cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evidence of a Phonon Hall Effect in the Kitaev Spin Liquid Candidate $α$-RuCl$_3$
Creators: name: Lefrançois, É.
name: Grissonnanche, G.
name: Baglo, J.
name: Lampen-Kelley, P.
name: Yan, J.
name: Balz, C.
name: Mandrus, D.
name: Nagler, S. E.
name: Kim, S.
name: Kim, Young-June
name: Doiron-Leyraud, N.
name: Taillefer, L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The material $α$-RuCl$_3$ has been the subject of intense scrutiny as a potential Kitaev quantum spin liquid, predicted to display Majorana fermions as low energy excitations. In practice, $α$-RuCl$_3$ undergoes a transition to a state with antiferromagnetic order below a temperature $T_{\rm N}$ $\approx$ 7 K, but this order can be suppressed by applying an external in-plane magnetic field of $H_\parallel$ = 7 T. Whether a quantum spin liquid phase exists just above that field is still an open question, but the reported observation of a quantized thermal Hall conductivity at $H_\parallel$ $>$ 7 T by Kasahara and co-workers $\big[$Kasahara ${\it et \ al}$., Nature ${\bf 559}$, 227 (2018)$\big]$ has been interpreted as evidence of itinerant Majorana fermions in the Kitaev quantum spin liquid state. In this study, we re-examine the origin of the thermal Hall conductivity $κ_{\rm xy}$ in $α$-RuCl$_3$. Our measurements of $κ_{\rm xy}$($T$) on several different crystals yield a temperature dependence very similar to that of the phonon-dominated longitudinal thermal conductivity $κ_{\rm xx}$($T$), for which the natural explanation is that $κ_{\rm xy}$ is also mostly carried by phonons. Upon cooling, $κ_{\rm xx}$ peaks at $T \simeq$ 20 K, then drops until $T_{\rm N}$, whereupon it suddenly increases again. The abrupt increase below $T_{\rm N}$ is attributed to a sudden reduction in the scattering of phonons by low-energy spin fluctuations as these become partially gapped when the system orders. The fact that $κ_{\rm xy}$ also increases suddenly below $T_{\rm N}$ is strong evidence that the thermal Hall effect in $α$-RuCl$_3$ is also carried predominantly by phonons. This implies that any quantized signal from Majorana edge modes would have to come on top of a sizable -- and sample-dependent -- phonon background.
description: 6 pages, 3 figures
Study of keyword extraction techniques for Electric Double Layer Capacitor domain using text similarity indexes: An experimental analysis
Creators: name: Miah, M. Saef Ullah
name: Sulaiman, Junaida
name: Sarwar, Talha Bin
name: Zamli, Kamal Z.
name: Jose, Rajan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Keywords perform a significant role in selecting various topic-related documents quite easily. Topics or keywords assigned by humans or experts provide accurate information. However, this practice is quite expensive in terms of resources and time management. Hence, it is more satisfying to utilize automated keyword extraction techniques. Nevertheless, before beginning the automated process, it is necessary to check and confirm how similar expert-provided and algorithm-generated keywords are. This paper presents an experimental analysis of similarity scores of keywords generated by different supervised and unsupervised automated keyword extraction algorithms with expert provided keywords from the Electric Double Layer Capacitor (EDLC) domain. The paper also analyses which texts provide better keywords like positive sentences or all sentences of the document. From the unsupervised algorithms, YAKE, TopicRank, MultipartiteRank, and KPMiner are employed for keyword extraction. From the supervised algorithms, KEA and WINGNUS are employed for keyword extraction. To assess the similarity of the extracted keywords with expert-provided keywords, Jaccard, Cosine, and Cosine with word vector similarity indexes are employed in this study. The experiment shows that the MultipartiteRank keyword extraction technique measured with cosine with word vector similarity index produces the best result with 92% similarity with expert provided keywords. This study can help the NLP researchers working with the EDLC domain or recommender systems to select more suitable keyword extraction and similarity index calculation techniques.
Note per una teoria della metalessi
Creators: name: Pagliuca, Concetta Maria
Publisher: name: Status Quaestionis
Year: 2024

description: The essay aims to bring to the attention of the Italian context the most recent theoretical acquisitions on metalepsis. First, starting from the definition, an attempt was made to circumscribe the field by specifying what metalepsis is not. Then, in light of some of the main. contributions on the subject, an original interpretative map was proposed. The last paragraph is dedicated to ongoing research and possible future lines of investigation. The final bibliography aspires to be exhaustive and fruitful for further in-depth studies.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
Helicity transfer in strong laser fields via the electron anomalous magnetic moment
Creators: name: Li, Yan-Fei
name: Chen, Yue-Yue
name: Hatsagortsyan, Karen Z.
name: Keitel, Christoph H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Electron beam longitudinal polarization during the interaction with counterpropagating circularly-polarized ultraintense laser pulses is investigated, while accounting for the anomalous magnetic moment of the electron. Although it is known that the helicity transfer from the laser photons to the electron beam is suppressed in linear and nonlinear Compton scattering processes, we show that the helicity transfer nevertheless can happen via an intermediate step of the electron radiative transverse polarization, phase-matched with the driving field, followed up by spin rotation into the longitudinal direction as induced by the anomalous magnetic moment of the electron. With spin-resolved QED Monte Carlo simulations, we demonstrate the consequent helicity transfer from laser photons to the electron beam with a degree up to 10%, along with an electron radial polarization up to 65% after multiple photon emissions in a femtosecond timescale. This effect is detectable with currently achievable laser facilities, evidencing the role of the leading QED vertex correction to the electron anomalous magnetic moment in the polarization dynamics in ultrastrong laser fields.
