a half-turn.
Two novel enzyme-linked immunosorbent assays and NMR studies of the immunodominant repeat unit of the circumsporozoite protein of the malaria parasite Plasmodium falciparum
Creators: name: Peters, Laureen Valda
Publisher: name: American University
Year: 2023

description: A novel two-site enzyme-linked immunosorbent assay (ELISA) which utilizes a murine monoclonal antibody (MAb) antigen (Ag) capture system and does not require purified enzyme-linked MAb in the detector system has been developed. This assay may be applied to the detection of malarial sporozoites using an MAb directed against the circumsporozoite (CS) protein of Plasmodium falciparum (MAbpf). Antigen captured by MAbpf bound to the wells of a polystyrene microtiter plate may be detected spectrophotometrically using a stable pre-formed complex between purified or crude species-specific MAbpf and affinity purified goat anti-mouse immunoglobulin G conjugated to horseradish peroxidase (GAMIgG.HRP). Bound antigen is quantitated based on a standard curve of purified protein generated per assay. A mass ratio of 1:2 for MAbpf: GAMIgG.HRP was found to maximize the signal-to-noise ratio. The limit of detection for this assay is 100 sporozoites. Another two-site antigen capture ELISA has been developed. This spectophotometric assay provides a quantitative measure of the murine monoclonal antibody concentration of a specific subclass contained in cell culture supernates, based on a standard curve of purified antibody generated per assay. The assay utilizes heterogeneous goat anti-mouse immunoglobulin G (GAMIgG) as the coating antibody and GAMIgG.HRP as the detector antibody. A sensitivity as low as 2 ng of heterogeneous mouse immunoglobulin (hMIgG) was achieved with this assay. One dimensional NMR spectroscopy was utilized in an examination of the solution-state secondary structure of the repeating unit, Asn-Pro-Asn-Ala, of the immunodominant region of the P. falciparum circumsporozoite protein. This study was initiated in order to experimentally test the theoretical prediction of a type I $\beta$-turn structure for the tetrapeptide, due mainly to the presence of $\beta$-turn inducing residues, asparagine and proline, at positions one, two, and three. The N-acetylated tetrapeptide amide, N-Acetyl-Asn-Pro-Asn-Ala-NH$\sb2$, was synthesized by the solid phase technique and subsequently analyzed for secondary structure conformation in two aqueous solvent mixtures, water/deuterium oxide and water/deuterated trifluoroethanol. NMR data indicate that the predominant structure formed in solution for the N-acetylated tetrapeptide amide is a half-turn.
Overlapping generations models of monetary economies: Variations on a theme
Creators: name: Quinn, Jarus Kevin
Publisher: name: American University
Year: 2023

description: It is contended in this thesis that close on the heels of the New Classical Revolution in macroeconomic theory, aided by tools fashioned by the revolutionaries, has come a Keynesian Restoration, under the unlikely auspices of Samuelson's Overlapping Generations Model (OLG). Despite an unconcern with effective demand problems--markets clear, in OLG models, just as in New Classical models--OLG provides a theoretical justification for an activist, fiscalist government policy directed at correcting the inter-temporal misallocation which typically obtains under laissez-faire in an OLG economy. The Keynesian thematic in OLG is argued for in detail. OLG entails: a long-run role for Liquidity Preference in the determination of real interest rates; a 'reverse Treasury view' on the relative merits of fiscal vs. monetary policy; an activist imperative stemming from the multiple equilibria, not all desirable, that an OLG economy will exhibit; and an analogue, in utility terms, for the Keynesian concept of an unemployment equilibrium. It is argued that the capital-theoretic implications of OLG ought to be seen as a broadening and deepening of Phelps' Golden Rule results. They are given depth by being embedded in a general equilibrium model where agents optimize. Breadth comes through the extension of the presumption in favor of intervention to under-capitalized economies, where the laissez-faire real rate of return exceeds the growth rate. It is contended that though such economies (called 'classical') are Pareto-efficient, they may aptly be characterized as tragic: Intervention can vastly improve matters at the cost of arbitrarily small damage to the initial old. These interesting welfare implications of intervention in a classical OLG economy are displayed in a model where fiat money is introduced in the form of nominal loans by the government. Such a monetized classical economy performs very differently from the monetized Samuelson economies which are standard in the literature. A spatial OLG economy is constructed and examined for the analogues to the inefficient non-stationary paths which are found in the standard temporal model. Finally, it is shown that OLG is capable of shedding light on older issues in monetary thought. Marx's work on commodity money and fetishism, as well as Mill's qualified defense of the Real Bills doctrine, are analyzed using OLG.
