cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Life cycle assessment of Chemistry Building North Block
Creators: name: Weng, Minge
Publisher: name: The University of British Columbia
Year: 2015

description: Life Cycle Analysis (LCA) evaluates the environmental impacts of the inputs and outputs of a product system. 22 buildings on University of British Columbia Point Grey Campus were chosen to complete this study. The study is to peek into LCA by investigating the environmental impacts of buildings using current LCA methods. The works were executed as part of the study for CIVL 498. As the LCA project of this course has been ran for a few years, this study was based on the results of previous years of study. This year it mainly focused on evaluating the impacts of the selected buildings and improving quality of the data. Two main software tools are to be utilized to complete this LCA study; OnCenter’s OnScreen TakeOff (OST) and the Athena Sustainable Materials Institute’s Impact Estimator (IE) for buildings. OST performed the material take-off of the building then its output were input into Athena IE to analyze the impacts. Detailed assessment methods were described in section 6.0 and the results of this study are displaying under section 7.0. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Autonomy: Applications and Implications. Experimental Study of Georgia's Autonomous, Non-autonomous and De Facto Autonomous Regions
Creators: name: Mosashvili, Gia
Publisher: name: figshare
Year: 2020
Subjects: subject: 160607 International Relations
subject: FOS: Political science
subject: 160699 Political Science not elsewhere classified
subject: Ethnic Studies

description: this research will be published in a few days!
Poster : Role of Burnout between Workload, Work Stress, and Employee Performance: Mediation Model
Creators: name: Purwanti, Ika
name: Suyanto, Umar Yeni
name: Abadi, Muhammad Dzikri
name: Darianto
name: Dwi Liliana
Publisher: name: Zenodo
Year: 2021

description: This material presented in 3rd ICIGR 2021
Estimating Consumers' Willingness to Pay for Safety of Street Foods in South-west Nigeria
Creators: name: Akinbode, S. O.
name: Dipeolu, A. O.
name: Okojie, L. O.
name: Akinbode, S. O.
name: Dipeolu, A. O.
name: Okojie, L. O.
Publisher: name: Unknown
Year: 2012
Subjects: subject: Community/Rural/Urban Development
subject: Health Economics and Policy
subject: Street food
subject: Safety
subject: WTP
subject: Consumer

description: Street foods have the potential to improve both food security and nutrition but they have the possibility of causing food poisoning outbreaks because they are mostly produced in dirty environments along dusty roads and other sources of contamination. In order to reduce the incidence of food borne diseases there is need for improved safety practices especially by the street food vendors which may increase costs. Parts of these costs will be transferred to consumers in form of higher prices. There is therefore an urgent need to assess consumers’ Willingness to Pay (WTP) for safer street foods. Data were collected from 126 respondents who were selected from consumers patronizing street food stalls in Abeokuta, South-west Nigeria. The data were analyzed using descriptive statistics and the Logit regression model. WTP was estimated from the Dichotomous Choice Contingency Valuation Method (DCCVM). Average age of consumers was 35years with income of N29, 903.00. The Logit regression estimation showed that income and education have significant and positive effects on consumers’ WTP. Estimated WTP value of N12.70 per N100 worth of street food was obtained from the DCCVM. It is recommended that safer street stalls should be located in areas populated by high income and educated people due to their readiness to pay for the improved quality. Public enlightenments should also focus on food safety education in order to stimulate food safety awareness among consumers especially in areas populated by low income and lowly educated people.
Economics of Fresh Tomato Marketing in Kosofe Local Government Area of Lagos State, Nigeria
Creators: name: Obayelu, A. E.
name: Arowolo, A. O.
name: Ibrahim, S. B.
name: Croffie, A. Q.
name: Obayelu, A. E.
name: Arowolo, A. O.
name: Ibrahim, S. B.
name: Croffie, A. Q.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Production Economics
subject: Productivity Analysis
subject: Fresh tomato
subject: Marketing
subject: FOS: Economics and business
subject: Lagos
subject: Nigeria

description: The study was carried out to analyze the economics of fresh tomato marketing in Kosofe Local Government Area of Lagos State, Nigeria. The study was based on primary data using structured questionnaire. A total of 80 tomato marketers were selected from four major markets using simple random sampling technique. Descriptive statistics, gross margin analysis, marketing margin analysis and multiple regression analysis were used to analyze the data. The study revealed that female marketers dominated (73.7%) the markets. Most (56.2%) were within the age bracket of 31- 50years and 47.5% of them had no formal education. The cost and return analysis revealed that the variable costs constitute the total cost of marketing (100%) with cost of purchase (99.76%) constituting the highest. The cost of marketing was ₦48.57/kg and total revenue was ₦27, 374.16. A gross margin of N6, 976.12 and returns per naira invested of 1.34k indicates that fresh tomato marketing is profitable. The marketing margin on fresh tomato was 25.66%. Purchase price of tomato, transportation costs, marketing experience and level of education were significant determinants of the quantity of fresh tomatoes purchased by the marketers for sale. Problems associated with fresh tomato marketing included inadequate storage facilities (29%), high cost of transportation (23%) and lack of capital (20%). It is therefore recommended that means of transportation and storage facilities should be made available to reduce the marketing costs and facilitate the marketing of tomato. Marketers should be encouraged to join co-operative societies to help improve means of credit and as well acquire more formal education.
Magnetic Backgrounds and Noncommutative Field Theory
Creators: name: Szabo, Richard J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: This paper is a rudimentary introduction, geared at non-specialists, to how noncommutative field theories arise in physics and their applications to string theory, particle physics and condensed matter systems.
description: 26 pages, 3 figures, uses ws-ijmpa.cls; Invited review to be published in International Journal of Modern Physics A; v2: References added
Gender Analysis of Rice Production Efficiency in Osun State: Implication for the Transformation Agenda
Creators: name: Ayanwale, A. B.
name: Amusan, C. A.
name: Ayanwale, A. B.
name: Amusan, C. A.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Production Economics
subject: Productivity Analysis
subject: Rice production
subject: Gender
subject: Technical efficiency
subject: Stochastic production frontier

