cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LIMA BEAN (PHA5 US LUNATUS) PRODUCTION AND DISEASE RESISTANCE TRIALS IN JAMAICA
Creators: name: Suah, J.R.R.
name: Schoneweis, S.D.
name: Erickson, H.T.
name: Suah, J.R.R.
name: Schoneweis, S.D.
name: Erickson, H.T.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Lima bean, an important grain legume in the Caribbean and Central America region has never been produced to meet demand. The main causes for this are low producing types and diseases. An attempt was made to test F hybrids for hybrid vigour. The plants were destroyed by the bean golden mosaic virus disease. A next trial was established to evaluate some selections from Jamaica showing a high degree of resistance to the disease, along with others from Africa, Brazil, Central America and the U.S.A. All succumbed to the disease. The paper also describes the bean vegetative propagation method and list the selections tested.
Zwei cromerzeitliche Artefakt-Fundplätze in der Jüngeren Hauptterrasse am Niederrhein
Creators: name: Schmude, Klaus
Publisher: name: Geozon Science Media
Year: 1992

description: In zwei aus den Flußterrassen des Rheines fördernden Sand- und Kiesgruben fanden sich Stein-Artefakte, in der Mehrzahl abgerollt: sie sind überwiegend aus Varianten von Quarzit und quarzitischem Sandstein hergestellt, einige aus Quarz oder Flint. Die Betriebe, Weeze und Kirchhellen, fördern Sand und Kies aus der Hauptterasse 3 im ersten und der Hauptterrasse 1 im zweiten Fall. Die paläomagnetische Matuyama-Brunhes-Grenze befindet sich im oberen Teil der Hauptterrasse 3. Daher sind Sedimente und Artefakte in beiden Kiesgruben älter als ca. 700 000 Jahre. Die Oberflächen der überwiegend abgerollten und/oder patinierten Artefakte (kein Windschliff) weisen den gleichen Schliff und Färbung wie die Gerölle des Kieses auf. Sowohl auf den Geröllhalden als auch auf den Abbauflächen wurde gesammelt. In der Kiesgrube Kirchhellen wurden zwei Artefakte aus der Schicht geborgen. Nach den heutigen Vorstellungen fand die Bildung der Jüngeren Hauptterrassen zwischen 0,6 und 1,6 Millionen Jahren statt, je nach Interpretation der paläomagnetischen Meßergebnisse sowie nach der schwermineralanalytischen Verknüpfung der Terrassenkörper. Das Inventar der Artefakte umfaßt Bifaces, Trieder, Pics, Cleaver, Chopper /Chopping Tools, Polyeder, Abschläge und Kerne. Größere Gerolle sind selten; dies mag die Seltenheit von großen Abschlägen, die in Inventaren des Mittelmeerraumes zur Herstellung von Faustkeilen und Cleavern dienten, erklären. Ein unbekannter Prozentsatz von Quarz- und Flint-Artefakten dürfte bis zur Unkenntlichkeit verändert worden sein; dasselbe dürfte auf die Kleingeräte zutreffen. Bedauerlicherweise gibt es in beiden Kiesgruben keine Faunenreste. Die Inventare sind selbst mit ihrer begrenzten und durch die Fundbedingungen selektierten Artefaktzahl bemerkenswert. Man kann ihr Vorkommen im gleichen Rahmen wie die Fundstücke der älteren Schichten von Mülheim-Kärlich sowie dem Koblenzer Raum sehen. Im Unterschied zu diesen enthalten sie jedoch typische Geräte, welche Aussagen zu ihrer Position in Technik und Zeit erlauben. Sie dürften dem frühen Cromer-Komplex angehören. Der kulturelle Rahmen muß im frühesten Beginn der europäischen Faustkeilkultur, früher auch Abbevillien, heute als Früh-Acheuléen, Alt-Acheuléen oder Proto-Acheuléen bezeichnet, gesehen werden.
description: research
Instanton induced quark dynamics and the pentaquark
Creators: name: Kochelev, N. I.
name: Lee, H. -J.
name: Vento, V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the existence of the exotic $Θ^+$ from the perspective of instanton induced quark dynamics. The 't Hooft interaction gives strong attraction in specific channels of the triquark $ud\bar s$ and diquark $ud$ configurations. In particular it leads to a light $ud\bar s$ triquark cluster, with the mass around $750 {\rm MeV}$, in the I=0, $S=1/2$ and color 3 configuration, and a light $ud$-diquark configuration, with mass $440 {\rm MeV}$, in the I=0, S=0 and color {$\bar{3}$} configuration. If we consider the pentaquark as a bound state of such triquark and diquark configurations in a relative L=1 state we obtain good agreement with the data. The small width of $Θ^+$ has a natural explanation in this model.
description: 14 pages, 2 figures; added references, corrected typos
Über die Vegetationsentwicklung des Weichsel-Interstadials aus Hamburg-Bahrenfeld
Creators: name: Hallik, R.
name: Kubitzki, K.