Recent Enhancements to the MARS15 Code
Creators: name: Mokhov, N. V.
name: Gudima, K. K.
name: James, C. C.
name: Kostin, M. A.
name: Mashnik, S. G.
name: Ng, E.
name: Ostiguy, J. -F.
name: Rakhno, I. L.
name: Sierk, A. J.
name: Striganov, S. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Accelerator Physics (physics.acc-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The MARS code is under continuous development and has recently undergone substantial improvements that further increase its reliability and predictive power in numerous shielding, accelerator, detector and space applications. The major developments and new features of the MARS15 (2004) version described in this paper concern an extended list of elementary particles and arbitrary heavy ions and their interaction cross-sections, inclusive and exclusive nuclear event generators, module for modelling particle electromagnetic interactions, enhanced geometry and histograming options, improved MAD-MARS Beam Line Builder, enhanced Graphical-User Interface, and an MPI-based parallelization of the code.
description: 6 pages, 5 figures, 2 tables, only pdf file, presented at the ICRS-10/RPS2004 International Conference 21st Century in Radiation Protection and Shielding, Funchal, Madeira, Portugal, May 9-14, 2004
Overlapping generations models of monetary economies: Variations on a theme
Creators: name: Quinn, Jarus Kevin
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 38
subject: Economics
classificationCode: 3803
subject: Economic theory

description: It is contended in this thesis that close on the heels of the New Classical Revolution in macroeconomic theory, aided by tools fashioned by the revolutionaries, has come a Keynesian Restoration, under the unlikely auspices of Samuelson's Overlapping Generations Model (OLG). Despite an unconcern with effective demand problems--markets clear, in OLG models, just as in New Classical models--OLG provides a theoretical justification for an activist, fiscalist government policy directed at correcting the inter-temporal misallocation which typically obtains under laissez-faire in an OLG economy. The Keynesian thematic in OLG is argued for in detail. OLG entails: a long-run role for Liquidity Preference in the determination of real interest rates; a 'reverse Treasury view' on the relative merits of fiscal vs. monetary policy; an activist imperative stemming from the multiple equilibria, not all desirable, that an OLG economy will exhibit; and an analogue, in utility terms, for the Keynesian concept of an unemployment equilibrium. It is argued that the capital-theoretic implications of OLG ought to be seen as a broadening and deepening of Phelps' Golden Rule results. They are given depth by being embedded in a general equilibrium model where agents optimize. Breadth comes through the extension of the presumption in favor of intervention to under-capitalized economies, where the laissez-faire real rate of return exceeds the growth rate. It is contended that though such economies (called 'classical') are Pareto-efficient, they may aptly be characterized as tragic: Intervention can vastly improve matters at the cost of arbitrarily small damage to the initial old. These interesting welfare implications of intervention in a classical OLG economy are displayed in a model where fiat money is introduced in the form of nominal loans by the government. Such a monetized classical economy performs very differently from the monetized Samuelson economies which are standard in the literature. A spatial OLG economy is constructed and examined for the analogues to the inefficient non-stationary paths which are found in the standard temporal model. Finally, it is shown that OLG is capable of shedding light on older issues in monetary thought. Marx's work on commodity money and fetishism, as well as Mill's qualified defense of the Real Bills doctrine, are analyzed using OLG.
