cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Haloaxonopsis Pešić & Smit & Saboori 2012, gen. nov.
Creators: name: Pešić, Vladimir
name: Smit, Harry
name: Saboori, Alireza
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Acari
Aturidae
Haloaxonopsis

description: Haloaxonopsis gen. nov.
 Diagnosis. Characters of the Aturidae and the subfamily Axonopsinae. Dorsal and ventral shields anteriorly fused; dorsal shield with seven pairs of glandularia and a pair of postocularia. Venter without a ridge on each side extending posteriorly from the region of insertion of the IV-L. Two pairs of glandularia lying between the genital field and insertions of the IV-L, relatively close together in male; posterior pair halfway between the fist pair of glandularia and genital field in female. Genital field with three pairs of so-called wheel-like acetabula; II-, III- and IV-L with swimming setae.
 Type species. Haloaxonopsis salina sp. nov.
 Etymology. Named for the salty environment where the type species was collected. The gender of the genus is feminine.
 Remarks. The presence of wheel-like acetabula is unique in Aturidae and will separate the new genus from all other members of this family. Until now, so-called wheel-like acetabula were found only in Pontarachnidae, a family of marine water mites. The term ‘wheel-like acetabula’ coined by Cook (1996) refers to the cuticular structure which is characterized by small radiating folds surrounding a cuticular depression, and as shown by Smit & Alberti (2009) these structures take part in osmoregulation. However, it was uncertain whether these structures are homologues of the acetabula of other freshwater mites (or Actinotrichida). Our findings support the supposed homology of acetabula and 'wheel-like acetabula'.
description: Published as part of Pešić, Vladimir, Smit, Harry & Saboori, Alireza, 2012, 3330, pp. 1-67 in Zootaxa 3330 on page 54
Drought amnesia: lessons from protected areas in the eastern Lowveld of South Africa
Creators: name: Peel, Mike JS
name: Smit, Izak P
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: Protected areas (PAs) adjacent to the Kruger National Park (KNP) are divided into fenced and unfenced properties. We discuss land-use development to provide context of how these savannas have evolved over the past century. Although the PAs have embraced the basic philosophies of the KNP management approach and have similar high-level objectives, they function at different spatial, and consequently temporal scales, largely because of fencing and the subsequent provision of water in these areas. We examine bottom up (environmental, rainfall) conditions using rainfall as a percentage of the mean and the Standard Precipitation Index (SPI) leading into five drought periods dating back to 1982/1983 and top-down drivers focusing on animal number and type (geo-referenced data from annual helicopter counts) on fenced versus areas open to the larger KNP system. We then examine the response variables, grass species composition, cover and standing crop (all using the Multiple Indicator Method) and the capacity of these to attain a variety of potential land use objectives. Using a dataset spanning some 30 years, we provide scenarios that offer an early warning system to managers irrespective of land use objectives and management approach (laissez-faire or active).
Global Value Chains, Large-Scale Farming, and Poverty: Long-Term Effects in Senegal
Creators: name: VAN DEN BROECK, Goedele
name: SWINNEN, Johan
name: MAERTENS, Miet
name: VAN DEN BROECK, Goedele
name: SWINNEN, Johan
name: MAERTENS, Miet
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Food Security and Poverty
subject: globalisation
subject: high-value supply chains
subject: rural wage employment
subject: quantile regression
subject: panel data
subject: long-term effects

description: This paper is the first to present panel data evidence on the longer-term impact of expansion of global value chains and large-scale export-oriented farms in developing countries. Using panel data from two survey rounds covering a seven-year period and fixed effects regression, we estimate the longer-term income effects of wage employment on large-scale farms in the rapidly expanding horticultural export sector in Senegal. In addition to estimating average income effects, we estimate heterogeneous income effects using fixed effects quantile regression. We find that poverty and inequality reduced much faster in the research area than elsewhere in Senegal. Employment in the horticultural export sector significantly increases household income and the income effect is strongest for the poorest households. Expansion of the horticultural export sector in Senegal has been particularly pro-poor through creating employment that is accessible and creates substantial income gains for the poorest half of the rural population. These pro-poor employment effects contrast with insights in the literature on increased inequality from rural wage employment.
description: An updated version of this working paper is published as: Van den Broeck, G., Swinnen, J., Maertens, M. (2017) Global Value Chains, Large-scale Farming, and Poverty: Long-term Effects in Senegal. Food Policy, 66: 97-107.