The effects of molecular structure on sol-to-gel transition of biodegradable poly(depsipeptide-co-lactide)-g-PEG copolymers
Creators: name: Takahashi, Akihiro
name: Umezaki, Masaya
name: Yoshida, Yasuyuki
name: Kuzuya, Akinori
name: Ohya, Yuichi
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: We report on the effects of number and length of PEG chains in poly(depsipeptide-co-dl-lactide)-g-poly(ethylene glycol) (P(DG-dl-LA)-g-PEG) copolymers on their sol-to-gel transition behavior. The graft-type copolymer is suitable for the systematic study of the effects of molecular structure and hydrophilic/hydrophobic balance on its sol-to-gel transition. We prepared various P(DG-dl-LA)-g-PEG copolymers through coupling reactions between the pendant carboxylic acid groups of P(GD-dl-LA) and the end hydroxyl group of MeO-PEG having various molecular weights. Temperature-responsive sol-to-gel transition of the obtained copolymer solution in phosphate-buffered solution (pH 7.4, ionic strength = 0.14) was investigated by the test tube inverting method and rheological measurements. P(GD-dl-LA)-g-PEG copolymer prepared from higher molecular weight PEG showed higher sol-to-gel transition temperatures compared with the copolymers prepared from lower molecular weight PEG, although these copolymers have similar weight content of PEG (23–24 wt.%). Similar trends were observed for groups of copolymers whose PEG contents were 27 or 30 wt.%. These results are informative for providing strategies on rational design of thermo-gelling polymers.
Lorentzian Vacuum Transitions in Hořava-Lifshitz Gravity
Creators: name: Garcia-Compean, H.
name: Mata-Pacheco, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The vacuum transition probabilities for a Friedmann-Lemaître-Robertson-Walker universe with positive curvature in Hořava-Lifshitz gravity in the presence of a scalar field potential in the Wentzel-Kramers-Brillouin approximation are studied. We use a general procedure to compute such transition probabilities using a Hamiltonian approach to the Wheeler-DeWitt equation presented in a previous work. We consider two situations of scalar fields, one in which the scalar field depends on all the spacetime variables and other in which the scalar field depends only on the time variable. In both cases analytic expressions for the vacuum transition probabilities are obtained and the infrared and ultraviolet limits are discussed for comparison with the result obtained by using general relativity. For the case in which the scalar field depends on all spacetime variables we obtain that in the infrared limit it is possible to obtain a similar behavior as in general relativity, however in the ultraviolet limit the behavior found is completely opposite. Some few comments about possible phenomenological implications of our results are given. One of them is a plausible resolution of the initial singularity. On the other hand for the case in which the scalar field depends only on the time variable, the behavior coincides with that of general relativity in both limits, although in the intermediate region the probability is slightly altered.
description: 26 pages, 2 figures. Some references added
Tre ‘noi’ innaturali
Creators: name: Pennacchio, Filippo
Publisher: name: Status Quaestionis
Year: 2024

description: The essay investigates we-narrative, a narrative form which revolves around a first-person plural narrator. More specifically, it focuses on unnatural we-narratives, i.e., narratives in which the we-narrator is a non-human collective. In order to do this, it analyzes three narrative texts published in Italy between 2015 and 2020 that in different ways challenge naturalness. After reasoning on how these texts can be naturalized, i.e., rationally explained, the final section will comment on the posture of the three we-narrators.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
Chemical composition of volatiles from Opuntia littoralisOpuntia ficus-indica, and Opuntia prolifera growing on Catalina Island, California
Creators: name: Setzer, William N.
name: Wright, Cynthia R.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: The essential oils from the cladodes of Opuntia littoralis, Opuntia ficus-indica and Opuntia prolifera growing wild on Santa Catalina Island, California, were obtained by hydrodistillation and analysed by gas chromatography-mass spectrometry (GC–MS). Terpenoids were the dominant class of volatiles in O. littoralis, with the two main components being the furanoid forms of cis-linalool oxide (10.8%) and trans-linalool oxide (8.8%). Fatty acid-derived compounds dominated the essential oil of O. ficus-indica with linoleic acid (22.3%), palmitic acid (12.7%), lauric acid (10.5%) and myristic acid (4.2%) as major fatty acids. O. prolifera oil was composed of 46.6% alkanes and the primary hydrocarbon component was heptadecane (19.2%). Sixteen compounds were common to all the three Opuntia species.