Dynamic Point Cloud Denoising via Manifold-to-Manifold Distance
Creators: name: Hu, Wei
name: Hu, Qianjiang
name: Wang, Zehua
name: Gao, Xiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Multimedia (cs.MM)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: 3D dynamic point clouds provide a natural discrete representation of real-world objects or scenes in motion, with a wide range of applications in immersive telepresence, autonomous driving, surveillance, \etc. Nevertheless, dynamic point clouds are often perturbed by noise due to hardware, software or other causes. While a plethora of methods have been proposed for static point cloud denoising, few efforts are made for the denoising of dynamic point clouds, which is quite challenging due to the irregular sampling patterns both spatially and temporally. In this paper, we represent dynamic point clouds naturally on spatial-temporal graphs, and exploit the temporal consistency with respect to the underlying surface (manifold). In particular, we define a manifold-to-manifold distance and its discrete counterpart on graphs to measure the variation-based intrinsic distance between surface patches in the temporal domain, provided that graph operators are discrete counterparts of functionals on Riemannian manifolds. Then, we construct the spatial-temporal graph connectivity between corresponding surface patches based on the temporal distance and between points in adjacent patches in the spatial domain. Leveraging the initial graph representation, we formulate dynamic point cloud denoising as the joint optimization of the desired point cloud and underlying graph representation, regularized by both spatial smoothness and temporal consistency. We reformulate the optimization and present an efficient algorithm. Experimental results show that the proposed method significantly outperforms independent denoising of each frame from state-of-the-art static point cloud denoising approaches, on both Gaussian noise and simulated LiDAR noise.
Additional file 1 of Microfluidic guillotine reveals multiple timescales and mechanical modes of wound response in Stentor coeruleus
Creators: name: Zhang, Kevin S.
name: Blauch, Lucas R.
name: Huang, Wesley
name: Marshall, Wallace F.
name: Tang, Sindy K. Y.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Additional file 1: Figure S1. Additional images of cells post wounding. Figure S2. Measured mean fluorescence of individual cells using the wound repair assay. Figure S3. Details of cell behavior quantification. Figure S4. Effect of a liquid-liquid interface to prevent cytoplasm adhesion. Figure S5. Cell size variation. Figure S6. Optimization of Sytox Green staining. Note S1. Stentor feeding protocol, optimized for wound repair assay. Note S2. Calculation of wound repair time. Note S3. Wound repair assay optimization. Table S1. Comparison of different dyes for staining wounded Stentor cells.
The Social Architecture of Capitalism
Creators: name: Wright, Ian
Publisher: name: arXiv
Year: 2004
Subjects: subject: Condensed Matter (cond-mat)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: A dynamic model of the social relations between workers and capitalists is introduced. The model is deduced from the assumption that the law of value is an organising principle of modern economies. The model self-organises into a dynamic equilibrium with statistical properties that are in close qualitative and in many cases quantitative agreement with a broad range of known empirical distributions of developed capitalism, including the power-law distribution of firm size, the Laplace distribution of firm and GDP growth, the lognormal distribution of firm demises, the exponential distribution of the duration of recessions, the lognormal-Pareto distribution of income, and the gamma-like distribution of the rate-of-profit of firms. Normally these distributions are studied in isolation, but this model unifies and connects them within a single causal framework. In addition, the model generates business cycle phenomena, including fluctuating wage and profit shares in national income about values consistent with empirical studies. A testable consequence of the model is a conjecture that the rate-of-profit distribution is consistent with a parameter-mix of a ratio of normal variates with means and variances that depend on a firm size parameter that is distributed according to a power-law.
