cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An efficient basis set representation for calculating electrons in molecules
Creators: name: Jones, Jeremiah R.
name: Rouet, Francois-Henry
name: Lawler, Keith V.
name: Vecharynski, Eugene
name: Ibrahim, Khaled Z.
name: Williams, Samuel
name: Abeln, Brant
name: Yang, Chao
name: Haxton, Daniel J.
name: McCurdy, C. William
name: Li, Xiaoye S.
name: Rescigno, Thomas N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The method of McCurdy, Baertschy, and Rescigno, J. Phys. B, 37, R137 (2004) is generalized to obtain a straightforward, surprisingly accurate, and scalable numerical representation for calculating the electronic wave functions of molecules. It uses a basis set of product sinc functions arrayed on a Cartesian grid, and yields 1 kcal/mol precision for valence transition energies with a grid resolution of approximately 0.1 bohr. The Coulomb matrix elements are replaced with matrix elements obtained from the kinetic energy operator. A resolution-of-the-identity approximation renders the primitive one- and two-electron matrix elements diagonal; in other words, the Coulomb operator is local with respect to the grid indices. The calculation of contracted two-electron matrix elements among orbitals requires only O(N log(N)) multiplication operations, not O(N^4), where N is the number of basis functions; N = n^3 on cubic grids. The representation not only is numerically expedient, but also produces energies and properties superior to those calculated variationally. Absolute energies, absorption cross sections, transition energies, and ionization potentials are reported for one- (He^+, H_2^+ ), two- (H_2, He), ten- (CH_4) and 56-electron (C_8H_8) systems.
description: Submitted to JCP
Effect of inertia on laminar swimming and flying of an assembly of rigid spheres in an incompressible viscous fluid
Creators: name: Felderhof, B. U.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A mechanical model of swimming and flying in an incompressible viscous fluid in the absence of gravity is studied on the basis of assumed equations of motion. The system is modeled as an assembly of rigid spheres subject to elastic direct interactions and to periodic actuating forces which sum to zero. Hydrodynamic interactions are taken into account in the virtual mass matrix and in the friction matrix of the assembly. An equation of motion is derived for the velocity of the geometric center of the assembly. The mean power is calculated as the mean rate of dissipation. The full range of viscosity is covered, so that the theory can be applied to the flying of birds, as well as to the swimming of fish or bacteria. As an example a system of three equal spheres moving along a common axis is studied.
description: 19 pages, 11 figures
“Grow All You Can, and Save All You Grow”:  Innovation and Tradition at The Prince Edward County Community Cannery
Creators: name: Evans, Hannah Janine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: This thesis explores the role of innovation in the enactment of tradition through the flourishing of the Prince Edward County Community Cannery in Farmville, Virginia. By narrating one canning season in Prince Edward County, I tell a larger story about foodways in the American South. The Prince Edward County Community Cannery opened in 1975 after consolidation began of earlier facilities that opened in the area in 1943. In order to answer questions about the work that the cannery does in the community, I explore the cannery in its historical context, and as a constellation of objects, before entering into a creative nonfiction narrative about the people and relationships that enliven the space. Finally, I consider the ways that this cannery has continued to thrive despite the closures of dozens of Virginia canneries because of its evolving relationship with innovation as a support system for tradition through the symbiotic relationship of a home canning and commercial canning enterprise under one roof.
(103968) John Gascoyne
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Coherent driving and freezing of bosonic matter wave in an optical Lieb lattice
Creators: name: Taie, Shintaro
name: Ozawa, Hideki
name: Ichinose, Tomohiro
name: Nishio, Takuei
name: Nakajima, Shuta
name: Takahashi, Yoshiro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: While kinetic energy of a massive particle generally has quadratic dependence on its momentum, a flat, dispersionless energy band is realized in crystals with specific lattice structures. Such macroscopic degeneracy causes the emergence of localized eigenstates and has been a key concept in the context of itinerant ferromagnetism. Here we report the realization of a "Lieb lattice" configuration with an optical lattice, which has a flat energy band as the first excited state. Our optical lattice potential possesses various degrees of freedom about its manipulation, which enables coherent transfer of a Bose-Einstein condensate into the flat band. In addition to measuring lifetime of the flat band population for different tight-binding parameters, we investigate the inter-sublattice dynamics of the system by projecting the sublattice population onto the band population. This measurement clearly shows the formation of the localized state with the specific sublattice decoupled in the flat band, and even detects the presence of flat-band breaking perturbations, resulting in the delocalization. Our results will open up the possibilities of exploring physics of flat band with a highly controllable quantum system.