Sub-horizon Perturbation Behavior in Extended Quintessence
Creators: name: Perrotta, F.
name: Baccigalupi, C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the general context of scalar-tensor theories, we consider a model in which a scalar field coupled to the Ricci scalar in the gravitational sector of the Lagrangian, is also playing the role of an ``Extended Quintessence'' field, dominating the energy content of the Universe at the present time. In this framework, we study the linear evolution of the perturbations in the Quintessence energy density, showing that a new phenomenon, named here ``gravitational dragging'', can enhance the scalar field density perturbations as much as they reach the non-linear regime. The possibility of dark energy clumps formation is thus discussed.
description: Proceedings of the 5th International UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe (Dark Matter 2002), Marina del Rey, California, USA, 20-22 February 2002
A general graph-based framework for top-N recommendation using content, temporal and trust information
Creators: name: Nzeko'o, Armel Jacques Nzekon
name: Tchuente, Maurice
name: Latapy, Matthieu
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Recommending appropriate items to users is crucial in many e-commerce platforms that contain implicit data as users' browsing, purchasing and streaming history. One common approach consists in selecting the N most relevant items to each user, for a given N, which is called top-N recommendation. To do so, recommender systems rely on various kinds of information, like item and user features, past interest of users for items, browsing history and trust between users. However, they often use only one or two such pieces of information, which limits their performance. In this paper, we design and implement GraFC2T2, a general graph-based framework to easily combine and compare various kinds of side information for top-N recommendation. It encodes content-based features, temporal and trust information into a complex graph, and uses personalized PageRank on this graph to perform recommendation. We conduct experiments on Epinions and Ciao datasets, and compare obtained performances using F1-score, Hit ratio and MAP evaluation metrics, to systems based on matrix factorization and deep learning. This shows that our framework is convenient for such explorations, and that combining different kinds of information indeed improves recommendation in general.
description: 27 pages
Relationships between farmer perceptions and temporal variation in nutritive value of browse species on savanna rangelands
Creators: name: Mudzengi, Clarice P
name: Murwira, Amon
name: Tinyiko Halimani
name: Herve Fritz
name: Chrispen Murungweni
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: In livestock-based livelihoods of the developing world, determination of the nutritive value of browse species is mainly associated with farmer perceptions. Additionally, little is known on seasonal variation in nutritive value of these species in some areas. Therefore, chemical analysis is necessary to validate farmer nutritive value ranking, because this has implications on rangeland management. We compared farmer perceptions with chemically quantified crude protein, dry matter, acid detergent fibre (ADF), and dry organic matter digestibility (DOMD) of seven browse species. Crude protein and DOMD were higher in the wet season compared to the dry season. However, ADF was higher in the dry season. There was a strong negative correlation between acid detergent fibre and DOMD during the wet season (r = −0.631, p < 0.05). Positive, though non-significant correlations were observed between farmer perceptions of ‘most nutritious according to herder’ and CP (r = 0.29, p = 0.54), farmer perception of ‘most abundant species’ and DM (r = 0.13, p = 0.78), and between farmer perception of ‘highly preferred species by livestock’ and DOMD (r = 0.32, p = 0.48). Therefore, although farmer perceptions of nutritive value of browse species are important in strategic utilisation of rangelands, they should not replace chemical analysis, but should complement each other.
Distributed User Clustering and Resource Allocation for Imperfect NOMA in Heterogeneous Networks
Creators: name: Celik, Abdulkadir
name: Tsai, Ming-Cheng
name: Radaydeh, Redha M.
name: Al-Qahtani, Fawaz S.
name: Alouini, Mohamed-Slim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we propose a distributed cluster formation (CF) and resource allocation (RA) framework for non-ideal non-orthogonal multiple access (NOMA) schemes in heterogeneous networks. The imperfection of the underlying NOMA scheme is due to the receiver sensitivity and interference residue from non-ideal successive interference cancellation (SIC), which is generally characterized by a fractional error factor (FEF). Our analytical findings first show that several factors have a significant impact on the achievable NOMA gain. Then, we investigate fundamental limits on NOMA cluster size as a function of FEF levels, cluster bandwidth, and quality of service (QoS) demands of user equipments (UEs). Thereafter, a clustering algorithm is developed by taking feasible cluster size and channel gain disparity of UEs into account. Finally, we develop a distributed alpha-fair RA framework where alpha governs the trade-off between maximum throughput and proportional fairness objectives. Based on the derived closed-form optimal power levels, the proposed distributed solution iteratively updates bandwidths, clusters, and UEs' transmission powers. Numerical results demonstrate that proposed solutions deliver a higher spectral and energy efficiency than traditionally adopted basic NOMA cluster size of two. We also show that an imperfect NOMA cannot always provide better performance than orthogonal multiple access under certain conditions. Finally, our numerical investigations reveal that NOMA gain is maximized under downlink/uplink decoupled (DUDe) UE association.