Publisher: name: Geozon Science Media
Year: 1962

description: Eine interstadiale, aus Gyttja und Torfen aufgebaute Lagefolge, die mit dem aus Dänemark und Holland beschriebenen Brörup-Interstadial parallelisiert wird, wurde pollenanalytisch und z. T. hinsichtlich ihrer Makroflora untersucht. Danach ergibt sich der waldlose bis waldarme, durch Vorwalten von Zwergbirken und krautigen Pflanzen gekennzeichnete Abschnitt I und der Abschnitt II mit großer Bewaldungsdichte, in dem offenbar zunächst Birken und schließlich Kiefern und Fichten die Wälder beherrschten, während die lokale Moorvegetation ihr Gepräge durch das gleichzeitige Vorkommen von Zwergbirken und Bergkiefern erhielt, dessen pflanzengeographische Bedeutung gewürdigt wird.
description: research
Überlegungen zur Morphogenese des Norddeutschen Flachlandes, dargestellt am Beispiel des unteren Elbtales
Creators: name: Grimmel, Eckhard
Publisher: name: Geozon Science Media
Year: 1973

description: In Anlehnung an Henkel (1909, 1925), Jentzsch (1921), Wolff (1928), V. Bülow (1928), Louis (1936), Limanowski (1936), Richter (1937), Kádár (1963), Eissmann (1967) und Aseev (1968) wird ein Modell entwickelt, nach dem für die Reliefformung des Norddeutschen Flachlandes hauptsächlich subglaziäre Prozesse (Erosion und Sedimentation des Eises und seiner Schmelzwässer) verantwortlich gemacht werden. Die Erhaltung der Formen wird zurückgeführt auf einen Abbau des Eises in der Form des Niedertauens von Toteis bzw. Toteisgürteln. Aus dieser Hypothese wird abgeleitet, daß die Zahl der Endmoränen bzw. Eisrandlagen bei weitem kleiner ist als bisher noch angenommen wird. Da man nämlich nicht mit einem „oszillierend" sich zurückziehenden Eisrand rechnen darf, kann es auch keine „Rückzugsstaffeln" geben. Aus gestaffelt hintereinander auftretenden Höhenzügen läßt sich also keine zeitliche und räumliche Gliederung der Endphase einer Vereisung gewinnen. Die heute generell herrschende Meinung, die Urstromtäler seien als eisrandabhängige Schmelzwasserabflußbahnen sukzessiv entstanden, wird abgelehnt. Sie werden aufgefaßt als bevorzugte Zonen subglaziärer Erosion und Exaration (durch Schmelzwässer und Eis). Unter diesem Aspekt gesehen dürften die Urstromtäler einer Vereisung mehr oder weniger gleichzeitig entstanden sein. Daraus ergibt sich die Folgerung, daß sie genetisch nicht zu Eisrandlagen in Beziehung gesetzt werden können.
description: research
Mass and 3-metrics of non-negative scalar curvature
Creators: name: Bartnik, Robert
Publisher: name: arXiv
Year: 2003
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C99, 83C57

description: Physicists believe, with some justification, that there should be a correspondence between familiar properties of Newtonian gravity and properties of solutions of the Einstein equations. The Positive Mass Theorem (PMT), first proved over twenty years ago \cite{SchoenYau79b,Witten81}, is a remarkable testament to this faith. However, fundamental mathematical questions concerning mass in general relativity remain, associated with the definition and properties of quasi-local mass. Central themes are the structure of metrics with non-negative scalar curvature, and the role played by minimal area 2-spheres (black holes).
EFFECTS OF DIFFERENT SOWING DATES ON THE GROWTH AND DEVELOPMENT OF YAM BEAN (Pachyrhizus erosus URBAN)
Creators: name: Zinsou, C.
name: Venthou-Dumaine, A.
name: Zinsou, C.
name: Venthou-Dumaine, A.
Publisher: name: Unknown
Year: 1988
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: Growth patterns
subject: tuberization
subject: yield
subject: tropical legume

description: The effects of different sowing dates on the growth and development in yam bean (Pachyrhizus erosus Urban) were investigated with reference to the photoperiodic changes during the plant cycle. Whatever the sowing dates, tuberization was initiated between 4 and 6 weeks after sowing. Floral induction occurred under short days. When the whole cycle of the plant took place under short days, tuberization and flowering processes started at the same time. Plants under those conditions (October and December sowings) presented a reduced shoot due to the fact that tuber bulking competed with the development of the aerial parts. The cycle duration did not exceed 5 months. Plants which ran their vegetative phase under long days (May plants) delayed the tuber growth which occurred only after the development of a large and vigorous foliage resulting from vine production. The cycle duration could reach 8 to 9 months. February plants which began their cycle under short days but did not achieve it before going through the long day influence, presented successively short and long day pattern of development.
The Cauda Scale – Validation for Clinical Practice
Creators: name: Angus, Michelle
name: Berg, Andrew
name: Carrasco, Roberto
name: Horner, Daniel
name: Leach, John
name: Siddique, Irfan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Inorganic Chemistry
subject: Science Policy

description: Purpose: The purpose of this study was to validate the cauda scale (TCS) in an external population. TCS was proposed as a tool to be used to predict the likelihood of cauda equina compression. Methods: We analysed the presenting condition of consecutive patients attending the emergency department undergoing a magnetic resonance scan with a clinical suspicion of cauda equina syndrome (CES). The findings were graded according to TCS for those with and without radiological compression of the cauda equina. Logistic regression was applied to the data in accordance with the original paper. Results: Patients were included over a 14 month period (n = 313), subsequent imaging revealed CES compression in 34 cases and no CES compression in 279. The TCS proposed that small values meant a more likely diagnosis of CES, the data showed the opposite of this with the highest number of patients with CES scoring a maximal 9 on TCS (mildest symptoms). Conclusions: Our data suggests that TCS has potential limitations in identifying patients with CES and needs further work prior to implementation.