description: 13 pages, 9 figures. v2: Title changed, 1 reference corrected
Application of PCR-DGGE method for identification of nematode communities in pepper growing soil
Creators: name: Hieu, Duong Duc
Publisher: name: Journal of Vietnamese Environment
Year: 2016

description: Soil nematodes play an important role in indication for assessing soil environments and ecosystems. Previous studies of nematode community analyses based on molecular identification have shown to be useful for assessing soil environments. Here we applied PCR-DGGE method for molecular analysisoffive soil nematode communities (designed as S1 to S5) collected from four provinces in Southeastern Vietnam (Binh Duong, Ba Ria Vung Tau, Binh Phuoc and Dong Nai) based on SSU gene. By sequencing DNA bands derived from S5 community sample, our data show 15 species containing soil nematode, other nematode and non-nematode (fungi) species. Genus Meloidogyne was found as abundant one. The genetic relationship of soil nematode species in S5 community were determined by Maximum Likelihood tree re-construction based on SSU gene. This molecular approach is applied for the first time in Vietnam for identification of soil nematode communities. Tuyến trùng đất đóng vai trò chỉ thị quan trọng trong công tác đánh giá môi trường và hệ sinh thái đất. Các nghiên cứu trước đây đã cho thấy lợi ích của việc phân tích cộng đồng tuyến trùng đất bằng định danh sinh học phân tử đối với việc đánh giá môi trường đất. Ở đây, chúng tôi ứng dụng phương pháp PCR-DGGE dựa trên gene SSU để phân tích năm (ký hiệu từ S1 đến S5) cộng đồng tuyến trùng đất thuộc các vùng trồng chuyên canh cây hồ tiêu ở miền nam Việt Nam (Bình Dương, Bà Rịa Vũng Tàu, Bình Phước và Đồng Nai). Bằng cách giải trình tự các vạch của mẫu tuyến trùng S5, kết quả cho thấy cộng đồng tuyến trùng này có 15 loài gồm nhóm tuyến trùng đất, nhóm các loại tuyến trùng khác và nhóm không phải tuyến trùng (nấm) và trong đó Meloidogyne là giống ưu thế. Mối quan hệ di truyền của các các loài tuyến trùng đất thuộc cộng đồng S5 được xác định bằng việc thiết lập cây phát sinh loài Maximum Likelihood dựa trên gene SSU. Đây là nghiên cứu đầu tiên ở Việt Nam sử dụng kỹ thuật PCR-DGGE để phân tích các cộng đồng tuyến trùng đất trồng hồ tiêu.
description: Journal of Vietnamese Environment, Vol 7 No 1 (2016)
Natural disaster, catastrophe and environmental protection in Vietnam
Creators: name: Chu, Thi Thu Ha
Publisher: name: Journal of Vietnamese Environment
Year: 2017

description: During development process, especially under the impact of climate change, natural disaster is one of the major challenges. In fact, the degree of devastation of natural disasters such as storms, floods and landslides are enormous, causing severe damage to people, property and environmental degra- dation. These natural disasters increasingly occurring more frequently in the last 20 years claimed the lives of many people. Unlike natural disasters, catastrophes are often related to human factors. Thus, the policy on response, treatment should also take into account the legal process in order to ensure that the principle of the polluter must bear responsibility after incidents and catastrophes. The catastrophe is a serious disruption of a community activity, causing loss of life, environment and material on a large scale. Normally catastrophe is beyond the capacity of affected communities to cope with, if only sources power of that community is used. The impact of economic - social devel- opment, climate change and natural disasters, environmental pollution situation, the capacity to re- spond to environmental incidents ... has been the pressure and challenge to Vietnam.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
Supplemental DataA potent MAPK13-14 inhibitor prevents airway inflammation and mucus production
Creators: name: Holtzman, Michael
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 319999
subject: Other biological sciences not elsewhere classified

description: Supplemental Data: Tables 1 and 2A potent MAPK13-14 inhibitor prevents airway inflammation and mucus productionShamus P. Keeler1, Kangyun Wu1, Yong Zhang1, Dailing Mao1, Ming Li1, Courtney A. Iberg1, Stephen R. Austin3, Jennifer Yantis1, Stephanie Podgorny1, Steven L. Brody1, Joshua R. Chartock1, Zhenfu Han1, Derek E. Byers1, Arthur G. Romero1, and Michael J. Holtzman1,2,3*1Pulmonary and Critical Care Medicine, Department of Medicine and 2Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, MO 63110 and 3NuPeak Therapeutics Inc., St. Louis, MO 63105
(103963) Samuel Hemming
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On the stability of dyons and dyonic black holes in Einstein-Yang-Mills theory
Creators: name: Nolan, Brien C.