description: 36 pages, 12 figures
Quantization of the Geodesic flow on Quaternion Projective Spaces
Creators: name: Furutani, Kenro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D50;32Q15;53D25

description: We study a problem of the geometric quantization for the quaternion projective space. First we explain a Kaehler structure on the punctured cotangent bundle of the quaternion projective space, whose Kaehler form coincides with the natural symplectic form on the cotangent bundle and show that the canonical line bundle of this complex structure is holomorphically trivial by explicitly constructing a nowhere vanishing holomorphic global section. Then we construct a Hilbert space consisting of a certain class of holomorphic functions on the punctured cotangent bundle by the method of pairing polarization and incidentally we construct an operator from this Hilbert space to the $L_2$ space of the quaternion projective space. Also we construct a similar operator between these two Hilbert spaces through the Hopf fiberation. We prove that these operators quantize the geodesic flow of the quaternion projective space to the one parameter group of the unitary Fourier integral operators generated by the square root of the Laplacian plus suitable constant. Finally we remark that the Hilbert space above has the reproducing kernel.
description: no figures
The impact of the international transfer of technology on the development of indigenous technology in Saudi Arabia
Creators: name: Chlach, Talal Ramadan
Publisher: name: American University
Year: 2023

description: This dissertation explores the impact of the international transfer of technology on the development of indigenous technology in Saudi Arabia since 1970. The essential question investigated is whether a transfer of technology had occurred. If such a transfer had occurred: (1) To what extent did it occur and what sector or sectors of the Saudi economy did it affect? (2) Did this transfer induce other forms of indigenous technologies? (3) How much impact, if any, did the transferred technology have on the development of indigenous human resources? (4) What was the impact of this transfer, if any, on the social and political institutions in Saudi Arabia?; The general conclusion of this study is that a broad and systematic transfer of technology had not occurred in accordance with the definition offered in this research. After reaching this conclusion, the study then attempted to determine why this transfer had not happened. Two case studies are utilized to further investigate this problem. Finally, the study seeks to identify the conditions necessary for a transfer of technology to take place. The study examines two major and separate hypotheses: (1) international transfer of technology will result in the development of indigenous technology in developing countries; and (2) the development of an appropriate indigenous technology is dependent upon the development of indigenous human resources. The study uses both primary and secondary sources. Primary data were collected through open-ended interviews with officials from the government and the private sectors, and survey questionnaires. Secondary sources are the various government and nongovernment publications, development plans, development policies, annual statistics, and other relevant publications.
Development of an evaluation tool for community health centers: a necessity in a constantly changing healthcare field
Creators: name: Fata, Aimee Louise
Publisher: name: DigitalHub. Galter Health Sciences Library & Learning Center
Year: 2018
Subjects: subject: public health
subject: Alliance Chicago
subject: Community Health Centers
subject: Health Care Rationing
subject: Economics, Medical
subject: Medicaid
subject: Medically Uninsured
subject: Insurance Coverage
subject: Health Planning Organizations
subject: Chicago (Ill.)

description: A Northwestern University Capstone Project
Additional file 1 of Membrane and synaptic defects leading to neurodegeneration in Adar mutant Drosophila are rescued by increased autophagy
Creators: name: Anzer Khan
name: Paro, Simona
name: McGurk, Leeanne
name: Nagraj Sambrani
name: Hogg, Marion C.
name: Brindle, James
name: Pennetta, Giuseppa
name: Keegan, Liam P.
name: O’Connell, Mary A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Screen of DrosDel deletions on Chromosome 2 L for rescue of Adar5G1 viability. Ratio of Adar5G1 to FM7 Bar genotypes among male progeny in the presence of DrosDel deficiencies, or in their absence (w1118 cross at the bottom) (expressed as a percentage). Progeny are obtained by crossing Adar5G1/ FM7, Bar virgin females to males to w1118 males or males of DrosDel/SM5, Cy deficiency stocks.
