59 research outputs found
Euchondrus adwani Eike Neubert & Zuhair Amr 2016, n. sp.
No full textEuchondrus adwani n. sp. (Figure 1) Material: Holotype NMBE 539263; paratype NMBE 539264 /1. Type locality: Syria, surrounding of the monastery of Deir Moussa, 34.0219°N 36.8423°E, 1300 m a.s.l., 11.iii. 2010, leg. Adwan Shehab. *Corresponding author. Email: [email protected] © 2016 Taylor & Francis Measurements (holotype): Height = 11.04 mm; diameter = 4.13 mm; peristome height = 4.03 mm; peristome diameter = 2.97 mm; number of whorls = 8. Diagnosis. Euchondrus adwani n. sp. differs from the widespread E. septemdentatus by its conical shell (broadly oval in E. septemdentatus), its flat suture and teleoconch whorls (suture deeper, whorls much more rounded in E. septemdentatus), the heavy palatal labial callus (weaker in E. septemdentatus), the bar-like subangularis (weaker in E. septemdentatus), and the keeled last whorl (rounded in E. septemdentatus). Description: Shell solid, dextral, cylindrical, upper part cylindro-conical in outline; shell pale brownish to horny yellow coloured; 8 rather flat-sided teleoconch whorls, suture flat with a distinct white sutural thread; teleoconch smooth, glossy, last whorl with fine, straight and irregularly spaced striae; aperture subtriangular, peristome strongly thickened by a labial callus, moderately reflected, with a rich dentition (description clockwise): palatum with a small suturalis followed by a conical palatalis superior and a broad infrapalatalis with the latter two denticles placed on a thick callus; columellar side with a basalis and a straight columellaris; parietum with a strong and long parietalis, bordered by a small spiralis, subangularis large, bar-like, left side of the parietum with another small denticle at the attachment site of the peristome; last teleoconch whorl dorsally compressed forming a distinct blunt ridge (arrows); umbilicus slit-like open, periomphalum large, dish-like. Remarks: This species shows some superficial similarities with E. desertorum Rochanaburananda in Forcart, 1981 (Figure 2), which is endemic to the Negev Desert (Heller, 2009). Both species have a straight conical shell, but E. desertorum is considerably larger than E. adwani n. sp. and its aperture is rounded and not subtriangular. It also differs in the formation of the dentition: in E. desertorum, the infrapalatalis is bifid (simple in E. adwani), the spiralis is large and connected to the parietalis (small and disconnected in E. adwani), and the subangularis is weaker (very strong in E. adwani). The last whorl of E. adwani displays a distinct keel with an enlarged periomphalum, while in E. desertorum the dorsum is rounded, and the periomphalum is much smaller. Etymology: This species is named in honour of Dr. Adwan Shawabi, who was a keen collector of molluscs from Syria, and a personal friend, and who was killed in February 2015 in the Syrian civil war (Amr, 2015).Published as part of Eike Neubert & Zuhair Amr, 2016, On a new species of Euchondrus Boettger, 1883 from Syria (Pulmonata: Enidae), pp. 58-60 in Zoology in the Middle East 62 on pages 58-60, DOI: 10.1080/09397140.2015.1132564, http://zenodo.org/record/88703
Regionalizing the sea-level budget with machine learning techniques
No full textAttribution of sea-level change to its different drivers is typically done using a sea-level budget approach. While the global mean sea-level budget is considered closed, closing the budget on a finer spatial scale is more complicated due to, for instance, limitations in our observational system and the spatial processes contributing to regional sea-level change. Consequently, the regional budget has been mainly analysed on a basin-wide scale. Here we investigate the sea-level budget at sub-basin scales, using two machine learning techniques to extract domains of coherent sea-level variability: a neural network approach (self-organizing map, SOM) and a network detection approach (δ-MAPS). The extracted domains provide more spatial detail within the ocean basins and indicate how sea-level variability is connected among different regions. Using these domains we can close, within 1σ uncertainty, the sub-basin regional sea-level budget from 1993–2016 in 100 % and 76 % of the SOM and δ-MAPS regions, respectively. Steric variations dominate the temporal sea-level variability and determine a significant part of the total regional change. Sea-level change due to mass exchange between ocean and land has a relatively homogeneous contribution to all regions. In highly dynamic regions (e.g. the Gulf Stream region) the dynamic mass redistribution is significant. Regions where the budget cannot be closed highlight processes that are affecting sea level but are not well captured by the observations, such as the influence of western boundary currents. The use of the budget approach in combination with machine learning techniques leads to new insights into regional sea-level variability and its drivers