name: Winstanley, Elizabeth
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the stability of four-dimensional dyonic soliton and black hole solutions of ${\mathfrak {su}}(2)$ Einstein-Yang-Mills theory in anti-de Sitter space. We prove that, in a neighbourhood of the embedded trivial (Schwarzschild-)anti-de Sitter solution, there exist non-trivial dyonic soliton and black hole solutions of the field equations which are stable under linear, spherically symmetric, perturbations of the metric and non-Abelian gauge field.
description: 27 pages, 6 figures, minor changes, matches version published in Classical and Quantum Gravity
Digital Leadership: How Can Instructional Leaders Support Northern Alberta Students and Teachers in Online Classrooms?
Creators: Hayden Gust
Publisher: name: University of Alberta Library
Year: 2022

The closing of the Alberta Distance Learning Center combined with the COVID-19 pandemic resulted in a situation where rural and remote school divisions in Northern Alberta had to develop virtual education programs to serve their student population online. This study explored the perceived requirements and practices in developing an effective online Science, Technology, Engineering and Mathematics (STEM) classroom for rural and remote Northern Alberta schools. Questions asked of participants were centred around three themes: (a) student engagement, (b) technology, and, (c) best practices. This study drew on qualitative phenomenological and interpretive research design, conducting semi-structured, open-ended

interviews with three STEM teachers who had a minimum five years of teaching experience, and had also taught at least two STEM courses online. An analysis of the data generated a fourth theme centered around student connection through face-to-face meetings. The findings of this study show teachers and digital instructional leaders should strive to engage students in short visually interesting lessons while encouraging students to engage with the material through active participation. Digital instructional leaders should also press to ensure students have access not only to all the technology required, such as a workstation instead of a single laptop, but push those higher up in leadership to ensure students also have access to high speed internet wherever they may need to access it. Digital leaders should also be supporting teachers in developing best practices suited for the online classroom, such as building engaging material and videos from the start. Such best practices can also be in the form of a complete pedagogical change from teacher-centered lecturing to student-centered flipped classrooms. Lastly, teachers and digital instructional leaders should strive to meet their online students in person within the first week of school as this face-to-face student connection was highlighted by participants as being a key to an effective online classroom.
(103961) Thomas Clark
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Weight Assignment Logic
Creators: name: Perevoshchikov, Vitaly
Publisher: name: arXiv
Year: 2015
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We introduce a weight assignment logic for reasoning about quantitative languages of infinite words. This logic is an extension of the classical MSO logic and permits to describe quantitative properties of systems with multiple weight parameters, e.g., the ratio between rewards and costs. We show that this logic is expressively equivalent to unambiguous weighted Büchi automata. We also consider an extension of weight assignment logic which is expressively equivalent to nondeterministic weighted Büchi automata.
description: This is the full version of the paper published at DLT 2015
(103962) Samuel Charles Hemming
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(103964) Henry Truland Cherry
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(103960) Walter Augustus Daubeny
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Influences of some ecological factors on bacterial cellulose (BC) membrane forming process in Spirulina medium
Creators: name: Dinh, Thi Kim Nhung
name: Nguyen, Thi Kim Ngoan
Publisher: name: Journal of Vietnamese Environment
Year: 2017

description: Formed by a kind of bacteria called Gluconacetobacter, bacterial cellulose (biocellulose, BC) membrane, compared to cellulose from plants, has superior properties for the strength, toughness, durability and elasticity. The subjects of this study are bacteria being able to produce Bacterial cellulose in Spirulina medium. The study aims to investigate the influences of some ecological factors on the Bacterial cellulose membrane forming process in Spirulina medium, and then find out appropriate nutritional media and conditions for the fermentation in Bacterial cellulose forming process. The study has some major findings: (1) Select two strains of bacteria: Gluconacetobacter xylinus T6 and Gluconacetobacter xylinus T9, which prove to be capable of producing cellulose membrane to be used in making nourishing face masks for its thinness, smoothness, toughness and uniformity; (2) Find out the appropriate medium for the formation of Bacterial cellulose membrane, including (NH4)2SO4: 0.5 (g), KH2PO4: 1 (g), glucose: 10 (g), algae powder: 20 (g), and distilled water: 1000 (ml). Successful fermentation for membrane production could be done in appropriate pH of 5 and appropriate temperature of 32°C. The ratio of