Embeddings and Integrable Charges for Extended Corner Symmetry
Creators: name: Ciambelli, Luca
name: Leigh, Robert G.
name: Pai, Pin-Chun
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We revisit the problem of extending the phase space of diffeomorphism-invariant theories to account for embeddings associated with the boundary of sub-regions. We do so by emphasizing the importance of a careful treatment of embeddings in all aspects of the covariant phase space formalism. In so doing we introduce a new notion of the extension of field space associated with the embeddings which has the important feature that the Noether charges associated with all extended corner symmetries are in fact integrable, but not necessarily conserved. We give an intuitive understanding of this description. We then show that the charges give a representation of the extended corner symmetry via the Poisson bracket, without central extension.
description: 5 pages, published in PRL
Universal full-length nucleosome mapping sequence probe
Creators: name: Tripathi, Vijay
name: Salih, Bilal
name: Trifonov, Edward N.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: subject: 60506 Virology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Biological Sciences
subject: Ecology
subject: Chemistry
subject: Evolutionary Biology
subject: Genetics
subject: Physics
subject: Biochemistry
subject: Molecular Biology

description: For the computational sequence-directed mapping of the nucleosomes, the knowledge of the nucleosome positioning motifs – 10–11 base long sequences – and respective matrices of bendability, is not sufficient, since there is no justified way to fuse these motifs in one continuous nucleosome DNA sequence. Discovery of the strong nucleosome (SN) DNA sequences, with visible sequence periodicity allows derivation of the full-length nucleosome DNA bendability pattern as matrix or consensus sequence. The SN sequences of three species (A. thaliana, C. elegans, and H. sapiens) are aligned (512 sequences for each species), and long (115 dinucleotides) matrices of bendability derived for the species. The matrices have strong common property – alternation of runs of purine–purine (RR) and pyrimidine–pyrimidine (YY) dinucleotides, with average period 10.4 bases. On this basis the universal [R,Y] consensus of the nucleosome DNA sequence is derived, with exactly defined positions of respective penta- and hexamers RRRRR, RRRRRR, YYYYY, and YYYYYY.
Effetti di profondità e illusioni olografiche. Letteratura, teoria e borderline dopo il sospetto
Creators: name: Tirinanzi De Medici, Carlo
Publisher: name: Status Quaestionis
Year: 2024

description: This paper observes a transformation in the hermeneutic approach to literature, which today seems based on the refusal of the ambiguity of literary texts and of the very mediations used by twentieth-century literary theories to resolve such ambiguity. The new approach is defined “holographic” because the information is seen as fully available on the text’s surface, while the classic “school of suspect” as well as the classical allegorical hermeneutics, postulated a verticality of interpretation. To confirm such a hypothesis, I look at the contemporary narrative production and at the main contemporary literary theories (philology, cognitivist studies, identity studies). In the conclusions I propose to link such a holographic approach to hermeneutics, in particular for its refusal of ambiguity, to recent mass psychology hypotheses about a borderline condition of contemporary Western society.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
A new benzopyran derivative from Pseuduvaria indochinensis Merr.
Creators: name: Cai-Gui Zhao
name: Yao, Ming-Jun
name: Yang, Jin-Wei
name: Chai, Ya-Lin
name: Sun, Xiao-Dong
name: Cheng-Shan Yuan
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: From the twigs and leaves of Pseuduvaria indochinensis Merr., a new benzopyran derivative, pseudindochin (1), was isolated together with three known compounds, oligandrol (2), (6E,10E)-isopolycerasoidol (3) and polycerasoidol (4). The structure of compound 1 was elucidated on the basis of extensive spectroscopic data interpretation, including 1D, 2D NMR, HR-ESI-MS, UV and IR. Moreover, compounds 1–4 were evaluated in vitro for their cytotoxic activities against HL-60 and SMMC-7721 cell lines, but these compounds were essentially non-cytotoxic (IC50>30 μg/mL).
A Recommender System-Inspired Cloud Data Filling Scheme for Satellite-based Coastal Observation
Creators: name: Wang, Ruo-Qian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Filling missing data in cloud-covered areas of satellite imaging is an important task to improve data quantity and quality for enhanced earth observation. Traditional cloud filling studies focused on continuous numerical data such as temperature and cyanobacterial concentration in the open ocean. Cloud data filling issues in coastal imaging is far less studied because of the complex landscape. Inspired by the success of data imputation methods in recommender systems that are designed for online shopping, the present study explored their application to satellite cloud data filling tasks. A numerical experiment was designed and conducted for a LandSat dataset with a range of synthetic cloud covers to examine the performance of different data filling schemes. The recommender system-inspired matrix factorization algorithm called Funk-SVD showed superior performance in computational accuracy and efficiency for the task of recovering landscape types in a complex coastal area than the traditional data filling scheme of DINEOF (Data Interpolating Empirical Orthogonal Functions) and the deep learning method of Datawig. The new method achieved the best filling accuracy and reached a speed comparable to DINEOF and much faster than deep learning. A theoretical framework was created to analyze the error propagation in DINEOF and found the algorithm needs to be modified to converge to the ground truth. The present study showed that Funk-SVD has great potential to enhance cloud data filling performance and connects the fields of recommender systems and cloud filling to promote the improvement and sharing of useful algorithms.