description: This study examined the gender characteristics in the efficiency of rice production in Osun state. Primary data were elicited from 100 rice farmers with the aid of structured pre-tested questionnaire and analysed using frequency counts, budgetary analysis and stochastic frontier production function. Findings showed that the majority (62%) of the farmer were males, below 50 years of age (52%) with only 6 years of formal education (58%) having farming as their primary occupation (65%) and cultivating up to 5 hectares of land (66%), while, only 42% of the female farmers were below 50 years of age. Most (71%) respondents had up to 6 years of formal education, cultivated up to 5 hectares (61%) of land, few (18%) chose farming as primary occupation. The budgetary analysis revealed that N2.18 profit accrued to every N1 invested in rice production. Hiring an additional female labour during planting improved total output by 7.1kg, while an extra male labour hired during land clearing, fertilizer application and harvest reduced output by 46.4kg, 35.5kg and 11.2kg respectively. A naira increase in the cost of fertilizer increases total output by 2.7kg. The study concluded that male farmers’ were more efficient than the female farmers. Farmers’ efficiency can be enhanced through mechanisation and fertilizer input supply; while provision of postharvest equipment will help women diversify into value addition.
Manipulating of magnetism in the topological semimetal EuCd2As2
Creators: name: Jo, Na Hyun
name: Kuthanazhi, Brinda
name: Wu, Yun
name: Timmons, Erik
name: Kim, Tae-Hoon
name: Zhou, Lin
name: Wang, Lin-Lin
name: Ueland, Benjamin G.
name: Palasyuk, Andriy
name: Ryan, Dominic H.
name: McQueeney, Robert J.
name: Lee, Kyungchan
name: Schrunk, Benjamin
name: Burkov, Anton A.
name: Prozorov, Ruslan
name: Bud'ko, Sergey L.
name: Kaminski, Adam
name: Canfield, Paul C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic Weyl semimetals are expected to have extraordinary physical properties such as a chiral anomaly and large anomalous Hall effects that may be useful for future, potential, spintronics applications. However, in most known host materials, multiple pairs of Weyl points prevent a clear manifestation of the intrinsic topological effects. Our recent density functional theory (DFT) calculations study suggest that EuCd$_{2}$As$_{2}$ can host Dirac fermions in an antiferromagnetically (AFM) ordered state or a single pair of Weyl fermions in a ferromagnetically (FM) ordered state. Unfortunately, previously synthesized crystals ordered antiferromagnetically with $T_{\textrm{N}}$\,$\simeq$\,9.5\,K. Here, we report the successful synthesis of single crystals of EuCd$_{2}$As$_{2}$ that order ferromagnetically (FM) or antiferromagnetically (AFM) depending on the level of band filling, thus allowing for the use of magnetism to tune the topological properties within the same host. We explored their physical properties via magnetization, electrical transport, heat capacity, and angle resolved photoemission spectroscopy (ARPES) measurements and conclude that EuCd$_{2}$As$_{2}$ is an excellent, tunable, system for exploring the interplay of magnetic ordering and topology.
Einstein-Podolsky-Rosen correlation in gravitational field
Creators: name: Terashima, Hiroaki
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For quantum communication in a gravitational field, the properties of the Einstein-Podolsky-Rosen (EPR) correlation are studied within the framework of general relativity. Acceleration and gravity are shown to deteriorate the perfect anti-correlation of an EPR pair of spins in the same direction, and apparently decrease the degree of the violation of Bell's inequality. To maintain the perfect EPR correlation and the maximal violation of Bell's inequality, observers must measure the spins in appropriately chosen different directions. Which directions are appropriate depends on the velocity of the particles, the curvature of the spacetime, and the positions of the observers. Near the event horizon of a black hole, the appropriate directions depend so sensitively on the positions of the observers that even a very small uncertainty in the identification of the observers' positions leads to a fatal error in quantum communication, unless the observers fall into the black hole together with the particles.
description: 22 pages, 3 figures, several minor revisions are made
title: Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐµÐºÑÐ¾ÑÐ° ÑÐ¾ÑÑÐ¸Ð¹ÑÐºÐ¾Ð¹ Ð½Ð°ÑÐºÐ¸
title: System research of the entrepreneurship sector of Russian science
Creators: name: ÐÐµÑÑÐ°ÑÐ°Ð±Ð¾Ð², ÐÑÐºÐ°Ð´Ð¸Ð¹
name: ÐÐ¸ÑÐ¸Ð»Ð»Ð¾Ð²Ð°, ÐÑÐ¸Ð½Ð°
name: ÐÐ°ÑÐ¸ÑÑÐ»Ð¸Ð½, ÐÐ¸ÑÐ°Ð¸Ð»
name: "Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· Ð² Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¸ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ð¸", Ð¼ÐµÐ¶Ð´ÑÐ½Ð°ÑÐ¾Ð´Ð½Ð°Ñ Ð½Ð°ÑÑÐ½Ð¾-Ð¿ÑÐ°ÐºÑÐ¸ÑÐµÑÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÑÐµÐ½ÑÐ¸Ñ (27; 2023; Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³)
Publisher: name: ÐÐÐÐÐ¢ÐÐ¥-ÐÐ ÐÐ¡Ð¡
Year: 2024
Subjects: Ð¡Ð¸ÑÑÐµÐ¼Ð½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÑÐºÐ¸Ð¹ ÑÐµÐºÑÐ¾Ñ Ð½Ð°ÑÐºÐ¸
Ð½Ð°ÑÑÐ½Ð°Ñ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ñ
Ð¸Ð½Ð´Ð¸ÐºÐ°ÑÐ¾ÑÑ Ð½Ð°ÑÐºÐ¸
Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐµÑÑÑÑÑ
ÑÐµÐ¹ÑÐ¸Ð½Ð³Ð¾Ð²ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·
business sector of science
scientific organization
science indicators
innovative resources
rating analysis