surface area per volume of fermentation (S/V) is 0.8, and the membrane can be collected after 5 days. Màng cellulose vi khuẩn (Bacterial cellulose; Biocellulose; BC) do vi khuẩn Gluconacetobacter tạo ra có những đặc tính vượt trội so với cellulose của thực vật về độ dẻo dai, độ bền, chắc khỏe và độ đàn hồi. Đối tượng: vi khuẩn có khả năng tạo màng Bacterial cellulose từ môi trường tảo xoắn Spirulina. Mục tiêu: Khảo sát ảnh hưởng của một số yếu tố đến quá trình tạo màng Bacterial cellulose trên môi trường tảo xoắn Spirulina, từ đó tìm ra được môi trường dinh dưỡng và điều kiện thích hợp cho quá trình lên men tạo màng Bacterial cellulose. Kết quả: tuyển chọn được 2 chủng vi khuẩn Gluconacetobacter xylinus T6 và Gluconacetobacter xylinus T9 có khả năng tạo màng cellulose có đặc tính mỏng, nhẵn, đồng đều, dai phù hợp với các tiêu chí làm mặt nạ dưỡng da. Xác định được môi trường thích hợp cho sự hình thành màng Bacterial cellulose gồm (NH4)2SO4: 0,5 (g), KH2PO4: 1 (g), glucose: 10 (g), bột tảo: 20 (g), nước cất 1000 (ml) với thời gian thu màng là 5 ngày, pH thích hợp là 5 và nhiệt độ thuận lợi cho quá trình lên men tạo màng là 32°C, tỉ lệ diện tích bề mặt trên thể tích lên men là S/V = 0,8.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
Measurement of transport coefficients in electrolytes applying electrochemical impedance spectroscopy
Creators: name: Radici, Pablo
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2022
Subjects: subject: Fuel cells
subject: electrolyte
subject: Electrochemical impedance spectroscopy
subject: Non-Equilibrium Thermodynamics
subject: Proton exchange membrane
subject: Yttria stabilized zirconia
subject: Brennstoffzellen
subject: Electrochemische Impedanzspektroscopie
subject: Thermodynamik irreversibler Prozesse
subject: Yttriumoxid stabiliziertem Zirkoniumdioxid
subject: Polymerelektrolytmembran
subject: Elektrolyt
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Fuel cells shall play a key role in the transition and establishment of a emission free energy matrix. The electrolyte is the heart and soul of a fuel cell, being the component that makes possible their functioning but also causing their highest losses. Electrolytes have been studied and characterised up to date almost exclusively by means of mono-causal classical models, e.g. Ohm’s Law and Fick’s Law. These approaches have proved to be partially, when not entirely, unsatisfactory when compared to experimental data. Therefore it is proposed to study and measure the transport processes taking into consideration a multi-causal approach, known as Non Equilibrium Thermodynamics, as proposed by the Nobel prize award physicist Lars Onsager. The approach has been proved to fit better experimental data of membrane processes, as e.g. in PEM fuel cells. The two widespread types of fuel cells have been considered, so that two electrolytes were subject to investigation: the solid oxide electrolyte and the polymer electrolyte. Both electrolytes were investigated in terms of Non-Equilibrium Thermodynamics. Models were developed to experimentally determine the transport coefficients defined by this theory by means of Electrochemical Impedance Spectroscopy, the novelty of this thesis. Two test benches were modified to apply gradients in temperature or concentration, so that the coupled effects could be magnified thus making possible to measure the transport coefficients. The measurements of the solid oxide electrolyte show large deviations compared to literature values, making possible only a qualitative analysis. The ionic transport coefficient was determined and the coupled transport coefficient was approximated. Possible improvements to increase the reliability of the measurements and the test bench were proposed. The characterisation of the polymer electrolyte proved to be even more challenging because of the coupling between electrolyte and gas diffusion media. Moreover, the test bench introduced a distortion frequency, reducing the meaningfulness of the measurements. The ionic conductivity was calculated directly from impedance spectra while the coupled coefficients were approximated from the slopes of established curves. The results were compared toliterature values, estimated from mono-causal models.
3D Directed Formation Control with Global Shape Convergence using Bispherical Coordinates
Creators: name: Mirzaeedodangeh, Omid
name: Mehdifar, Farhad
name: Dimarogonas, Dimos V.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present a novel 3D formation control scheme for directed graphs in a leader-follower configuration, achieving (almost) global convergence to the desired shape. Specifically, we introduce three controlled variables representing bispherical coordinates that uniquely describe the formation in 3D. Acyclic triangulated directed graphs (a class of minimally acyclic persistent graphs) are used to model the inter-agent sensing topology, while the agents' dynamics are governed by single-integrator model. Our analysis demonstrates that the proposed decentralized formation controller ensures (almost) global asymptotic stability while avoiding potential shape ambiguities in the final formation. Furthermore, the control laws are implementable in arbitrarily oriented local coordinate frames of follower agents using only low-cost onboard vision sensors, making it suitable for practical applications. Finally, we validate our formation control approach by a simulation study.