Penicitrisochromans A-C, new isochromans from the marine-derived fungus Penicillium citrinum PSU-MF100
Creators: name: Thamsiri, Panthong
name: Rukachaisirikul, Vatcharin
name: Phongpaichit, Souwalak
name: Preedanon, Sita
name: Sakayaroj, Jariya
name: Muanprasat, Chatchai
name: Hadsadee, Sarinya
name: Jungsuttiwong, Siriporn
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology
subject: Virology

description: Three new isochroman derivatives, penicitrisochromans A-C (1-3), together with 25 known polyketides were isolated from the marine-derived fungus Penicillium citrinum PSU-MF100. Their structures were elucidated by extensive spectroscopic analysis. The absolute configurations of 1 and 2 were established by comparison of specific rotations and electronic circular dichroism (ECD) data with those of the known co-metabolite whereas those of 3 were assigned based on the ECD calculation and biosynthetic consideration. Among the isolated polyketides, three known anthraquinone derivatives, ω-hydroxyemodin, penicillanthranin A and emodin, displayed moderate to strong antibacterial activity against methicillin-resistant Staphylococcus aureus with MIC values of 32, 16 and 4 µg/mL, respectively. For antifungal activity, two known benzopyranones, coniochaetones A and C, exhibited moderate antifungal activity against Candida albicans NCPF3153 and Cryptococcus neoformans ATCC90112 with the respective MIC values of 16 and 64 µg/mL.
Moving Up or Moving Out? Insights on Rural Development and Poverty Reduction in Senegal
Creators: name: VAN DEN BROECK, Goedele
name: MAERTENS, Miet
name: VAN DEN BROECK, Goedele
name: MAERTENS, Miet
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Food Security and Poverty
subject: rural development
subject: poverty reduction
subject: globalisation
subject: foreign direct investment
subject: export supply chains
subject: Sub-Saharan Africa

description: In this paper we investigate livelihood and poverty dynamics in the Senegal River Delta area in Senegal over a period of seven years. We use household survey data from two panel rounds in 2006 and 2013 and a cluster analysis to reveal which livelihood strategies and development processes have been most important in poverty reduction. We find that income growth in the region was rather modest but poverty decreased much more rapidly than in Senegal and Sub- Saharan Africa in general. We find that moving out of agriculture into wage employment in horticultural export companies and local service sectors has by far been the most successful strategy to move out of poverty for rural households. The ongoing structural transformation process in the region, that has been triggered by the development of export chains and the creation of employment in these chains, contributed importantly to rural income growth and poverty reduction. Agricultural intensification and upgrading of domestic agri-food chains are lagging behind and have not been major driving forces of income growth and poverty reduction. Our results support the view that moving out of agriculture can be a valid pro-poor rural development strategy. Moving up in agriculture remains necessary for further poverty reduction in the Senegal River Delta.
description: An updated version of this working paper is published as: Van den Broeck, G., Maertens, M. (2017) Moving up or moving out? Insights into Rural Development and Poverty Reduction in Senegal. World Development 99: 95–109.
Proportional optimization forecasting analysis of photovoltaic and coal-fired power in 2050, China: the economic and environmental perspectives
Creators: name: Wang, Lu
name: Liu, Jiawen
name: Wang, Chenglong
name: Wang, Peng
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: To meet the targets of carbon emission reductions and mitigate climate change, Chinese government actively supports the development of photovoltaic power (PV). Assessing the feasibility of development model and the possibility to achieve carbon emission targets should firstly address the relationship of PV development compared to coal-fired power (CFP), this study evaluated economic and environmental effects of PV and CFP from life-cycle perspective and further forecasted the optimal proportions of PV replacing CFP in 2030 and 2050, considering land resources and energy demand changes. First, the levelized cost of energy (LCOE) of PV and CFP is 0.55–0.80 CNY/kWh and 0.40 CNY/kWh, respectively, while the carbon emission of PV was 91.95 g/kWh, much less than that of CFP (775.86 g/kWh). Second, ever-increasing carbon emission and total cost indicates replacing CFP with PV possesses great advantages for both economy and environment, while land limitations suggested PV cannot completely replace CFP. Third, to resolve the contradiction among these factors and contribute to sustainable development, this study, using learning curve and results of calculation, further worked out optimal ratio for PV and CFP which is stable at 55.21% and 44.79% during present stage, but 69.86% and 30.14% are suggested in 2050, separately.
Differential geometry of the Z_3-graded quantum superplane
Creators: name: Celik, Salih
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Algebra (math.QA)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 81R60 (Primary), 17B37 (Secondary)

description: In this work, differential geometry of the Z$_3$-graded quantum superplane is constructed. The corresponding quantum Lie superalgebra and its Hopf algebra structure are obtained.
description: 16 pages
BLOG: A journey of building communities and scaling infrastructure
Creators: name: Buys, Matthew
Publisher: name: ORCID
Year: 2019
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: It’s with a mixture of sadness and excitement that we announce Matt Buys, our Director of Engagement, will be leaving ORCID on October 11 to join our partner organization, DataCite, as their Executive Director. We will miss him enormously, but this is a wonderful opportunity for both him and DataCite.