description: ÐÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð° Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ° (1990â2021) Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¸Ð½Ð½Ð¾Ð²Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¸Ð½Ð´Ð¸ÐºÐ°ÑÐ¾ÑÐ¾Ð² Ð´Ð»Ñ Ð³Ð¾ÑÑÐ´Ð°ÑÑÑÐ²ÐµÐ½Ð½Ð¾Ð³Ð¾, Ð²ÑÐ·Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐµÐºÑÐ¾ÑÐ¾Ð² Ð½Ð°ÑÑÐ½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° Ð Ð¾ÑÑÐ¸Ð¸. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð·Ð½Ð°ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸Ð½Ð¸Ð¼Ð°ÑÐµÐ»ÑÑÐºÐ¾Ð³Ð¾ ÑÐµÐºÑÐ¾ÑÐ° Ð² Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ ÑÐµÑÐµÐ½Ð¸ÑÑ (ÑÐµÐ»Ð¾Ð²ÐµÑÐµÑÐºÐ¸Ð¹ ÐºÐ°Ð¿Ð¸ÑÐ°Ð», ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐµÑÑÑÑÑ). Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¿ÑÐ¸Ð¼ÐµÑÐ° ÑÐµÐ¹ÑÐ¸Ð½Ð³Ð¾Ð²Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ Ð¸Ð½ÑÐµÐ³ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÐ¹ ÐºÑÐ¸ÑÐµÑÐ¸Ð¹ Ð¾ÑÐµÐ½ÐºÐ¸ ÐºÐ°Ð´ÑÐ¾Ð²ÑÑ Ð¸ ÑÐ¸Ð½Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐµÑÑÑÑÐ¾Ð² Ð²ÐµÐ´ÑÑÐ¸Ñ Ð¾ÑÑÐ°ÑÐ»ÐµÐ²ÑÑ Ð½Ð°ÑÑÐ½ÑÑ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸Ð¹ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ°.
description: The dynamics (1990â2021) of the main innovation indicators for the state, university and business sectors of the Russian scientific complex are analyzed. An analysis of the importance of the business sector in the main information sections (human capital, financial resources) was carried out. As an example of a rating analysis, an integrated criterion for assessing the human and financial resources of leading industry scientific
organizations of the chemical complex is proposed.
Review of Marketing Board Policy: Comparative Analysis of Cocoa Pricing Eras in Nigeria
Creators: name: Ayinde, O. E.
name: Adewumi, M O.
name: Nmadu, J. N.
name: Olatunji, G. B.
name: Egbugo, K.
name: Ayinde, O. E.
name: Adewumi, M O.
name: Nmadu, J. N.
name: Olatunji, G. B.
name: Egbugo, K.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Marketing Board
subject: Cocoa
subject: Price
subject: Co-integration Analysis