description: Submitted to ECC 2024
(103957) George Gunning
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Convergence Rates for Exponentially Ill-Posed Inverse Problems with Impulsive Noise
Creators: name: König, Claudia
name: Werner, Frank
name: Hohage, Thorsten
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65J20, 65K10, 65J22, 46B70

description: This paper is concerned with exponentially ill-posed operator equations with additive impulsive noise on the right hand side, i.e. the noise is large on a small part of the domain and small or zero outside. It is well known that Tikhonov regularization with an $L^1$ data fidelity term outperforms Tikhonov regularization with an $L^2$ fidelity term in this case. This effect has recently been explained and quantified for the case of finitely smoothing operators. Here we extend this analysis to the case of infinitely smoothing forward operators under standard Sobolev smoothness assumptions on the solution, i.e. exponentially ill-posed inverse problems. It turns out that high order polynomial rates of convergence in the size of the support of large noise can be achieved rather than the poor logarithmic convergence rates typical for exponentially ill-posed problems. The main tools of our analysis are Banach spaces of analytic functions and interpolation-type inequalities for such spaces. We discuss two examples, the (periodic) backwards heat equation and an inverse problem in gradiometry.
description: to appear in SIAM J. Numer. Anal
Impact of forest fire on diversity of hymenopteran insects – a study at Copia species-used forest, Son La Province
Creators: name: Pham, Thi Nhi
name: Hoang, Vu Tru
name: Pham, Van Phu
Publisher: name: Journal of Vietnamese Environment
Year: 2017

description: Besides the unsustainable exploitation, farming activities and economic development activities, forest fire is considered as one of the major threats to biodiversity and deforestation in Vietnam. In forest ecosystems, any changes in insect communities can affect species composition, nutrient cycling and numerous other ecological processes. The impact of forest fires, however, is not equal to different insect groups. In this paper, we study the impact of forest fires to hymenopteran insects at Copia species-use forest, Son La Province. This is the first time this kind of study has been taken place in Vietnam. Bên cạnh việc khai thác không bền vững, tập quán canh tác và các hoạt động phát triển kinh tế, cháy rừng được xem là một trong những mối đe dọa chính ảnh hưởng tiêu cực tới đa dạng sinh học và mất rừng ở Việt Nam. Trong các hệ sinh thái rừng, những thay đổi trong cấu trúc của quần xã côn trùng có ảnh hưởng tới thành phần loài, chu trình dinh dưỡng và rất nhiều quá trình sinh thái khác. Tuy nhiên mức độ ảnh hưởng của cháy rừng tới các nhóm côn trùng khác nhau là khác nhau. Trong bài báo này, chúng tôi nghiên cứu tác động của cháy rừng tới nhóm côn trùng cánh màng tại khu rừng đặc dụng Copia, tỉnh Sơn La. Đây cũng là lần đầu tiên tác động của cháy rừng tới nhóm côn trùng cánh màng được thực hiện ở Việt Nam.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
Study on the possibility of using microorganisms as biological agents to control fungal pathogens Neoscytalidium dimidiatum causing disease of brown spots on the dragon fruit
Creators: name: Luong, Huu Thanh
name: Nguyen Kieu, Bang Tam
name: Vu, Thuy Nga
name: Ha, Thi Thuy
name: Tong, Hai Van
name: Hua, Thi Son
name: Nguyen, Ngoc Quynh
name: Nguyen, Thi Hang Nga
Publisher: name: Journal of Vietnamese Environment
Year: 2017

description: Research and application of microbial control of brown spot disease on the dragon fruit caused by fungi Neoscytalidium dimetiatum have important implications towards the safe and sustainable dragon fruit production. In this article, the research team has identified two strains of microorganisms capable of inhibiting fungi Neoscytalidium dimitiatum denoted A3, B7. Classification results determined that A3 belongs to Actinomyces group 3 with similarities of 100% (1500/1500 bp) with 16S rDNA segment of Streptomyces fradiae; B7 with similarities of 100% (1414/1414 bp) with 16S rDNA segment of bacteria Bacillus polyfermenticus and ensure biosafety when released into the environment. Nghiên cứu ứng dụng vi sinh vật kiểm soát bệnh đốm nâu trên cây thanh long do nấm Neoscytalidium dimetiatum gây ra có ý nghĩa quan trọng hướng tới ngành sản xuất thanh long an toàn và bền vững. Trong bài viết này nhóm nghiên cứu đã xác định được hai chủng vi sinh vật có khả năng ức chế nấm Neoscytalidium dimitiatum cao kí hiệu là A3, B7. Kết quả phân loại xác định chủng A3 thuộc nhóm xạ khuẩn 3 tương đồng 100% (1500/1500 bp) với đoạn 16S rDNA của Streptomyces fradiae; chủng B7 tương đồng 100% (1414/1414 bp) với đoạn 16S của vi khuẩn Bacillus polyfermenticus và đảm bảo an toàn sinh học khi phóng thích ra môi trường.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
Creators: name: Abdel-Rehim, A.