Narrative Form and Negotiation in Cultural Narratology
Creators: name: Caracciolo, Marco
Publisher: name: Status Quaestionis
Year: 2024

description: This article offers an overview of discussions within cultural narratology. One of the basi assumptions of this strand of contemporary narratology is that form is closely bound up with ideology, since it guides – without determining completely – narrative’s engagement with ideas and issues circulating in society. Building on Luc Herman and Bart Vervaeck’s notion of narrative negotiation, I show how some of the basic forms of narrative (its temporal-causal organization, spatiality, and mediation through voice and focalization) carry important ideological ramifications. I exemplify this discussion by referring to a broad range of contemporary narratives (fictional and nonfictional) dealing with two defining crises of the present: migration and climate change.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
Per una mappa ‘quantistica’ delle teorie della lirica (2000-2023)
Creators: name: Bonasera, Carmen
Publisher: name: Status Quaestionis
Year: 2024

description: In the last twenty years, especially the USA and Germany, the theory of the lyric has progressively grown to be a prolific field of study, inspired by the urge of overcoming the perceived lack of an exhaustive definition of the “lyric”, as well as by the necessity of departing from the closely formalistic critical debates. The lyric has therefore received renewed attention from multiple outlooks: from post-classical narratology to (neuro)cognitive perspectives, from stylistics to affect studies, among others. While this renewed scholarly engagement has resulted in a plethora of critical contributions, these approaches have frequently clashed with each other, especially with regards to issues of genre delimitations, fictionality and performativity, thus depicting a fragmented but profoundly interrelated critical space. In this paper, I will offer a comprehensive survey of the most relevant theories of the lyric appeared in the last two decades outside of the Italian critical debate, while metaphorically drawing together the theory of the lyric and quantum theory, on the grounds of similar features of uncertainty, interdependence, and hermeneutic emphasis.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
Chemical composition of volatiles from Opuntia littoralisOpuntia ficus-indica, and Opuntia prolifera growing on Catalina Island, California
Creators: name: Setzer, William N.
name: Wright, Cynthia R.
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: The essential oils from the cladodes of Opuntia littoralis, Opuntia ficus-indica and Opuntia prolifera growing wild on Santa Catalina Island, California, were obtained by hydrodistillation and analysed by gas chromatography-mass spectrometry (GC–MS). Terpenoids were the dominant class of volatiles in O. littoralis, with the two main components being the furanoid forms of cis-linalool oxide (10.8%) and trans-linalool oxide (8.8%). Fatty acid-derived compounds dominated the essential oil of O. ficus-indica with linoleic acid (22.3%), palmitic acid (12.7%), lauric acid (10.5%) and myristic acid (4.2%) as major fatty acids. O. prolifera oil was composed of 46.6% alkanes and the primary hydrocarbon component was heptadecane (19.2%). Sixteen compounds were common to all the three Opuntia species.
Constraint-Based Hybrid Resiliency Mechanisms for Better Resource Utilization and Service Performance Quality in ASON SLA
Creators: name: Wondale, Kebede
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: In optical transport networks, contents of service level agreement (SLA) are not standardized yet. There is a general recommendation to include network resiliency mechanisms in SLA contracts by considering trade-off between resource utilization and service performance quality. This research work proposes two solutions to fulfil these trade-off requirements in network resiliency mechanisms. The first solution is employing a Routing and Wavelength Assignment (RWA) algorithm that can utilize network resources efficiently in Automatically Switched Optical Network (ASON) service provisioning. The research work conducts blocking probability and network availability comparison simulations for Shared Risk Group (SRG)-Disjoint Aware First-Fit Routing, Alternate Routing, Least Congested Routing and Load Sharing routing algorithms coordinated with First-Fit wavelength assignment algorithm in 1+1 Dedicated Path Protection (DPP) and Restoration schemes. The simulations performed on Net2Plan tool show that Alternate Routing algorithm has best overall results in blocking probability and network availability for both protection and restoration. The second solution is enhancing service performance qualities by combining protection and restoration. This research work proposes new constraint-based hybrid resiliency mechanisms (1+1 Link-Disjoint + Restoration, 1+1 Node-Disjoint + Restoration and 1+1 SRG-Disjoint + Restoration). The performance of these hybrid resiliency mechanisms is evaluated using Net2plan simulation tool. The results show that the network availability and recoverability performances are improved when it is compared to non-combined counter parts. 1+1 Node-Disjoint + Restoration shows best recoverability at lower traffic loads during link or SRG failures. At higher traffic loads, 1+1 SRG-Disjoint + Restoration performs best in recoverability during SRG failures. For instance, 1+1 SRG-Disjoint + Restoration has on average 16.8% higher recoverability than 1+1 Link-Disjoint + Restoration, at higher traffic loads. These performance enhancements are obtained with cost of relatively higher blocking probability.