Experimental evidence of context-dependent preferences in risk-free settings
No full textThis study investigates context effects in general and the compromise effect in particular. It is argued that earlier research in this area lacks realism, a shortcoming that is a major drawback to research conclusions and stated management implications. The importance of this issue is stressed by previous research showing that behavioral anomalies found in hypothetical experimental settings tend to be significantly reduced when real payoff mechanisms are introduced. Therefore, to validate the compromise effect, an enhanced design is presented with participants making binding purchase decisions in the laboratory. We find that the compromise effect holds for real purchase decisions, and therefore is validated, and is not an artificial effect in surveys on hypothetical buying decisions. While conclusions and implications for marketing managers, derived in previous work assume that context effects hold for real market decisions, the results created by this enhanced design close this gap in the literature. --decision-making,anomalies,irrelevant alternatives,context effects
Regional Sea-level Budget from 1993-2016
No full textThis repository contains supporting data for Camargo et al.: 'Regionalizing Sea-level Budget with Machine Learning Techniques', Ocean Sciences (2022, submited).
Note: The manuscript (and dataset) has not been peer reviewed yet!!! Use this data with caution!
PLEASE CITE THE APPROPRIATE PAPERS WHEN USING THIS DATA
Please cite 'Regionalizing Sea-level Budget with Machine Learning Techniques' when using this data set. However, most of the data heavily relies on previous work and data sets by many authors, so please acknowledge that work by citing the original sources of the data (which can be found in the main text of 'Regionalizing Sea-level Budget with Machine Learning Techniques').
PLEASE CHECK THIS CAREFULLY!
This repository contains the following files:
budget_components_ENS.nc
Regional (1x1 degree) trend, uncertainty and time series of the ensemble mean of each of the budget components: total sea-level change (from altimetry) and the drivers (steric, GRD and dynamic). If required the individual data sets used for the ensemble, please contact the author.
masks.nc
netcdf containing land-ocean mask, as well as the domains maps (SOM and delta-MAPS). We refer to the manuscript for more information of how the regional domains were acquired.
dmaps_trend.pkl (and .xlsx)
Trend and uncertainties of each of the budget components for each delta-MAPS domains. Available as an excel table (.xlsx) and as pickle file (.pkl)
som_trend.pkl (and .xlsx)
Trend and uncertainties of each of the budget components for each SOM domains. Available as an excel table (.xlsx) and as pickle file (.pkl)
The code to generate this data and the manuscript figures can be found at https://github.com/carocamargo/SLB
Corresponding author: [email protected]
Traditional handwoven textiles: a case study of thermal comfort of Thailand’s traditional fusible and nonfusible linings
No full textMany Asian countries have made and worn their own traditional textiles; however, due to the rapidly changing influence of western culture, today’s young people prefer to wear modern clothes rather than clothes made using handwoven fabrics. In order to protect and support traditional textile communities/artisans, governments are making great efforts to preserve traditional textile communities. The purpose of this study was to measure the thermal comfort properties of selected handwoven textiles made in Thailand. The results showed no significant difference in terms of thermal comfort between handwoven fabrics combined with linings (fusible and nonfusible). The advantages of the fusible lining include giving support to the handwoven fabric structure, particularly along the seams, and assistance against fabric fraying along cut edges. The results yielded recommendations to weavers of traditional fabrics to optimize the comfort function of the fabrics when worn in traditional Thai garments.This accepted article is published as An SK, Kumphai P, Alam AM, Eike RJ. Traditional handwoven textiles: a case study of thermal comfort of Thailand’s traditional fusible and nonfusible linings. Textile Research Journal. 2022;92(21-22):3973-3981. doi:10.1177/00405175221097105. Posted with permission. © The Author(s) 2022.<br
Leiostyla eikenboomi Ruud, Menkhorst & Neubert, 2016, spec. nov.
