Miracle-dz/UniFAR-FTUs huggingface dataset:
Efficiency of Indian Equity Futures Market—An Empirical Analysis with reference to National Stock Exchange

At National Stock Exchange (NSE), the largest by market capitalization and the most liquid stocks, which form the majority of free float market capitalization of the exchange, have traded futures contracts. The equity stock futures segment in India has recorded very high growth in trading volume and turnover for more than one decade where majority trade happens on NSE. The primary objective of this study is to investigate the dynamic linkages between equity stock futures and their underlying spot markets. The article examines market efficiency and the causal relationship between single-stock futures and underlying stocks traded at NSE, by employing Johansen cointegration test, a test for autoregressive (AR) order of basis, vector error correction model (VECM) and impulse response functions. The result shows the existence of long-run equilibrium relationship between equity stock futures and their underlying stocks. The spot market is found to play a lead role in correction of any short-run disequilibrium towards long-run equilibrium, for the majority of stocks. Both spot and future markets contribute in price discovery and neither of the markets display considerably higher information efficiency compared to the other. In contrast, the study also reveals possibilities of arbitrage opportunity between the equity stock futures market and the underlying spot market in absence of transaction costs possibly due to faster correction of short-run disequilibrium by spot prices.
The presence of two proteinases associated with the cell wall of Lactobacillus bulgaricus

Whole cells of Lactobacillus delbrueckii subsp. bulgaricus ACA DC235 are able to hydrolyse casein. This proteolytic activity is greatly enhanced when cells are grown in milk rather than in a peptide-rich synthetic medium such as De Man-Sharp-Rogosa. A significant part of the caseinolytic activity can be extracted by treating the intact cells with lysozyme, which suggests that the enzyme(s) involved are associated with the cell wall. The soluble lysozyme extract has been partially fractionated by ultrafiltration using different membranes. Biphasic kinetics of irreversible thermal denaturation, partial inactivation by various agents, and selective reactivation by zinc ions indicated that the overall caseinolytic activity was due to two distinct enzymes. The first one was rapidly inactivated upon heating, inhibited by EDTA, reactivated by Zn2+ ions, and was probably a zinc-dependent metalloprotease. The other one was more stable towards thermal inactivation, inhibited by phenylmethanesulfonyl fluoride, insensitive to N-ethylmaleimide, activated by Ca2+ ions, and was probably a serine protease.
Evidence from tooth surface morphology for a posterior maxillary origin of the proteroglyph fang

Although the front-fanged venom delivery system of the Elapidae is believed to be derived from an aglyphous or opisthoglyphous colubroid ancestor, opinion is divided as to the end of the maxilla on which the proteroglyph fang originated. This study was undertaken to determine whether the evolutionary precursor of the proteroglyph fang was (a) a grooved posterior fang which migrated anteriorly, or (b) an enlarged anterior tooth which secondarily developed a groove for the conduction of venom. The surface morphology of the maxillary teeth of colubrid genera was examined using scanning electron microscopy. Ridges present on the lingual and labial surfaces of anterior maxillary teeth and on the anterior and posterior surfaces of posterior maxillary teeth were identified as morphological markers of potential value in distinguishing the anterior and posterior maxillary teeth of colubrid snakes, and in determining the origin of the proteroglyph fang. Patterns of ridges on the surfaces of elapid fangs examined were found to be consistent with the hypothesis that the evolutionary precursor of the proteroglyph fang was an opisthoglyph fang which migrated anteriorly.
Size overlap in intertidal decapod communities along the chilean coast

The intertidal crustaceans on the Chilean coast are characterized by high diversity and niche specialization. The present study applied a size overlap null model for intertidal decapod communities at four different sites on the Chilean coast. The results revealed that there is a size overlap for the four sites, though body size is significantly different for each location. This means that the reported species would share their ecological niches. The results agree with the first classic environmental descriptions for Chilean intertidal decapods at a local scale and support the observations for similar species on the southern Pacific and southern Atlantic coasts.
Invasibility of a coastal strip in NE Spain by alien plants