Efficient Online Bayesian Inference for Neural Bandits
Creators: name: Duran-Martin, Gerardo
name: Kara, Aleyna
name: Murphy, Kevin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper we present a new algorithm for online (sequential) inference in Bayesian neural networks, and show its suitability for tackling contextual bandit problems. The key idea is to combine the extended Kalman filter (which locally linearizes the likelihood function at each time step) with a (learned or random) low-dimensional affine subspace for the parameters; the use of a subspace enables us to scale our algorithm to models with $\sim 1M$ parameters. While most other neural bandit methods need to store the entire past dataset in order to avoid the problem of "catastrophic forgetting", our approach uses constant memory. This is possible because we represent uncertainty about all the parameters in the model, not just the final linear layer. We show good results on the "Deep Bayesian Bandit Showdown" benchmark, as well as MNIST and a recommender system.
QoS Performance Evaluation of RWA Algorithms under Different Resilience Mechanisms: in the Case of EthioTelecom Backbone Network
Creators: name: Kedir, Yassin
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: For the past decades, data traffic demand considerably increased in volume and quality due to the advent of capable end-user devices and innovative data services. To accommodate the highly increasing data traffic volume and customer demand for service with better quality, an automatic switched optical network (ASON) with different routing and wavelength assignment (RWA) algorithms and resilience mechanisms are used. Previously different researchers evaluated performance of different resilience mechanisms and RWA algorithms separately by considering an ideal highly connected network with ideal uniform traffic demand/connection request. This issue can force telecom operators including Ethio-telecom to implement their backbone network based on vendor recommendation. In this thesis, first, performance of four adaptive RWA algorithms was evaluated considering blocking probability and average throughput as QoS metrics under different three resilience mechanisms considering a practical Ethio-telecom north circle backbone network topology and its traffic demand scenario. Secondly, performance of the three resilience mechanisms was evaluated under routing algorithm selected from routing algorithm evaluation considering blocking probability, recoverability and average network throughput as QoS performance metrics. Finally, network topology connectivity degree effect on the performance of 1+1 DPP and restoration resilience mechanisms was evaluated by randomly adding 30 unidirectional links to the reference network topology used in the above evaluations. To evaluate the RWA algorithms and resilience mechanisms, Net2Plan simulator is used. The result of the evaluations shows that, at low connected network topology, restoration with alternate routing has on average 40 % lower blocking probability, higher average throughput and lower recoverability as compared to the other resilience mechanisms combined with alternate routing. An increase in network connectivity by 0.9 decreases the blocking probability and average throughput advantage of restoration by 10%. So considering the possibility of improving the recoverability of the network by preparing a pool of restoration path prior to fault occurrence and its ability to protect against double link failure (DLF), restoration with alternate routing becomes more recommended for low connected network topologies at low traffic load. But for highly connected network topologies with high traffic load using either 1+1 DPP or hybrid becomes more recommended based on the need for DLF protection.
Comparison of the essential oil content and composition of the spathe, buds and pollen of Phoenix dactylifera
Creators: name: Mohamadi, Maryam
name: Tayebeh Shamspur
name: Mostafavi, Ali
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: Several medicinal applications have been reported for different components of date palm. The inflorescence of the male date tree is composed of spathe that surrounds many buds containing pollen. In this study, a comparison between the content and composition of the essential oils obtained from these three components of an inflorescence was made. After obtaining each oil using hydro-distillation method, the oil yield was measured as the weight ratio of the oil to the distilled sample (w/w %) and the chemical composition of the oil was determined by gas chromatography–mass spectrometry analysis. It was observed that the pollen possessed the most oil content (1.47%) composed of 68.04% oleic acid, whereas the content of this fatty acid in the spathe and bud oils was found to be less than 0.05% and 5.65%, respectively. Spathe oil was dominated by 3,4-dimethoxytoluene (52.90%) while the main constituent of the bud oil was trans-caryophyllene (44.20%).
A new benzopyran derivative from Pseuduvaria indochinensis Merr.
Creators: name: Cai-Gui Zhao
name: Yao, Ming-Jun
name: Yang, Jin-Wei
name: Chai, Ya-Lin
name: Sun, Xiao-Dong
name: Cheng-Shan Yuan
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: From the twigs and leaves of Pseuduvaria indochinensis Merr., a new benzopyran derivative, pseudindochin (1), was isolated together with three known compounds, oligandrol (2), (6E,10E)-isopolycerasoidol (3) and polycerasoidol (4). The structure of compound 1 was elucidated on the basis of extensive spectroscopic data interpretation, including 1D, 2D NMR, HR-ESI-MS, UV and IR. Moreover, compounds 1–4 were evaluated in vitro for their cytotoxic activities against HL-60 and SMMC-7721 cell lines, but these compounds were essentially non-cytotoxic (IC50>30 μg/mL).