No full textLeiostyla eikenboomi spec. nov. (Fig. 3) Type locality & type specimens. – Turkey, Vilayet Karabük, Suçatı Tüneli 9 km ESE. Yenice, 190 m (41.1897°N 32.4349°E), H.P.M.G. Menkhorst leg., 22.x.2008. Holotype NMBE 544682, paratypes NMBE 544644/2. Diagnosis. – A conic, densely ribbed Leiostyla species with a prominent angular lamella, as well as a prominent parietalis, palatalis inferior, and columellaris; a basalis and supracolumellaris is missing and there is a prominent two-peaked thickening between the columellar insertion of the peristome and the angular lamella. Description. – Shell dextral, conic in outline, with closely, distinctly and regularly, oblique ribbing; there are no spiral striae. The 6.7-7.2 whorls are convex and separated by a deep suture. Shell rather solid, not or hardly translucent, dark horn-coloured. The last whorl has a lengthy but shallow gutter, corresponding in its position to the palatalis inferior on the outer wall, but there is no distinct basal keel. Umbilicus open, deep and narrow. Peristome strongly reflected at right angles to form a flat, thickened, somewhat yellowish coloured lip. Columellar and palatal insertion connected by a clearly visible parietal callus. Angular lamella prominent, high, without appendages; it almost reaches the border of the parietal callus. The angular lamella is fused with a sharp, triangle-like subangularis that faces the palatal wall and that on its turn is fused with the palatal insertion of the peristome. The subangularis creates a small sinulus. A small sinulus at the columellar insertion of the peristome is created by a two-peaked prominent thickening situated below the border of the parietal callus. Parietalis prominent, high, rather deep inside the aperture; it is not connected with the angular lamella. Palatalis inferior very long and well developed; it just stops in front of the lip (i.e. it does not fuse with it). A very small, dot-like palatalis superior is present just above the anterior end of the palatalis inferior, close to the thickened lip. The columellaris is horizontally projected above the middle of the columellar side of the aperture. There is a marked thickening below the parieto-palatal angle of the peristome. Measurements (n = 2). – Holotype: H = 3.4; LWH = 1.8; MH = 1.4; LWD = 1.9; LWM = 2.0; MD = 1.2; NW = 7.2. Paratype: H = 3.3; LWH = 1.8; MH = 1.4; LWD = 1.9; LWM = 2.1; MD = 1.3; NW = 6.7. Localities. – Known from the locus typicus only (see above). Derivatio nominis. – Named after Joop C.A. Eikenboom, a well-known Dutch malacologist and for forty years an inspiring friend of the second author. Differentiation. – Leiostyla superba differs from L. eikenboomi by its more densily packed and finer ribbing, the less conical outline, the denticulate peristome, the presence of a basalis and supracolumellaris, the more prominent palatalis superior, the more prominent tooth-like thickening of the palatal peristome just above the palatalis superior, and the missing of a two-peaked thickening below the border of the parietal callus. Leiostyla zilchi differs from L. eikenboomi by the presence of a basalis and supracolumellaris, the more developed palatalis superior, and the missing two-peaked thickening below the border of the parietal callus.Published as part of Ruud, A. Bank, Henk P. M. G Menkhorst & Eike Neubert, 2016, Descriptions of new and little-known land snail taxa from Turkey, and establishment of a new genus (Gastropoda, Pulmonata: Lauriidae, Enidae and Vitrinidae), pp. 5-30 in Basteria 80 (1) on page 8, DOI: 10.5281/zenodo.43974
Returning culture to peacebuilding : contesting the liberal peace in Sierra Leone