The impact of the international transfer of technology on the development of indigenous technology in Saudi Arabia
Creators: name: Chlach, Talal Ramadan
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 44
subject: Human society
classificationCode: 4408
subject: Political science
subject: FOS: Political science

description: This dissertation explores the impact of the international transfer of technology on the development of indigenous technology in Saudi Arabia since 1970. The essential question investigated is whether a transfer of technology had occurred. If such a transfer had occurred: (1) To what extent did it occur and what sector or sectors of the Saudi economy did it affect? (2) Did this transfer induce other forms of indigenous technologies? (3) How much impact, if any, did the transferred technology have on the development of indigenous human resources? (4) What was the impact of this transfer, if any, on the social and political institutions in Saudi Arabia?; The general conclusion of this study is that a broad and systematic transfer of technology had not occurred in accordance with the definition offered in this research. After reaching this conclusion, the study then attempted to determine why this transfer had not happened. Two case studies are utilized to further investigate this problem. Finally, the study seeks to identify the conditions necessary for a transfer of technology to take place. The study examines two major and separate hypotheses: (1) international transfer of technology will result in the development of indigenous technology in developing countries; and (2) the development of an appropriate indigenous technology is dependent upon the development of indigenous human resources. The study uses both primary and secondary sources. Primary data were collected through open-ended interviews with officials from the government and the private sectors, and survey questionnaires. Secondary sources are the various government and nongovernment publications, development plans, development policies, annual statistics, and other relevant publications.
Finite-temperature transport in one-dimensional quantum lattice models
Creators: name: Bertini, B.
name: Heidrich-Meisner, F.
name: Karrasch, C.
name: Prosen, T.
name: Steinigeweg, R.
name: Znidaric, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The last decade has witnessed an impressive progress in the theoretical understanding of transport properties of clean, one-dimensional quantum lattice systems. Many physically relevant models in one dimension are Bethe-ansatz integrable, including the anisotropic spin-1/2 Heisenberg (also called spin-1/2 XXZ chain) and the Fermi-Hubbard model. Nevertheless, practical computations of, for instance, correlation functions and transport coefficients pose hard problems from both the conceptual and technical point of view. Only due to recent progress in the theory of integrable systems on the one hand and due to the development of numerical methods on the other hand has it become possible to compute their finite temperature and nonequilibrium transport properties quantitatively. Most importantly, due to the discovery of a novel class of quasilocal conserved quantities, there is now a qualitative understanding of the origin of ballistic finite-temperature transport, and even diffusive or super-diffusive subleading corrections, in integrable lattice models. We shall review the current understanding of transport in one-dimensional lattice models, in particular, in the paradigmatic example of the spin-1/2 XXZ and Fermi-Hubbard models, and we elaborate on state-of-the-art theoretical methods, including both analytical and computational approaches. Among other novel techniques, we discuss matrix-product-states based simulation methods, dynamical typicality, and, in particular, generalized hydrodynamics. We will discuss the close and fruitful connection between theoretical models and recent experiments, with examples from both the realm of quantum magnets and ultracold quantum gases in optical lattices.
description: Review article (78 pages, 34 figures). V3: Revised version, additional references
Parinari excelsa Sabine 1824
Creators: name: Leal, Eduardo Da Silva
name: Costa, Denise Pinheiro Da
name: Forzza, Rafaela Campostrini
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Chrysobalanaceae
Parinari
Parinari excelsa

description: Parinari laxiflora Ducke (1922: 44), as ‘ Parinarium laxiflorum ’
[= Parinari excelsa Sabine (1824: 451) (Chrysobalanaceae)].
Lectotype (designated here):—BRAZIL. Pará: Óbidos, mata de terras altas, 23 September 1910, A. Ducke 11051 (RB 2 sheets, duplicates: MG, US; photo F). Syntype: A. Ducke 15244 (RB).
description: Published as part of Leal, Eduardo Da Silva, Costa, Denise Pinheiro Da & Forzza, Rafaela Campostrini, 2010, Lectotypification of the taxa of Adolpho Ducke from the Brazilian Amazon, pp. 49-55 in Phytotaxa 13 on page 52, DOI: 10.11646/phytotaxa.13.1.4, http://zenodo.org/record/4778674