Lyric Indifference and the Genre of the Person
Creators: name: Coase, Hal
Publisher: name: Status Quaestionis
Year: 2024

description: This paper reads Jackqueline Frost’s Young Americans and Ocean Vuong’s Time is a Mother as cases of indifference to and within lyric norms. This indifference is understood as amoment of relief from the identitarian specificity of apostrophic conventions. In Frost’s poetics, indifference is figured as a refusal of the assumption of personhood as the basis of politics. The limits and ironies of this poetics are traced in Vuong’s lyric sequences, where every body’s specificity, and every poem’s singularity, offer a way out from what Virginia Jackson has described as “the genre of the person”, with which the overdetermination of lyric reading has reified difference.
description: Status Quaestionis, N. 26 (2024): Teoria/Theory. Perspectives on Literary Criticism and Comparative Literature
Energy E cient Virtual Machine Placement Algorithms in OpenStack Neat
Creators: name: Fikru, Feleke
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Cloud computing provides a computing capability through the Internet. It enables organizations or individuals to have a computing power without deploying and maintaining their own Information Technology (IT) infrastructure. As a cloud is realized on a vast scale data-center, it consumes an enormous amount of energy. Several research have been conducted on consolidating Virtual Machines (VMs), logical computing machines that are hosted in servers, to minimize energy consumption. Among the proposed solutions OpenStack Neat is notable for its practicality. OpenStack Neat is an open-source VM consolidation framework that can seamlessly integrate to OpenStack, one of the most common and widely used open-source cloud management tool. The framework has components for deciding when to migrate VMs and selecting suitable hosts for the VMs (VM placement). The VM placement algorithm of OpenStack Neat is called Modi ed BestFit Decreasing (MBFD). MBFD is based on a heuristic that handles only minimizing the number of servers. The heuristic is not only less energy e cient but also increases Service Level Agreement (SLA) violation and consequently cause more VM migrations. To improve the energy e ciency, we propose VM placement algorithms based on both bin-packing heuristics and servers' power e ciency. In addition, we introduce a new binpacking heuristic called a Medium-Fit (MF) to reduce SLA violation and VM migrations. To evaluate the performance of the proposed algorithms we have conducted experiments using CloudSim on three cloud data-center scenarios: homogeneous, heterogeneous and default. The workloads that run in the data-center scenarios are generated from traces of PlanetLab and Bitbrains clouds. The results of the experiment show up-to 67% improvement in energy consumption and up-to 78% and 46% reduction in SLA violation and amount of VM migrations, respectively. Moreover, all improvements are statistically signi cant with signi cance level of 0.01.
The Apollo ATCA Design for the CMS Track Finder and the Pixel Readout at the HL-LHC
Creators: name: Albert, A.
name: Demiragli, Z.
name: Gastler, D.
name: Hahn, K.
name: Hazen, E.
name: Kotamnives, P.
name: Noorudhin, S.
name: Peck, A.
name: Rohlf, J.
name: Strohman, C.
name: Wittich, P.
name: Zou, R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The challenging conditions of the High-Luminosity LHC require tailored hardware designs for the trigger and data acquisition systems. The Apollo platform features a "Service Module" with a powerful system-on-module computer that provides standard ATCA communications and application-specific "Command Module"s with large FPGAs and high-speed optical fiber links. The CMS version of Apollo will be used for the track finder and the pixel readout. It features up to two large FPGAs and more than 100 optical links with speeds up to 25\,Gb/s. We study carefully the design and performance of the board by using customized firmware to test power consumption, heat dissipation, and optical link integrity. This paper presents the results of these performance tests, design updates, and future plans.
description: Submitted to JINST Proceedings for TWEPP 2021
title: Wo kein Richter, da kein Wähler?: Die Bedeutung des Rückbaus der Rechtsstaatlichkeit für die polnische Wahlrechtsreform
Creators: name: Wolski, Alina
Publisher: name: Fachinformationsdienst für internationale und interdisziplinäre Rechtsforschung
Year: 2020
Subjects: subject: 341

description: Völkerrechtsblog
Two new flavanonols from the bark of Akschindlium godefroyanum
Creators: name: Nattapong Chaipukdee
name: Somdej Kanokmedhakul
name: Ratsami Lekphrom
name: Kwanjai Kanokmedhakul
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: The first phytochemical investigation of the bark of Akschindlium godefroyanum (Kuntze) H. Ohashi (Fabaceae), a Thai herbal medicine, resulted in the isolation of two new flavanonols, 7,3′,5′-trihydroxy-5-methoxyflavanonol (1) and 7,4′-dihydroxy-5,3′-dimethoxyflavanonol (2), and eight known compounds comprising one flavonol, geraldol (3); three flavanonols, (+)-taxifolin (4), (+)-fustin (5) and aromadendrin 5-methyl ether (6); one catechin, (–)-epigallocatechin (7); one triterpenoid, lupeol (8); one steroid, stigmasterol (9) and one steroid glycoside, stigmasterol-3-O-β-d-glucoside (10). Their structures were identified by spectroscopic methods.