name: Alexandrou, C.
name: Constantinou, M.
name: Dimopoulos, P.
name: Frezzotti, R.
name: Hadjiyiannakou, K.
name: Jansen, K.
name: Kallidonis, Ch.
name: Kostrzewa, B.
name: Koutsou, G.
name: Mangin-Brinet, M.
name: Oehm, M.
name: Rossi, G. C.
name: Urbach, C.
name: Wenger, U.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present results on the nucleon scalar, axial and tensor charges as well as on the momentum fraction, and the helicity and transversity moments. The pion momentum fraction is also presented. The computation of these key observables is carried out using lattice QCD simulations at a physical value of the pion mass. The evaluation is based on gauge configurations generated with two degenerate sea quarks of twisted mass fermions with a clover term. We investigate excited states contributions with the nucleon quantum numbers by analyzing three sink-source time separations. We find that, for the scalar charge, excited states contribute significantly and to a less degree to the nucleon momentum fraction and helicity moment. Our analysis yields a value for the nucleon axial charge agrees with the experimental value and we predict a value of 1.027(62) in the $\overline{\text{MS}}$ scheme at 2 GeV for the isovector nucleon tensor charge directly at the physical point. The pion momentum fraction is found to be $\langle x\rangle_{u-d}^{π^\pm}=0.214(15)(^{+12}_{-9})$ in the $\overline{\rm MS}$ at 2 GeV.
description: The experimental value of the helicity plotted in Fig.17 is corrected. ETM Collaboration. 25 pages, 19 figures. Version accepted for PRD (volume 92, eid 114513)
Diversity and abundance of ants (Hymenoptera: Formicidae) in Phu Luong, Thai Nguyen province, Vietnam
Creators: name: Nguyen, Dai Dac
name: Nguyen, Lien Thi Phuong
Publisher: name: Journal of Vietnamese Environment
Year: 2016

description: Three different habitats: secondary forest, acacia plantation, and mixed forests on limestone, were chosen to determine and compare the ant species diversity in these habitats. A total of 24 identified species and 11 morphology species belonging to 20 genera in seven subfamilies were collected using pitfall traps from June 2014 to May 2015. The Shannon-Wiener’s species diversity index indicated that the diversity was the highest in the acacia plantation (2.08), followed by the secondary forest (1.99) and lowest in the mixed forests on limestone (1.83). There are three dominant species in the habitat (I), Pheidole noda, Odontomachus cf. monticola, and Odontoponera denticulate; four dominant species in the habitat (II), Odontoponera denticulata, Carebara diversa, Technomyrmex brunneus and Anoplolepis gracilipes; and only one dominant species in the habitat (III), Anoplolepis gracilipes. The species similarity (S) relatively low may be because of the difference vegetation and condition in the three habitats. Đa dạng loài kiến ​​trong ba môi trường sống khác nhau: rừng rậm thường xanh nhiệt đới, rừng keo và rừng hỗn giao trên núi đá vôi, được nghiên cứu để xác định và so sánh sự đa dạng các loài kiến ​​trong những môi trường sống. Phương pháp nghiên cứu: sử dụng bẫy hố từ tháng 6 năm 2014 đến tháng 5 năm 2015. Đã ghi nhận được 35 loài, thuộc 20 giống, 7 phân họ. Chỉ số đa dạng loài Shannon-Wiener cho thấy rừng keo có chỉ số đa dạng cao nhất (2,08), tiếp theo là rừng rậm thường xanh nhiệt đới (1,99) và cuối cùng là rừng hỗn giao trên núi đá vôi (1,83). Có 3 loài ưu thế ở sinh cảnh (I) là Pheidole noda, Odontomachus cf. monticola và Odontoponera denticulata, bốn loài ưu thế ở sinh cảnh (II) là Carebara diversa, Technomyrmex brunneus, Odontoponera denticulate và Anoplolepis gracilipes. Ở sinh cảnh (III) chỉ có duy nhất một loài chiếm ưu thế là loài Anoplolepis gracilipes. Chỉ số tương đồng (S) tương đối thấp có thể là do sự khác nhau ở các thảm thực vật và điều kiện sống trong ba sinh cảnh.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
Observation of strongly enhanced photoluminescence from inverted cone-shaped silicon nanostuctures
Creators: name: Schmitt, Sebastian W.