Multi-Wavelength Constraints on the Outflow Properties of the Extremely Bright Millisecond Radio Bursts from the Galactic Magnetar SGR 1935+2154
Creators: name: Yamasaki, Shotaro
name: Kashiyama, Kazumi
name: Murase, Kohta
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extremely bright coherent radio bursts with millisecond duration, reminiscent of cosmological fast radio bursts (FRBs), were co-detected with anomalously-hard X-ray bursts from a Galactic magnetar SGR 1935$+$2154. We investigate the possibility that the event was triggered by the magnetic energy injection inside the magnetosphere, thereby producing magnetically-trapped fireball (FB) and relativistic outflows simultaneously. The thermal component of the X-ray burst is consistent with a trapped FB with an average temperature of $\sim200$-$300$ keV and size of $\sim10^5$ cm. Meanwhile, the non-thermal component of the X-ray burst and the coherent radio burst may arise from relativistic outflows. We calculate the dynamical evolution of the outflow, launched with an energy budget of $10^{39}$-$10^{40}$ erg comparable to that for the trapped FB, for different initial baryon load $η$ and magnetization $σ_0$. If hard X-ray and radio bursts are both produced by the energy dissipation of the outflow, the outflow properties are constrained by combining the conditions for photon escape and the intrinsic timing offset $\lesssim10$ ms among radio and X-ray burst spikes. We show that the hard X-ray burst must be generated at $r_{\rm X}\gtrsim10^{8}$ cm from the magnetar, irrespective of the emission mechanism. Moreover, we find that the outflow quickly accelerates up to a Lorentz factor of $10^2\lesssimΓ\lesssim10^3$ by the time it reaches the edge of the magnetosphere and the dissipation occurs at $10^{12}$ cm $\lesssim r_{\rm radio,X}\lesssim10^{14}$ cm. Our results imply either extremely-clean ($η\gtrsim10^4$) or highly-magnetized ($σ_0\gtrsim10^3$) outflows, which might be consistent with the rarity of the phenomenon.
description: 13 pages, 6 figures, 1 table, MNRAS in press, updated to match the accepted version
COCONUT MITE AMD ITS NATURAL ENEMIES IN ST. VINCENT
Creators: name: Alam, M.M.
name: Alam, M.M.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Eriophyes guerreronis is a serious pest of coconuts in the Central and South America and the Caribbean. The pest attacks newly fertilized flowers and move under bracts surrounding nutlets. During early attack, the infested nuts show browning at the outer margins of the bracts. It gradually spreads and sometimes covers 2/3 of the nut surface. Heavily infested nuts are deformed, smaller in size with reduced kernel yield. In some areas, the losses may reach up to 50%. In St. Vincent, the pest is widely distributed in the island. Nuts on the first two bunches do not show external damage, but it increases progressively from bunch No. 3 onwards. It was also observed that nutlets on bunch No. 1 were always free of mites. A small number was observed on bunch No. 2, and from Nos. 3 to 7, the population increased rapidly. On older bunches, the number of mites was relatively lower, and this was due to the hard surface of nuts, which becomes unsuitable for pest feeding. Some coconut varieties are more susceptible to mite damage than others. In St. Vincent, on average 44% uuts of Jamaican Tall and 35% of Malayan Dwarf were damaged by the pest, showing that the former variety is more susceptible to mite damage. These observations are supported by other workers in Benin (Mariau, 1977) and In Togo, Sao Tome, Ivory Coast and Brazil (Mariau and Julia, 1979); who reported that Tall West African, the Yellow and Yellowgreen Malayan dwarf were more susceptible than Tall Malayan, Hybrid PB 121, Tall Tahitian and Red Cameroun dwarf. In this study, three species of parasitic fungi, Aspergillus sp., Mucor sp. and Trichophyton sp. were recorded attacking mites under bracts. In St. Lucia, in May 1984, the author recorded two species of Coccinellids (Stethorus sp. ?utiiis and Sukunahikona sp.) and a predatory thrips, Aleurodothrips fasciapennis. It is possible that further investigations in these and other Caribbean islands may provide additional natural enemies, some of which could be used for the control of coconut mite(s).
title: The effect of wheat cultivars on the growth performance and energy retention of broiler chickens
Creators: name: Pirgozliev, Vassil Radoslavov
Publisher: name: The Open University
Year: 2000

description: The nutritive values of twelve samples of different UK wheat cultivars from two different growing years were assessedA. serieso f chicken feeding experimentsw ere conducted to examine the relationships between chemical composition, grain quality and energy content of the wheat samples and the growth performance of broiler chickens when fed these wheat samples as part of nutritionally complete diets. The efficiency of utilization of apparent metabolisable energy (AMEn) of wheat samples as a source of net energy (NE) was studied. Step-wisc multiple regression analysis indicated that the content of total starch in the wheat samples and the arnylosea: mylopectin ratio in the starch were the main predictors of growth, feed intake and FCR of the broilers. Increasing starch and arnylose content in the wheat cultivar samples gave increasing weight and feed intakes. The Hagberg falling number was also significantly (P<0.05) positively related to broiler chicken growth and food intakes. Two further experiments indicated that there was a growth response to increasing the amylose: amylopectin ratio, but that the response was specific only to the variations in amylose: amylopectin ratio by using an extracted starch from a high amylose maize cultivar. Variation of the amylose: amylopectin ratio by using different rice cultivars gave no (p>0.05) differences in broiler growth performance. The influence of different amylose: amylopectin ratios on the physical nature of the starch granule may therefore be more important than their effects in changing the total dietary supply of those starch components. Although the net energy concentration of a wheat sample was related (p<0.05, r2=0.42) to its determined AME, there was still unexplained variation (about 60%) in the cilicicncy of utilization of AME as a source of NE. A proportion of this variation was, however, explained (p<0.05, r2=0.40) by differences in the water-extract viscosity of the wheat samples. Different ileal viscosities, due to feeding different wheat cultivars, may result in variation in the amount of intestinal fermentation of nutrients and so altcr the NENE ratio of whcat-based diets.