Two new flavanonols from the bark of Akschindlium godefroyanum
Creators: name: Nattapong Chaipukdee
name: Somdej Kanokmedhakul
name: Ratsami Lekphrom
name: Kwanjai Kanokmedhakul
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: The first phytochemical investigation of the bark of Akschindlium godefroyanum (Kuntze) H. Ohashi (Fabaceae), a Thai herbal medicine, resulted in the isolation of two new flavanonols, 7,3′,5′-trihydroxy-5-methoxyflavanonol (1) and 7,4′-dihydroxy-5,3′-dimethoxyflavanonol (2), and eight known compounds comprising one flavonol, geraldol (3); three flavanonols, (+)-taxifolin (4), (+)-fustin (5) and aromadendrin 5-methyl ether (6); one catechin, (–)-epigallocatechin (7); one triterpenoid, lupeol (8); one steroid, stigmasterol (9) and one steroid glycoside, stigmasterol-3-O-β-d-glucoside (10). Their structures were identified by spectroscopic methods.
Lattice models from CFT on surfaces with holes I: Torus partition function via two lattice cells
Creators: name: Brehm, Enrico M.
name: Runkel, Ingo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We construct a one-parameter family of lattice models starting from a two-dimensional rational conformal field theory on a torus with a regular lattice of holes, each of which is equipped with a conformal boundary condition. The lattice model is obtained by cutting the surface into triangles with clipped-off edges using open channel factorisation. The parameter is given by the hole radius. At finite radius, high energy states are suppressed and the model is effectively finite. In the zero-radius limit, it recovers the CFT amplitude exactly. In the touching hole limit, one obtains a topological field theory. If one chooses a special conformal boundary condition which we call "cloaking boundary condition", then for each value of the radius the fusion category of topological line defects of the CFT is contained in the lattice model. The fact that the full topological symmetry of the initial CFT is realised exactly is a key feature of our lattice models. We provide an explicit recursive procedure to evaluate the interaction vertex on arbitrary states. As an example, we study the lattice model obtained from the Ising CFT on a torus with one hole, decomposed into two lattice cells. We numerically compare the truncated lattice model to the CFT expression obtained from expanding the boundary state in terms of the hole radius and we find good agreement at intermediate values of the radius.
description: 69 pages, 25 figures, published version after minor revision
Comparison of the essential oil content and composition of the spathe, buds and pollen of Phoenix dactylifera
Creators: name: Mohamadi, Maryam
name: Tayebeh Shamspur
name: Mostafavi, Ali
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorised

description: Several medicinal applications have been reported for different components of date palm. The inflorescence of the male date tree is composed of spathe that surrounds many buds containing pollen. In this study, a comparison between the content and composition of the essential oils obtained from these three components of an inflorescence was made. After obtaining each oil using hydro-distillation method, the oil yield was measured as the weight ratio of the oil to the distilled sample (w/w %) and the chemical composition of the oil was determined by gas chromatography–mass spectrometry analysis. It was observed that the pollen possessed the most oil content (1.47%) composed of 68.04% oleic acid, whereas the content of this fatty acid in the spathe and bud oils was found to be less than 0.05% and 5.65%, respectively. Spathe oil was dominated by 3,4-dimethoxytoluene (52.90%) while the main constituent of the bud oil was trans-caryophyllene (44.20%).
Training Structured Neural Networks Through Manifold Identification and Variance Reduction
Creators: name: Huang, Zih-Syuan
name: Lee, Ching-pei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper proposes an algorithm (RMDA) for training neural networks (NNs) with a regularization term for promoting desired structures. RMDA does not incur computation additional to proximal SGD with momentum, and achieves variance reduction without requiring the objective function to be of the finite-sum form. Through the tool of manifold identification from nonlinear optimization, we prove that after a finite number of iterations, all iterates of RMDA possess a desired structure identical to that induced by the regularizer at the stationary point of asymptotic convergence, even in the presence of engineering tricks like data augmentation and dropout that complicate the training process. Experiments on training NNs with structured sparsity confirm that variance reduction is necessary for such an identification, and show that RMDA thus significantly outperforms existing methods for this task. For unstructured sparsity, RMDA also outperforms a state-of-the-art pruning method, validating the benefits of training structured NNs through regularization.
A new neo-clerodane diterpene from Ajuga decumbens
Creators: name: Huawei Lv
name: Jianguang Luo
name: Lingyi Kong
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: A new neo-clerodane diterpene, named ajugacumbin J (1), together with 13 known compounds (2–14) was isolated from Ajuga decumbens. The structure of ajugacumbin J (1) was elucidated by 1D and 2D NMR spectra and MS. Ajugacumbin J (1) and ajugacumbin D (5) exhibited inhibition of lipopolysaccharide-induced nitric oxide production in RAW 264.7 macrophages with an IC50 value of 46.2 and 35.9 μM, respectively.
Wissensvermittlung durch Gamification am Beispiel von spacelab_girls und exploreAT!
Creators: name: Palfinger, Thomas
name: Dorn, Amelie
name: Piringer, Barbara
Publisher: name: Zenodo
Year: 2019

description: Wissensvermittlung durch Gamification am Beispiel von spacelab_girls und exploreAT!