description: The study focuses on reviewing the marketing policies with the specific interest in comparing the price of cocoa during marketing board era with that of the post-marketing board era. The study objectives include examining the prevailing economic situations; comparing the producer and consumer prices during the two eras; and evaluate the effect of the two marketing board eras on cocoa production. Time series data for the period 1966 to 2009, were sourced from Cocoa Research Institute, Ibadan, FAOSTAT and Annual Bulletin of Statistics of the National Bureau of Statistics. Descriptive statistics, Trend analysis and Co-integration Analysis were used to analyse the data. The result revealed that that there is trend in the cocoa production during the marketing board era as compared to the post-marketing board era. This is attributed to the increase in the prices experienced in post marketing board era. The study also established that during the marketing board era, prices and marketing margins affected the production of cocoa. The marketing board era had positive impact on the cocoa production although the trend analysis revealed the post marketing era has higher production. Thus the study recommends that Government and cocoa farmers should learn from the price stabilization mechanism of marketing board era. The government should move away from direct involvement in running the economy such as the marketing of cocoa.
Hot gas in galaxy halos traced by coronal broad Lyman alpha absorbers
Creators: name: Richter, Philipp
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the possibility to systematically study the extended, hot gaseous halos of low-redshift galaxies with Coronal Broad Ly alpha Absorbers (CBLAs). These are weak, thermally broadenend HI absorption lines arising from the tiny fraction of neutral hydrogen that resides in the collisionally ionized, million-degree halo gas in these galaxies. Using a semi-analytic approach, we model the spatial density and temperature distribution of hot coronal gas to predict strength, spectral shape, and cross section of CBLAs as a function of galaxy-halo mass and line-of-sight impact parameter. For virial halo masses in the range log (M/M_sun)=10.6-12.6, the characteristic logarithmic CBLA HI column densities and Doppler parameters are log N(HI)=12.4-13.4 and b(HI)=70-200 km/s, indicating that CBLAs represent weak, shallow spectral features that are difficult to detect. Yet, the expected number density of CBLAs per unit redshift in the above given mass range is dN/dz(CBLA)~3, implying that CBLAs have a substantial absorption cross-section. We compare the model predictions with a combined set of ultraviolet (UV) absorption-line spectra from HST/COS and HST/STIS that trace the halos of four low-redshift galaxies. We demonstrate that CBLAs already might have been detected in these spectra, but the complex multi-component structure and the limited signal-to-noise ratio (S/N) complicate the interpretation of these CBLA candidate systems. Our study suggests that CBLAs represent a very interesting absorber class that potentially will allow us to further explore the hot coronae of galaxies with UV spectral data.
description: 17 pages, 10 figures; accepted for publication in ApJ
Economic Assessment of the Effect of the Nigerian Technology Incubation Programme on Agro-allied Small and Medium Scale Enterprises
Creators: name: Ayinde, I. A.
name: Kareem, R. O.
name: Lasisi, K.
name: Ayinde, I. A.
name: Kareem, R. O.
name: Lasisi, K.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Productivity Analysis
subject: Research and Development/Tech Change/Emerging Technologies
subject: Technology incubation centres
subject: Agro-allied
subject: Economic assessment

description: The focus of the study was to analyse the performance of Technology Incubation Centres (TIC) on the Agro-allied industry. Total enumeration technique was used to select forty entrepreneurs from the three existing TICs covered by the study. Survey method through administration of structured questionnaire was adopted by the study. The data collected include monthly turnover, net worth before joining the TIC and the net worth after. The data were analysed using descriptive statistics, student T-test and OLS regression analysis. The study revealed that the mean age of incubatees was 52 years. Most (85.0%) of them were males while all of them were educated. Also, 60.00% of the entrepreneurs were involved in agro-allied food processing while 22.5% and 17.50% produced consumer goods and simple manufacturing equipment, respectively. Regression results indicate that number of skilled labour (p<0.01) and educational background of incubatees (p<0.05) significantly influenced the net worth of the agro-allied SMEs in TIC. Major challenges of the respondents were funding, technical know-how and certification of their products. The study concluded that TIC is a worthwhile policy intervention for SMEs agro-allied business. The study recommended that incorporation of more educated entrepreneurs would improve agro-allied SMEs productivity among others, and stimulate the activities of TIC.
Efficiently Calibrating Cable-Driven Surgical Robots with RGBD Fiducial Sensing and Recurrent Neural Networks
Creators: name: Hwang, Minho
name: Thananjeyan, Brijen
name: Paradis, Samuel
name: Seita, Daniel
name: Ichnowski, Jeffrey
name: Fer, Danyal
name: Low, Thomas
name: Goldberg, Ken
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Automation of surgical subtasks using cable-driven robotic surgical assistants (RSAs) such as Intuitive Surgical's da Vinci Research Kit (dVRK) is challenging due to imprecision in control from cable-related effects such as cable stretching and hysteresis. We propose a novel approach to efficiently calibrate such robots by placing a 3D printed fiducial coordinate frames on the arm and end-effector that is tracked using RGBD sensing. To measure the coupling and history-dependent effects between joints, we analyze data from sampled trajectories and consider 13 approaches to modeling. These models include linear regression and LSTM recurrent neural networks, each with varying temporal window length to provide compensatory feedback. With the proposed method, data collection of 1800 samples takes 31 minutes and model training takes under 1 minute. Results on a test set of reference trajectories suggest that the trained model can reduce the mean tracking error of the physical robot from 2.96 mm to 0.65 mm. Results on the execution of open-loop trajectories of the FLS peg transfer surgeon training task suggest that the best model increases success rate from 39.4 % to 96.7 %, producing performance comparable to that of an expert surgical resident. Supplementary materials, including code and 3D-printable models, are available at https://sites.google.com/berkeley.edu/surgical-calibration
description: 8 pages, 11 figures, 3 tables
Determinants of Aggregate Agricultural Supply Response in Nigeria (1960-2010)
Creators: name: Kareem, R. O.
name: Ayinde, I. A.
name: Bakare, H. A.
name: Bashir, N. O.
name: Kareem, R. O.
name: Ayinde, I. A.
name: Bakare, H. A.
name: Bashir, N. O.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Agricultural supply response
subject: Unit root and co-integration test
subject: Nigeria