The centrifugal force reversal and X-ray bursts
Creators: name: Abramowicz, M. A.
name: Kluzniak, W.
name: Lasota, J. -P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Heyl (2000) made an interesting suggestion that the observed shifts in QPO frequency in type I X-ray bursts could be influenced by the same geometrical effect of strong gravity as the one that causes centrifugal force reversal discovered by Abramowicz and Lasota (1974). However, his main result contains a sign error. Here we derive the correct formula and conclude that constraints on the M(R) relation for neutron stars deduced from the rotational-modulation model of QPO frequency shifts are of no practical interest because the correct formula implies a weak condition R* > 1.3 Rs, where Rs is the Schwarzschild radius. We also argue against the relevance of the rotational-modulation model to the observed frequency modulations.
description: 3 pages, Minor revisions, A&A Letters, in press
Chiral 2$π$-exchange NN-potentials: Relativistic $1/M^2$-Corrections
Creators: name: Kaiser, N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate in baryon chiral perturbation theory the relativistic $1/M^2$-corrections to the leading order two-pion exchange diagrams. We give explicit expressions for the corresponding one-loop NN-amplitudes in momentum space. The resulting isovector central and isoscalar spin-spin and tensor NN-amplitudes involve non-static terms proportional to the squared nucleon center-of-mass momentum $p^2$. From the two-pion exchange box diagrams we obtain an isoscalar quadratic spin-orbit NN-amplitude. We give also analytical expressions for the corresponding NN-potentials in coordinate space. The diagrammatic results presented here make the chiral NN-potential complete at next-to-next-to-next-to-leading order.
description: 6 pages, 3 figures, submitted to Physical Review C (Brief Reports)
Non-photochemical quenching, a non-invasive probe for monitoring microalgal grazing: an early indicator of predation by Oxyrrhis marina and Euplotes sp.
Creators: name: Pranali Deore
name: Anbarasu Karthikaichamy
name: Beardall, John
name: Noronha, Santosh
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Microalgae are major primary producers in aquatic environments, and many synthesize an array of industrially important biomolecules such as pigments, lipids and proteins. As a result, there is considerable interest in and effort into growing algae for industrial purposes. An economical method to produce a large amount of biomass is the use of the open-raceway pond cultivation platform. However, the nature of the cultivation and the nutrient-rich profile of such cultures attract contaminants such as zooplankton predators, which can result in a sudden culture crash. For effective pond management, an early indicator of grazer presence is needed to implement timely interventions. Currently available tools are offline, time-consuming and dependent on predator concentration. This study explores grazing-mediated changes in photosynthetic parameters during infestation of Dunaliella tertiolecta cultures by the heterotrophic dinoflagellate Oxyrrhis marina and the ciliate Euplotes sp. A significant reduction in non-photochemical quenching levels 24–48 h prior to the crash was observed in both bulk and single-cell prey samples. An increasing rate of grazer ingestion correlated with decreasing non-photochemical quenching levels as the culture progressed towards the crash. The reductions in the non-photochemical quenching levels were consistent in grazing cultures at different prey cell concentrations. Although the maximum photosynthetic yield remained unaltered, maximum relative electron transport rates were enhanced and the light-harvesting efficiency, alpha, reduced in comparison to controls. We suggest that, along with traditional methods, non-photochemical quenching monitoring could be used as a part of integrative pest management to minimize predator outbreaks.
Scattering theory of plasmon-assisted entanglement transfer and distillation
Creators: name: van Velsen, J. L.
name: Tworzydlo, J.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We analyse the quantum mechanical limits to the plasmon-assisted entanglement transfer observed by E. Altewischer, M.P. van Exter, and J.P. Woerdman [Nature, 418, 304 (2002)]. The maximal violation S of Bell's inequality at the photodetectors behind two linear media (such as the perforated metal films in the experiment) can be described by two ratio's tau_1, tau_2 of polarization-dependent transmission probabilities. A fully entangled incident state is transferred without degradation for tau_1=tau_2, but a relatively large mismatch of tau_1 and tau_2 can be tolerated with a small reduction of S. We predict that fully entangled Bell pairs can be distilled out of partially entangled radiation if tau_1 and tau_2 satisfy a pair of inequalities.
description: 4 pages including 2 figures; two references added, plasmon model included
The strong approximation theorem and computing with linear groups
Creators: name: Detinko, Alla
name: Flannery, Dane
name: Hulpke, Alexander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Group Theory (math.GR)
subject: Symbolic Computation (cs.SC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 20-04, 20G15, 20H25, 68W30

description: We obtain a computational realization of the strong approximation theorem. That is, we develop algorithms to compute all congruence quotients modulo rational primes of a finitely generated Zariski dense group $H \leq \mathrm{SL}(n, \mathbb{Z})$ for $n \geq 2$. More generally, we are able to compute all congruence quotients of a finitely generated Zariski dense subgroup of $\mathrm{SL}(n, \mathbb{Q})$ for $n > 2$.