Exponential speed-up with a single bit of quantum information: Testing the quantum butterfly effect
Creators: name: Poulin, David
name: Blume-Kohout, Robin
name: Laflamme, Raymond
name: Ollivier, Harold
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an efficient quantum algorithm to measure the average fidelity decay of a quantum map under perturbation using a single bit of quantum information. Our algorithm scales only as the complexity of the map under investigation, so for those maps admitting an efficient gate decomposition, it provides an exponential speed up over known classical procedures. Fidelity decay is important in the study of complex dynamical systems, where it is conjectured to be a signature of quantum chaos. Our result also illustrates the role of chaos in the process of decoherence.
description: 4 pages, 2 eps figures
Additional file 1 of Bone marrow aspirate concentrate versus platelet-rich plasma for treating knee osteoarthritis: a one-year non-randomized retrospective comparative study
Creators: name: El-Kadiry, Abed El-Hakim
name: Lumbao, Carlos
name: Salame, Natasha
name: Rafei, Moutih
name: Shammaa, Riam
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Hematology

description: Additional file 1 BMAC and PRP treatment modalities and OA grade-based distribution and sub-analyses. Table 1 and Table 2 demonstrate the data of both treatment modalities, BMAC and PRP, including patient ID, knees injected, knee OA grade, number of treatments received, and the volume injected per treatment. Table 3 demonstrates the distribution analyses of OA grades 1-2 vs OA grades 3-4 within treatment groups and between treatment groups. Figure 1 compares the improvement in clinical scores at 12 months between patients with OA grades 1-2 vs OA grades 3-4 within each treatment group.
Electrochemical Determination of Hydrogen Peroxide by a Nonenzymatic Catalytically Enhanced Silver-Iron (III) Oxide/Polyoxometalate/Reduced Graphene Oxide Modified Glassy Carbon Electrode
Creators: name: Ross, Natasha
name: Noniko Civilized Nqakala
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The synergism of phosphomolybdic acid hydrate (POM) decorated with silver-iron (III) oxide (Ag-Fe2O3) nanoparticles and anchored on reduced graphene oxide (RGO) have been demonstrated to be effective as a nonenzymatic H2O2 sensor platform. The assembly of the sensor components and their interactions were probed morphologically, spectroscopically and electrochemically. The Ag-Fe2O3/POM/RGO nanocomposite sensor provided an enhanced electroactive surface area, electrical conductivity and sensitivity for hydrogen peroxide compared to an unmodified glassy carbon electrode (GCE) at –0.55 V versus a saturated calomel electrode. The developed sensor amperometric response was linear across the concentration range from 0.3 mM to 3.3 mM (R2 = 0.992) with a detection limit and sensitivity of 0.2 μM and 271 μA·mM‒1·cm−2 respectively. Concomitantly, a short response time of T90 2O3 stimulated by its adhesion to the distinctive POM/RGO matrix.
Fast-freezing kinetics inside a droplet impacting on a cold surface
Creators: name: Kant, Pallav
name: Koldeweij, Robin B. J.
name: Harth, Kirsten
name: van Limbeek, Michiel A. J.
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Applied Physics (physics.app-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Freezing or solidification of impacting droplets is omnipresent in nature and technology, be it a rain droplet falling on a supercooled surface, be it in inkjet printing where often molten wax is used, be it in added manufacturing or in metal production processes or in extreme ultraviolet lithography (EUV) for the chip production where molten tin is used to generate the EUV radiation. For many of these industrial applications, a detailed understanding of the solidification process is essential. Here, by adopting a totally new optical technique in the context of freezing, namely TIR (Total-Internal-Reflection), we elucidate the freezing kinetics during the solidification of a droplet while it impacts on an undercooled surface. We show for the first time that at sufficiently high undercooling a peculiar freezing morphology exists that involves sequential advection of frozen fronts from the centre of the droplet to its boundaries. This phenomenon is examined by combining elements of classical nucleation theory to the large scale hydrodynamics on the droplet scale, bringing together two subfields which traditionally have been quite separated. Furthermore, we report a peculiar self-peeling phenomenon of a frozen splat that is driven by the existence of a transient crystalline state during solidification.
STATUS OF WEST INDIAN FRUITFLY, IN ST. KITTS, W.I.
Creators: name: Alam, M.M.
name: Alam, M.M.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The West Indian Fruit Fly, Anastrepha obliqua, a serious pest of mangoes in St. Kitts, causes heavy crop losses and makes the fruit unmarketable to other Caribbean countries and the United States of America. Three unimproved mango varieties, "Round Ball" "long Ball" and "Sour Bath" are widely distributed In the island and harbour large populations of the pest. Of these, "Sour Bath" is most susceptible, with levels of infestation ranging from 0-100% (avg. 32%). At Wingfield under the Tree Crop Project, the Ministry of Agriculture has planted the varieties, Julie, Irwin, Graham, Haydon and Amory Polly. Some of these are also grown at Parsons Estate and Molyneux. As the unimproved mangoes grown all over the island, WIFF easily migrates to the grafted mangoes, causing heavy damage. Average levels of fruit infestation recorded were: Julie 4%, Haydon 71, Graham 12%, Irwin 15% and Amory Polly 17%. Because of the continued Influx of WIFF from wild mangoes, sanitation efforts made by the farmers is proving futile, although the levels of fruit damage on their farms is significantly lower. Three species of ptedators, Omalodes sp. nr. laevlgatus, Glyptolenus sp. and an unidentified species of a staphylinid were found feeding on the pest in the field. Omalodes was most common throughout the island. During these studies no parasite was recorded. It is therefore suggested that where Anastrepha spp. are a serious problem, a long term biological control programme may be organized, in which Important exotic parasites may be obtained and released against it.