description: The study investigated the determinants of aggregate agricultural supply response in Nigeria for the period spanning 1960-2010. The data were sourced from Central Bank of Nigeria Statistical Bulletin. The objective of the study was to determine the macroeconomic policy mix contributing to the aggregate supply response or aggregate agricultural output of Nigeria. The objective was achieved using regression analysis. The variables were tested for unit root and co-integration tests to determine the stationarity and long run equilibrium relationship between variables respectively. The results found out that 98 percent of the variations in aggregate agricultural output were explained by explanatory variables [inflation (infl), Exchange rate (Exc), foreign direct investment (fdi), interest rate (int), agricultural guarantee credit scheme fund (agcsf), recurrent expenditure (rec) and capital expenditure (cap)]. The results also revealed that exchange rate, foreign direct investment, agricultural guarantee credit scheme fund, Recurrent and capital expenditures were positively related to aggregate agricultural supply response while inflation and interest showed inverse relationship to aggregate agricultural output. The results concluded that FDI, INTR, AGCSF and REC were macroeconomic policy variables that contributed significantly to the aggregate agricultural output at between 5 and 1 percent probability levels respectively. Also, the results of causality test revealed a bi-directional relationship between GDP and AGR. The study therefore, recommended that for Nigerian government to achieve the desired transformation agenda on agricultural output, the significant macroeconomic policy variables are germane to sustainable economic growth and development and hence should be properly addressed.
Life cycle assessment 2013 of the Hebb building
Creators: name: Zhang, Zeyu Rocky
Publisher: name: The University of British Columbia
Year: 2015

description: This LCA of the HEBB building is part of a series of studies being carried out simultaneously on respective buildings at UBC in an attempt to conduct environmental performance comparisons for future reference. The HEBB building is modeled using On-Screen Takeoff and Impact Estimator. Impact categories are listed for the building and its corresponding elements. Interpretations and recommendations are given for the use of LCA. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Carina's Defiant Finger: HST Observations of a Photoevaporating Globule in NGC3372
Creators: name: Smith, Nathan
name: Barba, Rodolfo
name: Walborn, Nolan R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present HST/WFPC2 images of a prominent externally-ionized molecular globule in the Carina Nebula (NGC3372), supplemented with ground-based IR images and visual-wavelength spectra. This molecular globule has a shape resembling a human hand, with an extended finger that points toward its likely source of ionizing radiation. The dominant ionizing source of the globule is either the WNL star WR25 (HD93162), the O4 If-type star Tr16-244, or perhaps both. We estimate a mass-loss rate of ~2e-5 Msun/yr from the main evaporating surface of the globule, suggesting a remaining lifetime of 10^5.3 to 10^6 years. We find a total mass for the entire globule of more than 6 Msun, in agreement with previous estimates. The hydrogen column density through the globule is a few times 10^22/cm2. Although a few reddened stars are seen within the boundary of the globule in near-IR continuum images, these may be background stars. We do not detect a reddened star at the apex of the finger, for example, down to a limiting magnitude of K=17. However, considering the physical properties of the globule and the advancing ionization front, it appears that future star formation is likely in the Finger globule, induced by radiation-driven implosion.
description: 15 pages, 10 Figures, accepted by MNRAS
Volunteer work and Entering the Profession from the Periphery
Creators: name: Stueven, Christopher
name: Villiers, Annelie De
name: Adams, Romney
Publisher: name: Monash University
Year: 2020
Subjects: subject: 80706 Librarianship
subject: FOS: Media and communications
subject: Library and Information Studies

description: ASA National Conference
This Q&A panel session discussed students' and recent graduates' involvement in volunteer work within the sector. These conversations were placed within a broader context of the student/graduate experience and how volunteerism may impact both positively and negatively upon the value ascribed to the archival profession in Australia.
Presenters: Christopher Stueven, Annelie de Villiers, Chris Holmes, Romney Adams