Silver Nanostructures on Graphene Oxide as the Substrate for Surface-Enhanced Raman Scattering (SERS)
Creators: name: Zhang, Ying
name: Zhou, Hao
name: Shen, Qi
name: Shao, Zhouwei
name: Xu, Lin
name: Luo, Zhimin
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Nanosized surface-enhanced Raman scattering (SERS) substrates fabricated by the controlled growth of metal nanostructures on water-dispersed two-dimensional nanomaterials can open a new avenue for SERS analysis of liquid samples in biological fields. In this work, regular and uniform Ag nanostructures were grown on the surface of graphene oxide (GO) through a microwave-assisted hydrothermal method. Polyamidoamine (PAMAM) dendrimers were assembled on the surface of GO to form GO/PAMAM templates for growing Ag nanostructures, which are primarily comprised of Ag dimers and trimers. The prepared Ag/GO nanocomposites are highly dispersed and stable in aqueous solution and may be used as substrates for enhanced Raman detection of rhodamine 6 G (R6G) in aqueous solution. This special substrate provides high-performance SERS and suppresses R6G fluorescence in aqueous solution and is promising as a nanosized material for the enhanced Raman detection of liquid samples in biological diagnostics.
A Search for CO Absorption in the Transmission Spectrum of HD 209458b
Creators: name: Brown, Timothy M.
name: Libbrecht, Kenneth G.
name: Charbonneau, David
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We observed one transit of the extrasolar planet HD 209458b with the NIRSPEC spectrograph on the Keck II telescope. Using time series of low-noise observations in the wavelength range 2.0 micron to 2.5 micron, we searched for extra absorption from the 1st overtone rotation-vibration band of CO near 2.3 micron. This was not detected, with a detection limit that fails to test simple models of the planetary atmosphere by a factor of about 3. Great improvements in the detectability of the CO spectrum features could be realized by observing a transit that is centered near stellar meridian passage, and in better weather. Since it appears that similar observations taken under better circumstances might succeed, we describe our analysis procedures in detail.
description: 22 pages, 2 figures
The need for active region disconnection in 3D kinematic dynamo simulations
Creators: name: Whitbread, T.
name: Yeates, A. R.
name: Muñoz-Jaramillo, A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we address a discrepancy between the surface flux evolution in a 3D kinematic dynamo model and a 2D surface flux transport model that has been closely calibrated to the real Sun. We demonstrate that the difference is due to the connectivity of active regions to the toroidal field at the base of the convection zone, which is not accounted for in the surface-only model. Initially, we consider the decay of a single active region, firstly in a simplified Cartesian 2D model and subsequently the full 3D model. By varying the turbulent diffusivity profile in the convection zone, we find that increasing the diffusivity - so that active regions are more rapidly disconnected from the base of the convection zone - improves the evolution of the surface field. However, if we simulate a full solar cycle, we find that the dynamo is unable to sustain itself under such an enhanced diffusivity. This suggests that in order to accurately model the solar cycle, we must find an alternative way to disconnect emerging active regions, whilst conserving magnetic flux.
description: 10 pages, 13 figures, accepted for publication in A&A
Synthesis of novel, DNA binding heterocyclic dehydroabietylamine derivatives as potential antiproliferative and apoptosis-inducing agents
Creators: name: Zhao, Fengyi
name: Sun, Xu
name: Lu, Wen
name: Xu, Li
name: Shi, Jiuzhou
name: Yang, Shilong
name: Zhou, Mengyi
name: Su, Fan
name: Lin, Feng
name: Cao, Fuliang
Publisher: name: Taylor & Francis
Year: 2020
Subjects: Biochemistry
Cell Biology
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer

description: Several dehydroabietylamine derivatives containing heterocyclic moieties such as thiophene and pyrazine ring were successfully synthesized. The antiproliferative activities of these thiophene-based Schiff-bases, thiophene amides, and pyrazine amides were investigated in vitro against Hela (cervix), MCF-7 (breast), A549 (lung), HepG2 (liver), and HUVEC (umbilical vein) cells by MTT assay. The toxicity of L1−L10 (IC50 = 5.92− >100 μM) was lower than L0 (1.27 μM) and DOX (4.40 μM) in every case. Compound L1 had higher anti-HepG2 (0.66 μM), anti-MCF-7 (5.33 μM), and anti-A549 (2.11 μM) and compound L3 had higher anti-HepG2 (1.63 μM) and anti-MCF-7 (2.65 μM) activities. Both of these compounds were recognized with high efficiency in apoptosis induction in HepG2 cells and intercalated binding modes with DNA. Moreover, with average IC50 values of 0.66 and 5.98 μM, L1 was nine times more effective at suppressing cultured HepG2 cells viability than normal cells (SI = 9). The relative tumor proliferation rate (T/C) was 38.6%, the tumor inhibition rate was up to 61.2%, which indicated that L1 had no significant toxicity but high anti-HepG2 activity in vivo. Thus, it may be a potential antiproliferation drug with nontoxic side effects.