The $R_\infty$-property for right-angled Artin groups
Creators: name: Dekimpe, Karel
name: Senden, Pieter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E36 (Primary), 20F36 (Secondary)

description: Given a group $G$ and an automorphism $φ$ of $G$, two elements $x, y \in G$ are said to be $φ$-conjugate if $x = g y φ(g)^{-1}$ for some $g \in G$. The number of equivalence classes is the Reidemeister number $R(φ)$ of $φ$, and if $R(φ) = \infty$ for all automorphisms of $G$, then $G$ is said to have the $R_\infty$-property. A finite simple graph $Γ$ gives rise to the right-angled Artin group $A_Γ$, which has as generators the vertices of $Γ$ and as relations $vw = wv$ if and only if $v$ and $w$ are joined by an edge in $Γ$. We conjecture that all non-abelian right-angled Artin groups have the $R_\infty$-property and prove this conjecture for several subclasses of right-angled Artin groups.
INSECT PARASITES OF THE DIAMONDBACK MOTH Plutella xylostella (L.) AND SEASONAL FLUCTUATIONS IN PARASITISM AT THREE LOCATIONS IN JAMAICA
Creators: name: Forbes, Ricardo A.
name: Mansingh, Ajai
name: Forbes, Ricardo A.
name: Mansingh, Ajai
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Two species of parasites of Plutella xvlostella (L.) were recorded in Jamaica, and indeed in the Caribbean, for the first time. These are: a new species of the larval parasites Diadeoma {Ichneumonidae) and the larval and pupal parasite, Tetrastichus Bokolowskii Kurdjumov. A new species of a hyperparasite of Diadeoma, Spilochalcis sp. was also recorded. The Incidence of parasitism by these hymenopterans has been fairly high throughout the study period of 1986-1988 in three cabbage growing areas of Jamaica, in spite of heavy uses of insecticides on weekly or twice-weekly basis. The monthly mean levels of parasitism (with ± 95 percent C.L.) in Douglas Castle between March 1986 and July 1987, was 32.8 ± 8 percent, and in Guys Hill, it was 16 ± 10 percent between August 1987 and August 1988.
Chandra Observations of the X-ray Environs of SN 1998bw/GRB 980425
Creators: name: Kouveliotou, C.
name: Woosley, S. E.
name: Patel, S. K.
name: Levan, A.
name: Blandford, R.
name: Ramirez-Ruiz, E.
name: Wijers, R. A. M. J.
name: Weisskopf, M. C.
name: Tennant, A.
name: Pian, E.
name: Giommi, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abrigded) We report X-ray studies of the environs of SN 1998bw and GRB 980425 using the Chandra X-Ray Observatory 1281 days after the GRB. Combining our observation of the supernova with others of the GRB afterglow, a smooth X-ray light curve, spanning ~1300 days, is obtained by assuming the burst and supernova were coincident at 35.6 Mpc. When this X-ray light curve is compared with those of the X-ray ``afterglows'' of ordinary GRBs, X-ray Flashes, and ordinary supernovae, evidence emerges for at least two classes of lightcurves, perhaps bounding a continuum. By three to ten years, all these phenomena seem to converge on a common X-ray luminosity, possibly indicative of the supernova underlying them all. This convergence strengthens the conclusion that SN 1998bw and GRB 980425 took place in the same object. One possible explanation for the two classes is a (nearly) standard GRB observed at different angles, in which case X-ray afterglows with intermediate luminosities should eventually be discovered. Finally, we comment on the contribution of GRB afterglows to the ULX source population.
description: 26 pages, 5 figues, submitted to ApJ
PERSISTENCE OF THREE SYNTHETIC PRYETHROIDS IN JAMAICAN SOILS
Creators: name: Gayle, Dianne
name: Mansingh, Ajai
name: Gayle, Dianne
name: Mansingh, Ajai
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Persistence of three pyrethroids (decis, permethrin and phenothrin) in three types of Jamaican soils - Chudleigh clay loam (CCL) Sydenham clay loam (SCI.) and Marvelly sandy loam (MSL) at three moisture levels (5, 10 and 15%) was assayed with adult Triholium conEusum. The LT50 values of LC50x4 doses of the insecticide in CCL, SCL and MSL and at 15% moisture level were respectively, 2.56, 2.25, and 3.10 for phenothrin, 3.86, 3.11 and A.09 for permethrin and 3.18, 3.98 and 3.83 for decis. The LT50 values for LC50x2 doses were generally lower than that of the higher dose being 2.49, 1.60 and 2.62 for phenothrin, 2.89, 2.56, 3.50 for permethrin and 2.06, 3.77 and 3.26 for decis, respectively.
Beiträge zur Kenntnis der Chronologie des „Jüngeren Lösses" in der Dobrudscha (Rumänische Volksrepublik)
Creators: name: Samson, Petre
name: Radulescu, Constantin
Publisher: name: Geozon Science Media
Year: 1959

description: Beim Studium der Lößablagerungen von Poarta Alba, in den Höhlen „La Adam", Bordeiul de Piatra" und „Adadpostul Rindunelelor" war es möglich, das Vorhandensein von zwei hauptsächlichen Ablagerungsperioden in der Dobrudscha festzustellen und zwar: Jüngerer Löß I, der eine arktische Fauna und Hoch-Moustier-Industrie aufweist und Jüngerer Löß II, welcher in zwei Etappen abgelagert wurde. Jüngerer Löß IIa und lIb zeigen die größte Häufigkeit an arktischer Fauna und Steppentieren, der eine in Verbindung mit der Mittel-Aurignac-Industrie, der andere mit der Gravette-Industrie. Zwischen den beiden Schichten des Jüngeren Löß II befindet sich ein interstadiales Niveau, das Vistorna-Interstadial, welches für diese, von der gemäßigten Fauna beherrschten Gegend charakteristisch ist und Instrumente aus der Prägravette-Industrie geliefert hat. In der Dobrudscha bildete sich während des Oberen Pleistozäns eine Waldsteppen-Landschaft, was durch die Anwesenheit der Vertreter der Steppen- und Waldfauna bewiesen ist; die Anwesenheit der arktischen Tiere ist in dieser Gegend nur auf deren Winterwanderung zurückzuführen.