Abstract The alien plant species and the ecological factors that facilitate their invasion to a coastal strip in the Baix Camp region (Tarragona, NE Spain) were studied. A detailed inventory of the area showed that 20% of the plant species, most of them from the American Continent, were aliens, many of which were strongly invasive. At the habitat level, the relationships between the invasive behaviour and a number of autecological, ecological and habitat variables were analysed by means of logistic analyses. In the best model five variables were related to alien plant invasions: climatic affinity, disturbance of the invaded habitat, route of introduction, soil moisture during summer, and life form. To elucidate the environmental factors that could be responsible for alien plant invasions at a regional scale, the number of alien taxa and the environmental features at 13 localities of the western Mediterranean area were analysed. The warm lowlands, subjected to low annual rainfall and high population density, exhibited the greatest reception capacity for alien plants. It is concluded that various specific environmental features – high mean temperatures, the abundance of riparian systems, the existence of biotopes with favourable water balance which harbour a great richness of alien species and the high human pressure to which the enclave is subjected, combined with the ecological requirements of the alien species and certain species attributes (biotype) can interact at different scales and have caused the over-representation of alien plants. Nomenclature: Castroviejo et al. (1986–1999); Tutin et al. (1968–1980).
Innovation and Firm Performance: The Moderating and Mediating Roles of Firm Size and Small and Medium Enterprise Finance

This study examines the moderating effect of firm size on the relationship between innovation and firm performance of small and medium enterprises in 29 countries in Eastern European and Central Asia. The study also investigates whether the impact of innovation in products and processes on firm performance is affected by financial capital. The method applied is partial least square structural equation modelling. The findings indicate that firm size and the financial capital both moderate and mediate the impact of innovation on firm performance, positively or negatively. The findings have implications for decision makers by highlighting the significance of firm size and financial sources when planning to introduce innovations to enhance firm performance.
New records of recently described chemosymbiotic bivalves for mud volcanoes within the European waters (Gulf of Cádiz)

Chemosymbiotic bivalves are important members of cold seep communities and information on their distribution in the European waters is still quite scarce. This study reports the presence of living populations and shell remains of some recently described bivalves such as Lucinoma asapheus , Solemya elarraichensis and Acharax gadirae as well as Bathymodiolus sp. in the mud volcanoes of the Spanish Atlantic waters. Living populations of these species were thus far only found in Anastasya, Aveiro and Almazan mud volcanoes, together with other chemosymbiotic metazoa ( Siboglinum spp.), suggesting the presence of moderate seepage activity. In other mud volcanoes (Albolote, Gazul), the benthic communities are dominated by sessile filter feeders on authigenic carbonates (chimneys, slabs) and only the shell remains of some chemosymbiotic bivalves were found, indicating earlier or very low seepage conditions. The present study elaborates on the known distribution of L. asapheus and S. elarraichensis to the European waters of the Gulf of Cadiz.
Detection of mycoplasmalike organisms in declining oaks by polymerase chain reaction

By polymerase chain reaction, mycoplasmalike organisms (MLOs) were detected in several declining trees of Quercus robur sampled at two locations of Germany. The MLOs associated with declining oaks were, within the 16S rDNA studied, genetically uniform and closely related to the MLOs associated with European stone fruit yellows and apple proliferation.
After the toolkit: anticipatory logics and the future of government

Abstract Introducing a special issue of Policy Design and Practice on designing future governments, this article draws on growing interest in the concepts and practices of anticipation, foresight and design among policy makers in international bodies, think tanks and governments. Building on the concept of anticipatory governance, we aim to show how approaches associated with foresight and design produce a capacity for future uncertainties to be made visible and graspable, with the potential to open up participation and reflexivity in discussions about public policy issues and anticipate ways to address them, beyond public administrations. The special issue includes six papers sharing insights about scenarios, workshops, public innovation labs and co-design projects from Europe, Latin America and Australia. Some are speculative—based on a small-scale intervention or experiment—while others are based on a larger scale project with the participation of relevant stakeholders such as public service providers, public administrations and local residents. Together, the contributions to the special issue suggest that futures and design approaches enact an anticipatory logic which is necessary for public administrations to achieve their goals, in the face of many uncertainties and in a context in which new forms of expertise, data and infrastructures are opening up government.
Localization of Acetylcholinesterase Activity in the Mouse Heart.