Thienemannimyia Fittkau 1957
Creators: name: Namayandeh, Armin
name: Bilyj, Bohdan
name: Beresford, David V.
name: Somers, Keith M.
name: Dillon, Peter J.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Thienemannimyia

description: Thienemannimyia group
 Group diagnosis. Head with ventral hypostomal groove present; ventral cephalic setae S9, S10 generally arranged as in Fig. 2E, S 9 is long and simple, S10 shorter either bifid or trifid, SSm shorter than the previous two and multibranched; maxillary palp with 7 stylets of which sensillum b may be 2 or 3-segmented, RO in distal third; head/ antennal length ratio about 2.2, AR 3.4–5.2; mandibles curved with generally weak inner teeth; M appendage with pseudoradula possessing distinct granulation; dorsomentum with two teeth pointed medially; ligula with 5 teeth with inner laterals usually out-turned; abdomen with scattered simple hairs at least half the subtending segments; procercus L/W 3–4, with 7 apical hairs; anal tubules elongate tapering; posterior parapod with 15 regular sized claws, of which 5 are relatively broad and darker than the rest plus one tiny pale claw.
 Notes. Fourth instar larva is required to identify to genera. A detailed diagnosis for each genus within the group is given by Fittkau and Roback (1983). Four species belonging to the genera Hayesomyia, Meropelopia, and Thienemannimyia are diagnosed below.
description: Published as part of Namayandeh, Armin, Bilyj, Bohdan, Beresford, David V., Somers, Keith M. & Dillon, Peter J., 2012, 3324, pp. 1-65 in Zootaxa 3324 on page 7
Equations of low-degree Projective Surfaces with three-divisible Sets of Cusps
Creators: name: Barth, Wolf P.
name: Rams, Slawomir
Publisher: name: arXiv
Year: 2001
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J25, 14J17

description: Let Y be a surface with only finitely many singularities all of which are cusps. A set of cusps on Y is called three-divisible, if there is a cyclic global triple cover of Y branched precisely over these cusps. The aim of this note is to determine the equations of surfaces $Y \subset P_3$ of degrees $\leq 6$ carrying a minimal, non-empty, three-divisible set.
description: 13 pages; a discussion of the family of quintics with 12 three-divisible cusps added
Non-photochemical quenching, a non-invasive probe for monitoring microalgal grazing: influence of grazing-mediated total ammonia-nitrogen
Creators: name: Pranali Deore
name: Beardall, John
name: Noronha, Santosh
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Contaminant invasion is one of the risks associated with microalgal cultivation in open raceway ponds, and the presence of zooplankton predators often results in a pond culture crash. For effective pond management, an early grazer-detection tool is needed to implement timely interventions. Microalgae and their predators co-exist in the pelagic food web and microalgal prey species have evolved to detect and mount physiological responses against the predator. However, algal prey-predator interactions in mass cultivation are poorly understood. This study aimed to understand the causal relationship between prey photosynthetic physiology, particularly non-photochemical quenching (NPQ), and predator infestation. We used the high biomass and glycerol-accumulating green algal species Dunaliella tertiolecta and the dinoflagellate Oxyrrhis marina as the prey and predator, respectively. Measurement of photosynthetic parameters suggests that NPQ levels significantly drop in the grazing culture, which may be related to increased total ammonia-nitrogen (TAN) accumulation by prey cells. This study suggests using an integrated approach by using NPQ and TAN measurements for early detection of predator infestation.
Ammophila striata MOCSARY
Creators: name: Dollfuss, H.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Ammophila
Ammophila striata

description: Ammophila striata MOCSÁRY (Figs 65, 94, 129, 159)
 Ammophila striata MOCSÁRY 1878: 200, ♀. Holotype, ♀, Russia: Siberia: no specific locality (TMB), examined.
M a t e r i a l e x a m i n e d: Holotype ♀ (TMB).
 R e c o g n i t i o n The female of Ammophila striata has the gastral apex black without distinct metallic shine, the episternal sulcus extending to the anteroventral margin of the pleuron, the arolia distinctly and the claws without basal tooth. The female of A. sinensis differs from A. striata in having the mesothoracic venter anteriorly distinctly prominent, with a transverse carina that forms one projection on each side.
D e s c r i p t i o n ♀: 23 mm. Black except tergum I (except basally), gastral segment II and basal half of III red. Clypeus, frons, pronotal lobe, mesopleuron along mesopleural suture and propodeum posterolaterally covered with appressed silvery setae; erect setae on head and foreleg brownish, on remaning areas white. Clypeus slightly elongate, median lobe laterally delimited by small teeth (Fig. 65), disk flat ventrally, distinctly convex and coarsely punctate dorsally (Fig. 94). Pronotal collar transversely ridged and punctate dorsally (Fig. 129), scutum coarsely punctate and transversely ridged, with distinct admedian line; scutellum longitudinally ridged and punctate. Propodeal enclosure irregularly rugose and covered with erect setae medially, coarsely ridged and glabrous laterally. Mesopleuron coarsely punctato-rugose, mesothoracic venter not distinctly prominent anteriorly, but delimited by carina for reception of forecoxa in deep, semicircular concavity. Pronotum laterally: Fig. 159. Flagellomere I: II=2.0; length of petiole = hindtarsomeres I+II.