description: research
RESPONSE OF NEMATODE-INFESTED PINEAPPLE CROPS TO INCREASING N-P-K FERTILIZATION
Creators: name: Hutton, D.G.
name: Parke, A.H.
name: Hutton, D.G.
name: Parke, A.H.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: This trial was to determine if the widespread unthriftiness, nutrient deficiency symptoms, low production and poor ratooning observed in pineapple plantings were due to underfertilization or nematode damage, and the response of nematode-damaged plants to increasing N-P-K fertilization. A plot heavily i?ifested with Helicotylenchus multicinetus and Pratylenchus sp. was fumigated with a DD/DBCP mixture before and treated with phenamiphos after planting. A 12-8-30 N-P-K fertilizer was applied to the Smooth Cayenne, 3ed Spanish or Sugar Loaf varieties at 560, 1120 or 168O kg/ha/year. At 5, 9, 13 and 17 months, plants of the 3 varieties in the nematicide-treated plots were significantly "bigger, had much longer roots and significantly less of them were nutrient deficient compared with infested plots. Many more plants in the nematicide-treated areas bore and fruits were significantly larger than in the untreated plots. In the ratoon crop, the majority of plants in the untreated plots were nutrient deficient compared with significantly less in the nematicide-treated plots. More and larger fruits were borne, particularly with the Sugar Loaf variety, in the nematicide-treated plots. There was no influence of increasing fertilization whether in nematicide- treated or untreated plots in either crop for any variety. Nematode-damaged pineapple plants were nutrient deficient and grew and produced poorly even with adequate fertilization. The greatest responses to nematode suppression were observed with the Smooth Cayenne variety.
Bosonization and generalized Mandelstam soliton operators
Creators: name: Blas, Harold
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The generalized massive Thirring model (GMT) with three fermion species is bosonized in the context of the functional integral and operator formulations and shown to be equivalent to a generalized sine-Gordon model (GSG) with three interacting soliton species. The generalized Mandelstam soliton operators are constructed and the fermion-boson mapping is established through a set of generalized bosonization rules in a quotient positive definite Hilbert space of states. Each fermion species is mapped to its corresponding soliton in the spirit of particle/soliton duality of Abelian bosonization. In the semi-classical limit one recovers the so-called SU(3) affine Toda model coupled to matter fields (ATM) from which the classical GSG and GMT models were recently derived in the literature. The intermediate ATM like effective action possesses some spinors resembling the higher grading fields of the ATM theory which have non-zero chirality. These fields are shown to disappear from the physical spectrum, thus providing a bag model like confinement mechanism and leading to the appearance of the massive fermions (solitons). The ordinary MT/SG duality turns out to be related to each SU(2) sub-group. The higher rank Lie algebra extension is also discussed.
description: 22 pages, LaTex. Some misprints were corrected. Published in Eur.Phys J.C
Alopecosa pulverulenta
Creators: name: Paschetta, Mauro
name: Christille, Claretta
name: Marguerettaz, Fabio
name: Isaia, Marco
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Alopecosa
Alopecosa pulverulenta

description: Alopecosa pulverulenta (Clerck, 1757)
NEW DATA. — Sarre-Saint Pierre: Monte Torretta, 900 m, dry meadow, 3-24. V.2012, 9 ♂, leg. Negro; same locality, 24.V-13. VI.2012, 1 ♂, leg. Negro; Morgex-La Salle: Natural Reserve of Marais, 896 m, grove of reeds, 26.VI-12.VII.2013, 1 ♀, leg. Negro; same locality, riparian forest, 26.VI-12.VII.2013, 2 ♀, leg. Negro; same locality, 11-26. VI.2013, 1 ♂ 3 ♀, leg. Negro; Torgnon: Lo Ditor, 1950 m, peat bog, 11-26. VI.2013, 10 ♂ 2 ♀, leg. Negro; same locality, 26.VI-12.VII.2013, 6 ♂ 3 ♀, leg. Negro; same locality, 12-26.VII.2013, 2 ♂ 1 ♀, leg. Negro; same locality, 26.VII-14. VIII.2013, 1 ♂ 2 ♀, leg. Negro; Aymavilles: Pont d’Ael, 800 m, dry meadow, 24.V-13. VI.2012, 2 ♂, leg. Negro; Courmayeur: Val Ferret, 1630 m, shrubs, 26.VI-12.VII.2013, 5 ♂ 3 ♀, leg. Negro; same locality, 1740 m, gravel bed of a river, 14-28.VIII.2013, 2 ♂ 1♀, leg. Negro; Challand-Saint-Victor: Natural Reserve of Lago di Villa, 820 m, meadow, 11-26. VI.2013, 3♀, leg. Negro; same locality, 26.VI-12.VII.2013, 5♀, leg. Negro; same locality, broadleaved forest, 12-26.VII.2013, 1 ♀, leg. Negro; Gressan: Natural Reserve of Côte de Gargantua, 700 m, dry meadow, 3-24. V.2012, 1 ♂, leg. Negro; Pont-Saint-Martin: Natural Reserve of Stagno di Holay, 775 m, wet meadow, 5.IV.2012, 1 ♂, leg. Paschetta & Isaia; same locality, 11-26. VI.2013, 3 ♀, leg. Negro; same locality, 26.VI-12. VII.2013, 1♂ 1 ♀, leg. Negro.