name: Sarau, George
name: Christiansen, Silke H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Silicon nanowires (SiNWs) attached to a wafer substrate are converted to inversely tapered silicon nanocones (SiNCs). After excitation with visible light, individual SiNCs show a 200-fold enhanced integral band-to-band luminescence as compared to a straight SiNW reference. Furthermore, the reverse taper is responsible for multifold emission peaks in addition to the relatively broad nearinfrared (NIR) luminescence spectrum. A thorough numerical mode analysis reveals that unlike a SiNW the inverted SiNC sustains a multitude of leaky whispering gallery modes. The modes are unique to this geometry and they are characterized by a relatively high quality factor ($Q = 1300$) and a low mode volume ($0.2 < (λ/n_{eff})^3 < 4$). In addition they show a vertical out coupling of the optically excited NIR luminescence with a numerical aperture as low as 0.22. Estimated Purcell factors $F_p \propto Q/V_m$ of these modes can explain the enhanced luminescence in individual emission peaks as compared to the SiNW reference. Investigating the relation between the SiNC geometry and the mode formation leads to simple design rules that permit to control the number and wavelength of the hosted modes and therefore the luminescent emission peaks.
(103958) Andrew Daubeny
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Strictly convex Wulff shapes and $C^1$ convex integrands
Creators: name: Han, Huhe
name: Nishimura, Takashi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 52A20, 52A55, 82D25

description: In this paper, it is shown that a Wulff shape is strictly convex if and only if its convex integrand is of class $C^1$. Moreover, applications of this result are given.
description: 11 pages, 6 figures
Global Scale Impacts
Creators: name: Asphaug, Erik
name: Collins, Gareth
name: Jutzi, Martin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Global scale impacts modify the physical or thermal state of a substantial fraction of a target asteroid. Specific effects include accretion, family formation, reshaping, mixing and layering, shock and frictional heating, fragmentation, material compaction, dilatation, stripping of mantle and crust, and seismic degradation. Deciphering the complicated record of global scale impacts, in asteroids and meteorites, will lead us to understand the original planet-forming process and its resultant populations, and their evolution in time as collisions became faster and fewer. We provide a brief overview of these ideas, and an introduction to models.
description: A chapter for Asteroids IV, a new volume in the Space Science Series, University of Arizona Press (Patrick Michel, Francesca E. DeMeo, William F. Bottke, Eds.)
(103959) Andrew Richard Daubeny
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Detrimental impacts of toxic Microcystis aeruginosa from Vietnam on life history traits of Daphnia magna
Creators: name: Vo, Thi My Chi
name: Pham, Thanh Luu
name: Dao, Thanh Son
Publisher: name: Journal of Vietnamese Environment
Year: 2016

description: In this study, we tested the long-term and negative effects of microcystin-producing cyanobacterium Microcystis aeruginosa from Vietnam on Daphnia magna under the laboratory conditions. The test organisms were fed with mixtures of green alga Scenedesmus armatus and toxic M. aeruginosa at different ratios (10% Microcystis + 90% Scenedesmus, 50% Microcystis + 50% Scenedesmus, 100% Microcystis, and 100% Scenedesmus) for over a period of 21 days. The life history traits of the organisms such as, survival, maturation, fecundity were daily recorded. Besides, the intrinsic population rate of D. magna in each treatment was also calculated based on the survivorship, the reproductive age and the clutch size of the animals. The results showed that survival, maturation and reproduction of the D. magna fed with 10, 50 and 100% M. aeruginosa was impaired. Additionally, the intrinsic population rate of the exposed D. magna was lower than that of the control. This study evidenced the adverse effects of toxic M. aeruginosa on both the individual and intrinsic population levels of D. magna. To our knowledge, this is the first report on the chronically detrimental impacts of toxic M. aeruginosa isolated from Vietnam on D. magna and contributed the scientific information on the severe influences of toxic cyanobacteria world wide. Trong bài viết này, chúng tôi nghiên cứu ảnh hưởng xấu mãn tính của loài vi khuẩn lam Microcystis aeruginosa có khả năng sản sinh độc tố microcysin từ Việt Nam lên Daphnia magna