No full textThis thesis investigates the advantages and limitations of applying culture to the analysis of violent conflict and peacebuilding, with a particular focus on liberal peacebuilding in Sierra Leone. While fully aware of the critique of the concept of culture in terms of its uses for the production of difference and ‘otherness,’ it also seeks to respond to the critique of liberal peacebuilding on the account of its low sensitivity towards local culture, which allegedly undermines the peace effort. After a careful examination of the terms of discussion about culture enabled by theoretical approaches to conflict in Chapter 2, the thesis presents a theoretical framework for the analysis of cultural aspects of conflict and peace based on the processes and effects of meaning-generation (Chapter 3), developing the conceptual apparatus and vocabulary for the subsequent empirical study. Instead of bracketing out the recursive nature of cultural theorising, the developed approach embraces the recursive dynamics which arise as a result of cultural ‘embeddedness’ of the analyst and the processes which s/he seeks to elucidate, mirroring similar dynamics in the cultural production of meaning and knowledge. The framework of ‘embedded cultural enquiry’ is then used to analyse the practices of liberal peacebuilding as a particular culture, which shapes the interaction of the liberal peace with its ‘subjects’ and critics as well as framing its reception of the cultural problematic generally (Chapter 4). The application of the analytical framework to the case study investigates the interaction between the liberal peace and ‘local culture,’ offering an alternative reading of the conflict and peace process in Sierra Leone (Chapter 5). The study concludes that a greater attention to cultural meaning-making offers a largely untapped potential for peacebuilding, although any decisions with regard to its deployment will inevitably be made from within an inherently biased cultural perspective
A note on Condorcet consistency and the median voter
No full textWe discuss to which extent the median voter theorem extends to the domain of single-peaked preferences on median spaces. After observing that on this domain a Condorcet winner need not exist, we show that if a Condorcet winner does exist, then it coincides with the median alternative ('the median voter'). Based on this result, we propose two non-cooperative games that implement the unique strategy-proof social choice rule on this domain. --
Strong supernovae bounds on ALPs from quantum loops
No full textWe show that in theories of axionlike particles (ALPs) coupled to electrons
at tree-level, the one-loop effective coupling to photons is process dependent:
the effective coupling relevant for decay processes,
, differs significantly from the coupling appearing
in the phenomenologically important Primakoff process,
. We show that this has important implications for
the physics of massive ALPs in hot and dense environments, such as supernovae.
We derive, as a consequence, new limits on the ALP-electron coupling,
, from SN 1987A by accounting for all relevant production
processes, including one-loop processes, and considering bounds from excess
cooling as well as the absence of an associated gamma-ray burst from ALP
decays. Our limits are among the strongest to date for ALP masses in the range
. Moreover, we also show how
cosmological bounds on the ALP-photon coupling translate into new, strong
limits on at one loop. Our analysis emphasises that large
hierarchies between ALP effective couplings are difficult to realise once
quantum loops are taken into account.Comment: 36 pages, 10 figures. Changes in v2: gravitational redshift taken
into account, small corrections. This is an author-created, un-copyedited
version of an article published in JCAP. IOP Publishing Ltd is not
responsible for any errors or omissions in this version of the manuscript or
any version derived from i
Long-run factors of firm growth - a study of German firms
No full textThis paper investigates whether the economic factors that are related to firm growth in the literature also determine the development path of firms. This means that we test which economic factors possess the ability to remain effective for a longer period of time. We examine three variables: firm size, innovation effort and export share. To this end, we use panel-data on 178 German manufacturing firms over the period from 1992 to 2007. We find that the determinants of permanent growth path are not the same as the determinants of firm growth at one point in time. --firm growth,firm growth paths,firm size,export,innovation effort
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