Location: Hotel Grand Chancellor, Hobart, TAS., Australia

Date: 19 August 2015
PHASES Differential Astrometry and the Mutual Inclination of the V819 Herculis Triple Star System
Creators: name: Muterspaugh, Matthew W.
name: Lane, Benjamin F.
name: Konacki, Maciej
name: Burke, Bernard F.
name: Colavita, M. M.
name: Kulkarni, S. R.
name: Shao, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: V819 Herculis is a well-studied triple star system consisting of a ``wide'' pair with 5.5 year period, one component of which is a 2.2-day period eclipsing single-line spectroscopic binary. Differential astrometry measurements from the Palomar High-precision Astrometric Search for Exoplanet Systems (PHASES) are presented and used to determine a relative inclination between the short- and long-period orbits of 23.6 +- 4.9 degrees. This represents only the sixth unambiguous determination of the mutual inclination of orbits in a hierarchical triple system. This result is combined with those for the other five systems for analysis of the observed distribution of mutual inclinations in nearby triple systems. It is found that this distribution is different than that which one would expect from random orientations with statistical significance at the 94% level; implications for studying the spatial distribution of angular momentum in star forming regions is discussed.
description: Accepted for publication in Astronomy and Astrophysics; changed direction of axis for figure 2b
Mechanical ringdown studies of large-area substrate-transferred GaAs/AlGaAs crystalline coatings
Creators: name: Penn, Steven D.
name: Kinley-Hanlon, Maya M.
name: MacMillan, Ian A.
name: Heu, Paula
name: Follman, David
name: Deutsch, Christoph
name: Cole, Garrett D.
name: Harry, Gregory M.
Publisher: name: American University
Year: 2023

description: We investigated elastic loss in GaAs/AlGaAs multilayers to help determine the suitability of these coatings for future gravitational wave detectors. We measured large (≈70-mm diameter) substrate-transferred crystalline coating samples with an improved substrate polish and bonding method. The elastic loss, when decomposed into bulk and shear contributions, was shown to arise entirely from the bulk loss, ϕ bulk 5.33 0.03 × 10 −4 , with ϕ shear 0.0 −0 5 .0 .2 × 10− 7 . These results predict the coating loss of an 8-mm diameter coating in a 35-mm long cavity with a 250-μm spot size (radius) to be ϕ coating 4.78 0.05 × 10− 5 , in agreement with the published result from direct thermal noise measurement of ϕ coating 4 4 × 10− 5 . Bonding defects were shown to have little impact on the overall elastic loss.
Additional file 1 of The impact of lookback windows on the prevalence and incidence of chronic diseases among people living with HIV: an exploration in administrative health data in Canada
Creators: name: Nanditha, Ni Gusti Ayu
name: Dong, Xinzhe
name: McLinden, Taylor
name: Sereda, Paul
name: Kopec, Jacek
name: Hogg, Robert S.
name: Montaner, Julio S. G.
name: Lima, Viviane D.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1.
Emergence of Competing Stripe Phase near the Mott Transition in Ti-doped Bilayer Calcium Ruthenates
Creators: name: Gangshettiwar, Ashish
name: Zhu, Yanglin
name: Jiang, Zhanzhi
name: Peng, Jin
name: Wang, Yu
name: He, Jiaming
name: Zhou, Jianshi
name: Mao, Zhiqiang
name: Lai, Keji
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the nanoscale imaging of Ti-doped bilayer calcium ruthenates during the Mott metal-insulator transition by microwave impedance microscopy. Different from a typical first-order phase transition where coexistence of the two terminal phases takes place, a new metallic stripe phase oriented along the in-plane crystalline axes emerges inside both the G-type antiferromagnetic insulating state and paramagnetic metallic state. The effect of this electronic state can be observed in macroscopic measurements, allowing us to construct a phase diagram that takes into account the energetically competing phases. Our work provides a model approach to correlate the macroscopic properties and mesoscopic phase separation in complex oxide materials.
description: 19 pages, 4 main figures, 6 Supplementary figures
Immunization Dynamics on a 2-layer Network Model
Creators: name: Jo, Hang-Hyun
name: Moon, Hie-Tae
name: Baek, Seung Ki
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We introduce a 2-layer network model for the study of the immunization dynamics in epidemics. Spreading of an epidemic is modeled as an excitatory process in a small-world network (body layer) while immunization by prevention for the disease as a dynamic process in a scale-free network (head layer). It is shown that prevention indeed turns periodic rages of an epidemic into small fluctuation. The study also reveals that, in a certain situation, prevention actually plays an adverse role and helps the disease survive. We argue that the presence of two different characteristic time scales contributes to the immunization dynamics observed.
description: 5 pages, 7 figures
Resistance to Authoritarianism: the U.S. Sanctions against China
Creators: name: Mosashvili, Gia
Publisher: name: figshare
Year: 2020
Subjects: subject: 160607 International Relations
subject: FOS: Political science
subject: 140210 International Economics and International Finance
subject: FOS: Economics and business

description: The full text will be published in a few days.
Degenerate minimal see-saw and leptogenesis
Creators: name: Turzynski, Krzysztof
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the most general version of the supersymmetric minimal see-saw model with only two right-chiral neutrinos which are degenerate in masses at the scale of Grand Unification. We study the renormalization effects that give rise to non-zero CP asymmetries in the decays of these neutrinos and find that their resonant enhancement due to small mass splitting is partly compensated by other RG effects in the running of the neutrino Yukawa couplings. In spite of this compensation, the CP asymmetries can be large enough for successful thermal leptogenesis. Moreover, they depend very weakly on the right-chiral neutrino masses and the resulting leptogenesis can be successful for very low reheating temerature, thereby allowing to overcome the gravitino problem.
description: 8 pages, 2 figures; changes in the text to clarify the reasoning, references added
Mechanical ringdown studies of large-area substrate-transferred GaAs/AlGaAs crystalline coatings
Creators: name: Penn, Steven D.
name: Kinley-Hanlon, Maya M.
name: MacMillan, Ian A.
name: Heu, Paula
name: Follman, David
name: Deutsch, Christoph
name: Cole, Garrett D.
name: Harry, Gregory M.
Publisher: name: Journal of the Optical Society of America B: Optical Physics
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 5102
subject: Atomic, molecular and optical physics