 3 (Gussakovskij 1930: 204): 19.5 mm. "Male of A. striata: gastral apex with blackbluish shine. Following red: tergum I and gastral segment II (both with black dorsal stripe). Clypeus, frons and pronotal lobe covered with appressed silvery setae; erect setae on gena darkened, on remaning areas white. Pronotal collar transversely ridged, scutum distinctly transversely ridged, obliquely rugose-striate and punctate on posterior half. Mesopleuron and mesothoracic venter coriaceous, sparsely punctate, not at all transversely ridged; scutellum longitudinally ridged. Propodeal enclosure irregularly sculptured. Flagellomere I: II=2; petiole as long as tergum I. "Maybe this male does not actually belong to A. striata. Further research should be conducted.
G e o g r a p h i c a l d i s t r i b u t i o n: Turkey, Russia, Kazakhstan.
description: Published as part of Dollfuss, H., 2013, Revision of the Wasps Genus Ammophila KIRBY 1798 (Hymenoptera Apoidea Sphecidae) of the Palearctic Region and India, pp. 383-564 in Linzer biologische Beiträge 45 (1) on page 491, DOI: 10.5281/zenodo.5341134
Hyperon-nucleon scattering and hyperon masses in the nuclear medium
Creators: name: Korpa, C. L.
name: Dieperink, A. E. L.
name: Timmermans, R. G. E.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze low-energy hyperon-nucleon scattering using an effective field theory in next-to-leading order. By fitting experimental cross sections for laboratory hyperon momenta below 200 MeV/c and using information from the hypertriton we determine twelve contact-interaction coefficients. Based on these we discuss the low-density expansion of hyperon mass shifts in the nuclear medium.
description: 10 pages, 2 figures
Ammophila striata subsp. nadigi ROTH
Creators: name: Dollfuss, H.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Ammophila
Ammophila striata
Ammophila striata nadigi roth

description: Ammophila striata nadigi ROTH
 Ammophila nadigi ROTH 1932: 82, ♀. Holotype: ♀, Morocco: Ifran (A. Nadig coll.), not examined.
M a t e r i a l e x a m i n e d:None.
R e c o g n i t i o n DE BEAUMONT 1960: 5: "Ces individus de la Méditerranéeoccidentale se distinguent de ceux de la race typique par leur taille plus grande (27-30 mm) et par la partie antérieure du clypéus de la ♀ plus nettement concave."Further research should be conducted.
G e o g r a p h i c a l d i s t r i b u t i o n: Morocco, Spain.
description: Published as part of Dollfuss, H., 2013, Revision of the Wasps Genus Ammophila KIRBY 1798 (Hymenoptera Apoidea Sphecidae) of the Palearctic Region and India, pp. 383-564 in Linzer biologische Beiträge 45 (1) on page 491, DOI: 10.5281/zenodo.5341134
Podpora informační gramotnosti v bakalářském studiu: zkušenosti FF UK
Creators: name: Jarolímková, Adéla
Publisher: name: AKVŠ ČR
Year: 2024
Subjects: BA2024

description: Prezentováno na konferenci Bibliotheca academica 2024.
description: Příspěvek představí pětileté zkušenosti s e-learningovým kurzem Proseminář akademické práce, který je povinnou součástí všech nově akreditovaných bakalářských studijních programů na Filozofické fakultě UK, a jehož významná část se zaměřuje na podporu informační gramotnosti studentů, a sice vyhledávání a posuzování informací, využívání různorodých informačních zdrojů, citační a publikační etiku. Zhodnotí silné a slabé stránky této formy výuky v heterogenním prostředí Filozofické fakulty a popíše výhled do budoucna.
Feasibility of farming the agarose-yielding red alga Gracilaria dura using tube-net cultivation in the open sea along the Gujarat coast of NW India
Creators: name: Vaibhav A. Mantri
name: Yashesh Shah
name: S. Thiruppathi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Despite some perceptions of economic risk, the global aquaculture industry continues to attract new entrepreneurs and investors. However, to sustain this trend, innovative and cost-effective strategies are needed. In recent years, algal farming has been shown to be a sustainable activity in the global Blue Economy. In 2015, harvests of the red algal agarophyte genus Gracilaria surged to over 114,100 tons dry weight which constituted ca. 91% of the total raw material for industrial agar production. We carried out a trial of experimental farming of the agar-yielding alga known as Gracilaria dura using a tube-net method along the Gujarat coast, India. The mean daily growth rate (DGR) of this agarophyte ranged from 1.88 ± 0.23% day−1 to 3.30 ± 0.25% day−1. Similarly, the mean yield varied between 0.62 ± 0.03 kg and 1.05 ± 0.02 kg fresh wt m−1 of tube-net. A Pearson correlation showed that both DGR and biomass yield were positively correlated with temperature. In addition, the DGR was significantly positively correlated with air temperature (r = 0.916; p r = 0.986; p G. dura in Indian waters could diversify the livelihood of artisanal, coastal fishermen and further encourage the indigenous production of agarose.