trong điều kiện phòng thí nghiệm. Sinh vật thí nghiệm được cho ăn với hỗn hợp tảo lục Scenedesmus armatus và M. aeruginosa có độc ở các tỷ lệ khác nhau (10% Microcystis + 90% Scenedesmus, 50% Microcystis + 50% Scenedesmus, 100% Microcystis, và 100% Scenedesmus) trong thời gian 21 ngày. Các đặc điểm vòng đời của sinh vật bao gồm sức sống, sự thành thục, sức sinh sản được theo dõi hàng ngày. Bên cạnh đó, tỷ lệ phát triển quần thể của D. magna trong từng lô thí nghiệm cũng được tính toán dựa vào sức sống, tuổi sinh sản và kích cỡ sinh sản của sinh vật. Kết quả cho thấy, sức sống, tuổi thành thục và sự sinh sản của D. magna cho ăn với 10, 50 và 100% M. aeruginosa bị ảnh hưởng xấu. Bên cạnh đó, tỷ lệ phát triển quần thể của D. magna trong lô phơi nhiễm thấp hơn so với đối chứng. Nghiên cứu này chứng minh ảnh hưởng xấu của M. aeruginosa có độc lên cả hai mức độ cá thể và quần thể của D. magna. Theo hiểu biết của chúng tôi, đây là báo cáo đầu tiên về ảnh hưởng xấu mãn tính của M. aeruginosa có độc phân lập từ Việt Nam lên D. magna and đóng góp thêm thông tin khoa học cho những ảnh hưởng nghiêm trọng của vi khuẩn lam có độc trên khắp thế giới.
description: Journal of Vietnamese Environment, Vol 8 No 1 (2016)
MAKING SENSE OF ETHNIC AND RACIAL POSITIONING AWAY FROM HOME: CHINESE INTERNATIONAL STUDENTS IN THE UNITED STATES AND JAPAN
Creators: name: Zhang, Tianhao
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: Drawing on interviews with Chinese international students in the United States and Japan, this thesis examines two aspects of migrants’ perceptions of the positioning of ethnic and racial groups in host societies: 1) how they see the relative positions of various groups in the host society; 2) what frames they use for interpreting such positioning of groups. First, I find that migrants perceptions of positioning of ethnic and racial groups are similar to that of the native-born, though with some differences. Second, I find that migrants use a wide range of frames to explain the observed relative positions of groups, and these frames can deviate from those used by the natives.
Laser frequency stabilization based on steady-state spectral-hole burning in Eu$^{3+}$:Y$_2$SiO$_5$
Creators: name: Cook, Shon
name: Rosenband, Till
name: Leibrandt, David R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present and analyze a method of laser frequency stabilization via steady-state patterns of spectral holes in Eu$^{3+}$:Y$_2$SiO$_5$. Three regions of spectral holes are created, spaced in frequency by the ground state hyperfine splittings of $~^{151}$Eu$^{3+}$. The absorption pattern is shown not to degrade after days of laser frequency stabilization. An optical frequency comparison of a laser locked to such a steady-state spectral-hole pattern with an independent cavity-stabilized laser and a Yb optical lattice clock demonstrates a spectral-hole fractional frequency instability of $1.0\times10^{-15}~ τ^{-\frac{1}{2}}$ that averages to $8.5^{+4.8}_{-1.8}\times10^{-17}$ at $τ= 73$ s. Residual amplitude modulation at the frequency of the RF drive applied to the fiber-coupled electro-optic modulator is reduced to less than $1\times10^{-6}$ fractional amplitude modulation at $τ>$ 1 s by an active servo. The contribution of residual amplitude modulation to the laser frequency instability is further reduced by digital division of the transmission and incident photodetector signals to less than $1\times10^{-16}$ at $τ>$ 1 s.
description: 5 pages, 8 figures
THE HIPSTER GENTRIFIERS: HOW CUSTOMERS OF AN INDEPENDENT COFFEE  SHOP JUSTIFY NEIGHBORHOOD CHANGE
Creators: name: Davenport, Erin Jane
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2020

description: In this paper I move the focus of sociological gentrification discussion away from private housing and into public “third-spaces”, such as a coffee shop, that provide insight into the collective, every day experience of life in a neighborhood. It asks interview respondents to consider how the neighborhood is changing, and through their responses, shows the cultural tools they use to understand and rationalize the negative effects of gentrification. I build on literature to show how ethical concerns over gentrification do not result in decisions to forego gentrification among gentrifiers, who in this study tend to minimize the role their residence has in changing the neighborhood. Also, through the case of homeless residents who frequent both the focal coffee shop and another nearby business, I show how treatment by employees related to brand identity and customer comfort help reinforce social boundaries.