LITERATURE. — Calloni 1889; Pavesi 1904; di Caporiacco 1928; Lugetti & Tongiorgi 1969; Rossi & Arnò 1995; [Isaia 2005]; De Angelis & Fantoni 2008; [Rossi & Bosio 2012].
CHOROTYPE. — PAL.
MACROHABITAT. — Wetlands, riparian habitats, gravel beds, shrublands, broadleaved forests, alpine grasslands.
description: Published as part of Paschetta, Mauro, Christille, Claretta, Marguerettaz, Fabio & Isaia, Marco, 2016, Regional catalogue of the spiders (Arachnida, Araneae) of Aosta Valley (NW Italy), pp. 49-125 in Zoosystema 38 (1) on pages 85-86, DOI: 10.5252/z2016n1a3, http://zenodo.org/record/4578074
Results of a Si/CdTe Compton Telescope
Creators: name: Oonuki, Kousuke
name: Tanaka, Takaaki
name: Watanabe, Shin
name: Takeda, Shin'ichiro
name: Nakazawa, Kazuhiro
name: Mitani, Takefumi
name: Takahashi, Tadayuki
name: Tajima, Hiroyasu
name: Fukazawa, Yasushi
name: Nomachi, Masaharu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have been developing a semiconductor Compton telescope to explore the universe in the energy band from several tens of keV to a few MeV. We use a Si strip and CdTe pixel detector for the Compton telescope to cover an energy range from 60 keV. For energies above several hundred keV, the higher efficiency of CdTe semiconductor in comparison with Si is expected to play an important role as an absorber and a scatterer. In order to demonstrate the spectral and imaging capability of a CdTe-based Compton Telescope, we have developed a Compton telescope consisting of a stack of CdTe pixel detectors as a small scale prototype. With this prototype, we succeeded in reconstructing images and spectra by solving the Compton equation from 122 keV to 662 keV. The energy resolution (FWHM) of reconstructed spectra is 7.3 keV at 511 keV and 3.1 keV at 122 keV, respectively. The angular resolution obtained at 511 keV is measured to be 12.2 degree (FWHM).
description: 11 pages, 13 figures, presented at SPIE conference HARD X-RAY AND GAMMA-RAY DETECTOR PHYSICS VII", San Diego, 2005. To be published in Proc. SPIE 2005
Bath-induced collective phenomena on superconducting qubits: synchronization, subradiance, and entanglement generation
Creators: name: Cattaneo, Marco
name: Giorgi, Gian Luca
name: Maniscalco, Sabrina
name: Paraoanu, Gheorghe Sorin
name: Zambrini, Roberta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A common environment acting on a pair of qubits gives rise to a plethora of different phenomena, such as the generation of qubit-qubit entanglement, quantum synchronization and subradiance. Here we define time-independent figures of merit for entanglement generation, quantum synchronization and subradiance, and perform an extensive analytical and numerical study of their dependence on model parameters. We also address a recently proposed measure of the collectiveness of the dynamics driven by the bath, and find that it almost perfectly witnesses the behavior of entanglement generation. Our results show that synchronization and subradiance can be employed as reliable local signatures of an entangling common-bath in a general scenario. Finally, we propose an experimental implementation of the model based on two transmon qubits capacitively coupled to a common resistor, which provides a versatile quantum simulation platform of the open system in any regime.
description: Accepted version
CHEMICAL CONTROL OF THE COFFEE BERRY BORER Hypothenemus hampei Ferrari
Creators: name: Mansingh, Ajai
name: Mansingh, Ajai
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The paper reviews the history of chemical control of H. hampei around the world, including results of field trials and laboratory bioassays of various insecticides against the pest. Brazil pioneered the use of modern organic insecticides against H. hampei in 1947 with the aerial and mechanical application of BHC dust. The technique was soon adapted by Africa where BHC dust was replaced by wettable powder. Since the late 1960s, endosulfan has completely replaced BHC. Field trials with 73 formulations of 54 different insecticides including 10 organochlorines (OC), 26 organophosphorous compounds (OP), 9 carbamates, 4 synthetic pyrethroids (SP) and 3 mixtures have revealed that only OCs provide good control of the pest. Laboratory screening of 39 formulations of 25 insecticides demonstrated high susceptibility of the pest to several OCs, OPs and SPs. The need for developing more presistant formulations of some OPs and SPs, and for integrating chemical spraying with other methods of pest control are emphasized
PESTICIDE RESIDUES ON NON-BELL PEPPERS IN PUERTO RICO
Creators: name: Montalvo-Zapata, R.
name: Baron, J.J.
name: Meister, C.W.
name: Montalvo-Zapata, R.
name: Baron, J.J.
name: Meister, C.W.
Publisher: name: Unknown
Year: 1988
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The U.S. Environmental Protection Agency has established about 60 pesticide tolerances on peppers. However, only 5 pesticides have specific tolerances on bell peppers and 3 on Bohemian, Chili and Tabasco peppers. In Puerto Rico, common non-bell peppers such as Cubanelle , Blanco del Pais, Key Largo Hybrids, sweet cherry, and Jalapeño are grown commercially. More than fifteen field trials were conducted in Puerto Rico to develop efficacy, yield and residue data with several pesticides . The pesticides were either applied to the soil or to the foliage to obtain treated crop samples for pesticide residue determinations. Data on pesticide residue for fluazifo-p butyl, fenamiphos , oxamyl, benomyl, acephate, and permethrin on non-bell pepper samples collected in Puerto Rico are discussed and compared to data on bell and non-bell peppers grown in continental USA. Regulatory status of fluazifop-butyl fenamiphos, oxamyl, acephate, permethrin and benomyl on non-bell peppers are discussed . Potential pesticides for pest and disease control on non-bell peppers grown in the Caribbean Basin are identified.