description: We investigated elastic loss in GaAs/AlGaAs multilayers to help determine the suitability of these coatings for future gravitational wave detectors. We measured large (≈70-mm diameter) substrate-transferred crystalline coating samples with an improved substrate polish and bonding method. The elastic loss, when decomposed into bulk and shear contributions, was shown to arise entirely from the bulk loss, ϕ bulk 5.33 0.03 × 10 −4 , with ϕ shear 0.0 −0 5 .0 .2 × 10− 7 . These results predict the coating loss of an 8-mm diameter coating in a 35-mm long cavity with a 250-μm spot size (radius) to be ϕ coating 4.78 0.05 × 10− 5 , in agreement with the published result from direct thermal noise measurement of ϕ coating 4 4 × 10− 5 . Bonding defects were shown to have little impact on the overall elastic loss.
Additional file 1 of Association between unmet medication needs after hospital discharge and readmission or death among acute respiratory failure survivors: the addressing post-intensive care syndrome (APICS-01) multicenter prospective cohort study
Creators: name: Brown, Samuel M.
name: Dinglas, Victor D.
name: Akhlaghi, Narjes
name: Bose, Somnath
name: Banner-Goodspeed, Valerie
name: Beesley, Sarah
name: Groat, Danielle
name: Greene, Tom
name: Hopkins, Ramona O.
name: Mir-Kasimov, Mustafa
name: Sevin, Carla M.
name: Turnbull, Alison E.
name: Jackson, James C.
name: Needham, Dale M.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy

description: Additional file 1: Online supplemental materials.
Flexible random-effects distribution models for meta-analysis
Creators: name: Noma, Hisashi
name: Nagashima, Kengo
name: Kato, Shogo
name: Teramukai, Satoshi
name: Furukawa, Toshi A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In meta-analysis, the random-effects models are standard tools to address between-study heterogeneity in evidence synthesis analyses. For the random-effects distribution models, the normal distribution model has been adopted in most systematic reviews due to its computational and conceptual simplicity. However, the restrictive model assumption might have serious influences on the overall conclusions in practices. In this article, we first provide two examples of real-world evidence that clearly show that the normal distribution assumption is unsuitable. To address the model restriction problem, we propose alternative flexible random-effects models that can flexibly regulate skewness, kurtosis and tailweight: skew normal distribution, skew t-distribution, asymmetric Subbotin distribution, Jones-Faddy distribution, and sinh-arcsinh distribution. We also developed a R package, flexmeta, that can easily perform these methods. Using the flexible random-effects distribution models, the results of the two meta-analyses were markedly altered, potentially influencing the overall conclusions of these systematic reviews. The flexible methods and computational tools can provide more precise evidence, and these methods would be recommended at least as sensitivity analysis tools to assess the influence of the normal distribution assumption of the random-effects model.
Weak Gravitational Lensing in Ricci-Coupled Kalb-Ramond Bumblebee Gravity: Global Monopole and Axion-Plasmon Medium Effects
Creators: name: Övgün, Ali
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study the influence of the axion-plasmon medium, as proposed in [10.1103/PhysRevLett.120.181803]\cite{Tercas:2018gxv}, on the optical properties of black holes in a Lorentz-violating spacetime containing a global monopole. Our primary aim is to provide a test for detecting the effects of a fixed axion-plasmon background within the framework of Ricci-coupled Kalb-Ramond bumblebee gravity. By extending the conventional Einstein-bumblebee model through a nonminimal coupling between the Kalb-Ramond field and the Ricci tensor, we demonstrate that the combined presence of a global monopole and Lorentz-violating effects induces significant modifications to the classical Schwarzschild lensing signature. Employing the Gauss-Bonnet theorem within an optical geometry approach, we derive an analytical expression for the deflection angle that incorporates both linear and quadratic contributions from the Lorentz-violating parameter and the monopole charge. Furthermore, we investigate how the axion-plasmon coupling alters light propagation, affecting key observable gravitational deflection angle. Our results indicate that these optical characteristics are notably sensitive to the axion-plasmon parameters, thereby offering promising observational signatures for probing new physics beyond standard general relativity.
description: 9 pages, two-column. Published in Physics of the Dark Universe
Quench-produced solitons in a box-trapped Bose-Einstein condensate
Creators: name: Halperin, E. J.
name: Bohn, J. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We describe a protocol to prepare solitons in a quasi-1d box-trapped Bose-Einstein condensate using only a quench of the isotropic s-wave scattering length. A quench to exactly four times the initial 1d coupling strength creates one soliton at each boundary of the box, which then propagate in a uniform background density and collide with one another. No nonsolotonic excitations are created during the quench. The procedure is robust against imperfections in the scattering length ramp rate and a mismatch of the final scattering length.
On the connection between galactic downsizing and the most fundamental galactic scaling relations
Creators: name: Spitoni, E.
name: Calura, F.
name: Mignoli, M.
name: Gilli, R.
name: Aguirre, V. Silva
name: Gallazzi, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In their evolution, star-forming galaxies are known to follow scaling relations between some fundamental physical quantities, such as the mass-metallicity and the main sequence relations. We aim at studying the evolution of galaxies that, at a given redshift, lie simultaneously on the mass-metallicity and main sequence relations (MZR, MSR). To this aim, we use the analytical, 'leaky-box' chemical evolution model of Spitoni et al. (2017), in which galaxy evolution is described by an infall timescale $τ$ and a wind efficiency $λ$. We provide a detailed analysis of the temporal evolution of galactic metallicity, stellar mass, mass-weighted age and gas fraction. The evolution of the galaxies lying on the MZR and MSR at $z\sim0.1$ suggests that the average infall time-scale in two different bins of stellar masses ($M_{\star}<10^{10} M_{\odot}$ and $M_{\star}>10^{10} M_{\odot}$) decreases with decreasing redshift. This means that at each redshift, only the youngest galaxies can be assembled on the shortest timescales and still belong to the star-forming MSR. In the lowest mass bin, a decrease of the median $τ$ is accompanied by an increase of the median $λ$ value. This implies that systems which have formed at more recent times will need to eject a larger amount of mass to keep their metallicity at low values. Another important result is that galactic downsizing, as traced by the age-mass relation, is naturally recovered by imposing that local galaxies lie on both the MZR and MSR. Finally, we study the evolution of the hosts of C$_{\rm IV}$ -selected AGN, which at $z\sim 2$ follow a flat MZR, as found by Mignoli et al. (2019). If we impose that these systems lie on the MSR, at lower redshifts we find an 'inverted' MZR, meaning that some additional processes must be at play in their evolution.
description: Accepted for publication in Astronomy and Astrophysics (A&A), 20 pages, 26 figures
Strengths, Weaknesses, Opportunities and Threats (SWOT) Analysis of the Nigeria Agricultural Transformation Agenda (ATA)
Creators: name: Obayelu, A. E.
name: Obayelu, O. A.
name: Obayelu, A. E.
name: Obayelu, O. A.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: Political Economy
subject: Transformative function
subject: Sustainable development
subject: Situation analysi
subject: Value chains