Asymptotic behaviour of Christoffel-Darboux kernel via three-term recurrence relation I
Creators: name: Świderski, Grzegorz
name: Trojan, Bartosz
Publisher: name: arXiv
Year: 2019
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary: 42C05, 47B36

description: For Jacobi parameters belonging to one of the three classes: asymptotically periodic, periodically modulated and the blend of these two, we study the asymptotic behavior of the Christoffel functions and the scaling limits of the Christoffel-Darboux kernel. We assume regularity of Jacobi parameters in terms of the Stolz class. We emphasize that the first class only gives rise to measures with compact supports.
description: 47 pages
Resultados suplementarios
Creators: name: Abreu, Ana
name: Tonatiuh Barrientos-Gutierrez
name: Rojas-Martínez, Rosalba
name: Aguilar-Salinas, Carlos
name: López-Olmedo, Nancy
name: Cruz-Góngora, Vanessa De La
name: Rivera, Juan A.
name: Levy, Teresa Shamah
name: Romero-Martinez, Martin
name: Barquera, Simon
name: Lopez-Ridaura, Ruy
name: Hernández-Ávila, Mauricio
name: Villalpando, Salvador
Publisher: name: figshare
Year: 2019
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Supplementary results to the article
"Prevalence of diabetes and poor glycemic control in Mexico: results from ENSANUT 2016".
Hayesomyia senata
Creators: name: Namayandeh, Armin
name: Bilyj, Bohdan
name: Beresford, David V.
name: Somers, Keith M.
name: Dillon, Peter J.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Hayesomyia
Hayesomyia senata

description: Hayesomyia senata (Walley)
Figs 2A–F
 Diagnosis. Head generally pale with a darkened posterior margin, gular sclerite pale; maxillary palp (Fig. 2A) with 2-segmented sensillum b; antenna as in Fig. 2B, basal antennal segment 256–276 µm long, 1.9–2.1x as long as mandible, 2 nd segment 45–49 µm long, AR 4.3–4.6; mandible (Fig. 2C) with small but distinct accessory tooth; pseudoradula slightly tapering to broader base with 8–10 rows (at midpoint) of fine to coarse granules, wavy lines near base; ligula (fig. 2D) with concave toothed margin, inner laterals distinctly out-turned; ventral cephalic setae and VP as in Fig. 2E; body with scattered setae about half as long as subtending segment. Posterior end of abdomen as in Fig. 2F.
 Notes. The larva of H. senata is difficult to separate from larvae belonging to Thienemannimyia norena (Roback) and Thienemannimyia barberi (Coquillett). All three have ARs below 5.0, a character that Epler (2001) used in part to separate the two genera. In T. barberi the length of antennal segment 2 is in the range of 50–54 µm, close to H. senata 43–50 µm. In T. norena the length is 37–41 µm. The only other Nearctic Thienemannimyia, Thienemannimyia fusciceps (Edwards) has an AR> 5.0. However, according to M. Bolton (pers. comm.) there is overlap in all characters used in the diagnosis of H. senata and T. norena, and possibly T. barberi and only the developing thoracic horn in pupating larvae will separate the species. If that is the case then species assignment above should be considered tentative. Only one species of Hayesomyia is known from the Nearctic region.
 Ecology and habitat. In this study the larvae were mainly found in moss. It is noted by Hudson et al. (1990) that they generally occurs in large rivers and based on Roback (1981) species occur mainly in hard-water streams with pH 7.1–8.0 and water temperature of 19–28°C. All the study streams are soft-water with pH 5.5–6.92 and temperature never exceeds 16°C.
 Sampling sites. We found the larvae inhabiting streams in all the provincial parks and districts located in our study area.
 Nearctic distribution. Canada: Alberta, New Brunswick, Nova Scotia, Ontario, Québec, Saskatchewan. USA: California, Florida, Georgia, Illinois, Iowa, Kansas, Michigan, Minnesota, New Jersey, New York, Rode Island, South Dakota, Washington.
description: Published as part of Namayandeh, Armin, Bilyj, Bohdan, Beresford, David V., Somers, Keith M. & Dillon, Peter J., 2012, 3324, pp. 1-65 in Zootaxa 3324 on pages 7-9
Transport properties of 1D disordered models: a novel approach
Creators: name: Dossetti-Romero, V.
name: Izrailev, F. M.
name: Krokhin, A. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: A new method is developed for the study of transport properties of 1D models with random potentials. It is based on an exact transformation that reduces discrete Schrödinger equation in the tight-binding model to a two-dimensional Hamiltonian map. This map describes the behavior of a classical linear oscillator under random parametric delta-kicks. We are interested in the statistical properties of the transmission coefficient $T_L$ of a disordered sample of length $L$. In the ballistic regime we derive expressions for the mean value of the transmission coefficient $T_L$, its second moment and variance, that are more accurate than the existing ones. In the localized regime we analyze the global characteristics of $\ln T_L$, and demonstrate that its distribution function approaches the Gaussian form if $L\to \infty$. For any finite $L$ there are deviations from the Gaussian law that originate from the subtle correlation effects between different trajectories of the Hamiltonian map.
description: RevTex, 8 pages, 4 EPS-figures, corrected format