A TWO-MACHINE SYSTEM FOR MECHANICAL PREPARATION AND PLANTING OF CASSAVA STEM CUTTINGS
Creators: name: Harvey, W. O'N.
name: St. John, C. B.
name: Simon, C.
name: Harvey, W. O'N.
name: St. John, C. B.
name: Simon, C.
Publisher: name: Unknown
Year: 1985
Subjects: Crop Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: A P.T.O. driven machine capable of rapidly cutting.cassava sterns into uniform planting sticks of any desired length, and a two-row machine capable of planting these sticks on ridges or flat land at desired inter-and intra-row spacings, were designed, fabricated and evaluated. The stern cutting machine prepared planting sticks at about 3 times the rate normally achieved with manual cutting, and produced a higher quality of cut and a higher degree of uniformity of stick length. The two-row planter gave near perfect inter-row spacing and variations in intra-row spacing and planting depth were comparable to those achieved with manual planting. Planting rates of 0.6 ha hr-1 were achieved in a commercial 20 ha trial. ----- Se dise'llaron, fabricaron y evaluaron dos maquinas de transmision P.T.O. una, capaz de cortar rnpidamente tallos de yuca en trozos uniforrnes (iguales) de cualquier tamano deseado; y otra de dos surcos, capaz de sembrar estos trozos en serranias 0 llanos, en espacios deseados entre y dentro de los surcos. La maquina cortadora de tallos preparo" trozos para plantar a una velocidad tres veces mayor que la del corte manual y produ]o cortes de mayor caUdad y mayor grade de uniformidad en el tarnaiio de los trozos. La maguina sembradora de dos surcos produjo espacios entre surcos casi perfectos; y tanto las variaciones en los espacios dentro de los surcos como la profundidad de los sembradfos fueron comparables a las que se obtuvieron sembrando manualmente. Se logrd una tasa de 0.6 hectares por hora en una prueba cornercial de 20 hectdreas.
Vorelsterzeitliche Karsttaschen mit Terra-fusca-Füllung in der Kreide von Meerdorf im Landkreis Braunschweig
Creators: name: Herrmann, Rudolf
Publisher: name: Geozon Science Media
Year: 1968

description: Bei Meerdorf im Landkreis Braunschweig finden sich auf der Oberfläche von mergeligen Kalken der Mucronatenschichten sack- und trichterförmige Taschen, die bis 3 m tief und mit braunem Ton und Geschiebesanden gefüllt sind. Auf schwacher Hangneigung gelegene Taschen sind in ihrem oberen Teil hangabwärts verzerrt und unter Fließschutt der Kreidekalke zu langen Schwänzen ausgezogen. Der braune Ton ist auch außerhalb der Taschen auf der narbigen Oberfläche der Kalke verbreitet, wogegen die Geschiebesande auf die Kerne der Taschen beschränkt sind. Über diesen Bildungen liegt eine Grundmoräne. Die Kleinformen der Kreideoberfläche und die tieferen Taschen sind durch Auflösung von Mergelkalkstein entstanden; der nichtkarbonatische Rückstand bildet eine Terra fusca. Die Verkarstung vollzog sich unter warmem Klima und begann möglicherweise schon vor dem Pleistozän. Die Geschiebesande in den Taschen sind vermutlich elsterzeitlich und waren ursprünglich flächenhaft verbreitet; in das Innere der Taschen sind sie durch Eiskeilbildung oder auf andere Weise gelangt. Danach wurden die Sande flächenhaft abgetragen. Deformiert wurden die Taschen zu Beginn der Saalezeit durch Solifluktion. Die das Profil abschließende Grundmoräne ist die des drenthestadialen Eisvorstoßes.
description: research
Quasiparticle anisotropy and pseudogap formation from the weak-coupling renormalization group point of view
Creators: name: Katanin, A. A.
name: Kampf, A. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the one-loop functional renormalization group technique we evaluate the self-energy in the weak-coupling regime of the 2D t-t' Hubbard model. At van Hove (vH) band fillings and at low temperatures the quasiparticle weight along the Fermi surface (FS) continuously vanishes on approaching the (pi,0) point where the quasiparticle concept is invalid. Away from vH band fillings the quasiparticle peak is formed inside an anisotropic pseudogap and the self-energy has the conventional Fermi-liquid characteristics near the Fermi level. The spectral weight of the quasiparticle features is reduced on parts of the FS between the near vicinity of hot spots and the FS points closest to (pi,0) and (0,pi).
description: 4 pages, 4 figures, RevTex
SHAXSGA OID MA'LUMOTLARNING UMUMIY TAVSIFI VA KRIMINALISTIKAGA OID JIHATLAR
Creators: name: Ergasheva Ozoda Erkin qizi
Publisher: name: Zenodo
Year: 2024

description: Shaxsga oid ma'lumotlar (SHOM) — bu biror shaxsni aniqlash va u haqida axborot berishga xizmat qiluvchi har qanday axborot. Zamonaviy jamiyatda SHOMlar har kuni yig'iladi, saqlanadi va ishlatiladi. Ularning muhofazasi va to'g'ri boshqarilishi nafaqat shaxsiy hayotning maxfiyligini ta'minlaydi, balki fuqarolar huquqlarini ham himoya qiladi....