description: Agricultural Transformation (AT) requires a new and different approach to policy making and implementation. It entails search by government for greater integration and co-ordination, looks for an approach that is characterized by greater partnership between federal, state and local government, economic entities, private industry and other community groups. The process involves diversification in the sector to meet changing domestic and trade demands. This study was mainly contents review of relevant literature and use of situation analysis. We examined agricultural policies changes in Nigeria and draw some lessons from successful agriculturally transformed countries. The results show that, bypassing small farmers during the process of AT is capable of marginalizing a large group of the rural population and cause social tensions. AT requires a comprehensive long term strategy that needs to be supported by long term commitment from the government and international development partners. The various steps Nigeria had taken in its AT process are necessary but not sufficient conditions for a successful transformation. Successful AT must be broad-based with efficient infrastructural investments in roads network, irrigation, consistent energy supply, high-speed and affordable communications, clear and consistent long-term policies, good working relationship among ministries and governmental bodies, effective rule of law, and good adaptation and mitigation measures consistent with sustainable development.
The Case for Anisotropic Afterglow Efficiency within Gamma-Ray Burst Jets
Creators: name: Eichler, David
name: Granot, Jonathan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Early X-ray afterglows recently detected by {\it Swift} frequently show a phase of very shallow flux decay lasting from $\sim 10^{2.5} $s up to $\sim 10^4 $s, followed by a steeper, more familiar decay. We suggest that the flat early part of the light curve may be a combination of the decaying tail of the prompt emission and the delayed onset of the afterglow emission observed from viewing angles slightly outside the edge of the region within the jet with prominent afterglow emission, as predicted previously. This would imply that a significant fraction of viewers get very little external shock energy along their line of sight, and, therefore, see a very high $γ$-ray to kinetic energy ratio at early times. The early flat phase in the afterglow light curve implies, in a rather robust and model independent manner, a very large $γ$-ray efficiency, typically $\gtrsim 90%$, which is very difficult to extract from baryons by internal shocks.
description: Revised version, submitted to ApJ
Circumbinary Planets -- The Next Steps
Creators: name: Martin, David V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Kepler mission opened the door to a small but bonafide sample of circumbinary planets. Some initial trends have been identified and used to challenge our theories of planet and binary formation. However, the Kepler sample is not only small but contains biases. I will present a circumbinary plan for the future. Specifically, I will cover the BEBOP radial velocity survey, the latest TESS transit mission and a new technique for digging out small circumbinary planets in archival Kepler photometry.
description: Invited conference proceedings for Universe of Binaries, Binaries in the Universe in Telc, Czech Republic, September 2019