Learning-based personal speech enhancement for teleconferencing by exploiting spatial-spectral features
Creators: name: Hsu, Yicheng
name: Lee, Yonghan
name: Bai, Mingsian R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Teleconferencing is becoming essential during the COVID-19 pandemic. However, in real-world applications, speech quality can deteriorate due to, for example, background interference, noise, or reverberation. To solve this problem, target speech extraction from the mixture signals can be performed with the aid of the user's vocal features. Various features are accounted for in this study's proposed system, including speaker embeddings derived from user enrollment and a novel long-short-term spatial coherence feature pertaining to the target speaker activity. As a learning-based approach, a target speech sifting network was employed to extract the relevant features. The network trained with LSTSC in the proposed approach is robust to microphone array geometries and the number of microphones. Furthermore, the proposed enhancement system was compared with a baseline system with speaker embeddings and interchannel phase difference. The results demonstrated the superior performance of the proposed system over the baseline in enhancement performance and robustness.
description: accepted by ICASSP 2022
Thermoelectric properties of Sm-doped BiCuSeO oxyselenides fabricated by two-step reactive sintering
Creators: name: Novitskii, Andrei
name: Serhiienko, Illia
name: Novikov, Sergey
name: Kuskov, Kirill
name: Pankratova, Daria
name: Sviridova, Tatyana
name: Voronin, Andrei
name: Bogach, Aleksei
name: Skryleva, Elena
name: Parkhomenko, Yuriy
name: Burkov, Alexander
name: Mori, Takao
name: Khovaylo, Vladimir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Among layered oxygen-containing compounds, BiCuSeO is one of the most promising candidates for thermoelectric applications due to its intrinsically low thermal conductivity and good thermal stability. However, the rather poor electrical conductivity of pristine BiCuSeO hinders its potential. Further enhancement of the thermoelectric performance by single doping at Bi site is limited mainly due to dramatic decrease of carrier mobility. Thus, new strategies, such as dual doping or doping with variable-valence elements seem to be promising. Along with that, the development of a fast and scalable synthesis route is essential for the industrial-scale fabrication of thermoelectric materials. Hence, in this paper, Bi$_{1-x}$Sm$_{x}$CuSeO samples (0 $\leq$ $x$ $\leq$ 0.08) have been synthesized with a simple and scalable reactive sintering process. For comparison, Bi$_{1-x}$Sm$_{x}$CuSeO oxyselenides were also obtained by the conventional solid-state route. Our results highlight that, Sm for Bi substitution increases the electrical conductivity by 1.5 - 2 times and decreases the Seebeck coefficient by ~1.4 times at 873 K for both series. Overall, considering the increase of lattice thermal conductivity upon doping and not optimized power factor, the figure of merit $zT$ is reducing upon doping.
description: 9 pages, 4 figures, 2 tables; Supplemental information: 19 pages, 12 figures, 6 tables
Chemical constituents of essential oils from the leaves and stem barks of four Vietnamese species of Fissistigma (Annonaceae)
Creators: name: Thang, Tran D.
name: Luu, Hoang V.
name: Vo C. Dung
name: Nguyen N. Tuan
name: Nguyen H. Hung
name: Dai, Do N.
name: Isiaka A. Ogunwande
Publisher: name: Taylor & Francis
Year: 2014
Subjects: Uncategorized

description: Chemical profiles of essential oils from four Fissistigma species: Fissistigma bracteolatum Chatt., Fissistigma villosissimum Merr., Fissistigma latifolium (Dunal) Merr. and Fissistigma glaucescens (Hance) Merr. were analysed by gas chromatography–flame ionisation detector and gas chromatography–mass spectrometry. Fissistigma essential oils consist mainly of sesquiterpenes (48.7–83.8%), monoterpenes (3.2–30.9%) and fatty acids (0.5–33.4%). Data on the essential oil composition of F. villosissimum, F. latifolium and F. glaucescens are reported for the first time.
p-wave superconductivity in Luttinger semimetals
Creators: name: Link, Julia M.
name: Herbut, Igor F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the three-dimensional spin-orbit-coupled Luttinger semimetal of "spin" $3/2$ particles in presence of weak attractive interaction in the $l=1$ (p-wave) channel, and determine the low-temperature phase diagram for both particle- and hole-dopings. The phase diagram depends crucially on the sign of the chemical potential, with two different states (with total angular momentum $j=0$ and $j=3$) competing on the hole-doped side, and three (one $j=1$ and two different $j=2$) states on the particle-doped side. The ground state condensates of Cooper pairs with the total angular momentum $j=1,2,3$ are selected by the quartic, and even sextic terms in the Ginzburg-Landau free energy. Interestingly, we find that all the p-wave ground states that appear in the phase diagram, while displaying different patterns of reduction of the rotational symmetry, preserve the time reversal symmetry. The resulting quasiparticle spectrum is either fully gapped or with point nodes, with nodal lines being absent.
description: 19 pages, four figures