The electron microscopic localization of the acetylcholinesterase (AChE) activity in the mouse heart was studied by the method of Tago et al. (1986). The results showed deposition of reaction product only in nerve elements: some neurons of the intrinsic atrial ganglia and atrial and ventricular nerve fibers. The AChE activity was particularly localized in the synaptic clefts. In contrast with previous reports describing the existence of “internal” ChE, no activity was detected within myocardial cells.
Banking on courts: financialization and the rise of third-party funding in investment arbitration

Abstract In this paper, we explore the drivers of the rise of third-party funding (TPF) in investor-state arbitration. TPF involves financiers shouldering the legal fees of an investment treaty claim against a sovereign state in exchange for a share of any eventual award. Existing research has highlighted how TPF may exacerbate the inequities inherent to a legal regime that is already weighted in favor of private interests by increasing investors’ access to funding of their legal claims, but the factors which gave rise to TPF are little understood. We argue that financialization helps to explain both the spread and the characteristics of TPF. In particular, the evidence presented in this paper suggests that the large supply of investable capital that is searching for profitable investment opportunities helps to account for the rise of TPF. The analysis provides the basis for broader propositions and a research agenda about the ways in which financialization alters the logics of an international legal regime and aligns the interests of different private agents, both of which may change the public-private balance in investor-state arbitration and affect its legitimacy.
Factors influencing positive word-of-mouth intentions of inbound tourists to Japan

This study aims to identify the factors that prompt the intention for positive word-of-mouth regarding travel to Japan. A hypothetical model that incorporates the determinants of positive word-of-mouth was established based on online survey data obtained from people from 12 countries and regions who have visited Japan; and the model was verified through multivariate regression analysis. The results confirmed four factors that positively affect travelers’ face-to-face and SNS word-of-mouth intention: customer delight, destination attachment, perceived recognition rate, and photographic evaluation. Furthermore, they suggest that regardless of the type of word-of-mouth communication, the factors that influence positive word-of-mouth intention may be common.
On the Advantages of Mixed-Species Groups: Impalas Adjust Their Vigilance When Associated With Larger Prey Herbivores

Prey can obtain valuable benefits from associating with other species if heterospecifics help to detect predators or locate good food patches. In mixed-species groups, how species respond to the presence of other species remains a poorly explored question although it might give crucial insights into mechanisms underlying the interspecific coexistence. We studied temporary mixed-species groups of large herbivores in Hwange National Park (Zimbabwe) between the common impala (Aepyceros melampus), the focal species here, and bigger species including the plains zebra (Equus quagga), the greater kudu (Tragelaphus strepsiceros) or the blue wildebeest (Connochaetes taurinus). In the Hwange savanna, the focal and smaller species are exposed to a larger range of predators than the associated species. In this context, we investigated how impalas adjusted their vigilance with group size comparing impala-only and mixed-species groups and whether the identity of heterospecifics affected vigilance of impalas. Our study showed that the time impalas spent in vigilance significantly decreased with group size when they formed impala-only groups, whereas it did not significantly vary with group size in mixed-species groups. Moreover, in mixed-species groups, impalas did not adjust their time spent in vigilance with the proportion of conspecifics and the identity of the associated species. Thus, the mechanism underlying the difference of impalas' behavioural adjustment of vigilance with group size between single- and mixed-species groups seemed to be related to the presence but not to the number and the identity of heteropecifics. Finally, we discuss the concept that larger and dominant heterospecifics were likely to increase competition for food access, thereby forcing higher vigilance of impalas, outweighing any reduction from collective vigilance.
Lost Wages: The Covid-19 Cost of School Closures

Social distancing requirements associated with COVID-19 have led to school closures. In April, 192 countries had closed all schools and universities, affecting more than 90 percent of the world's learners: over 1.5 billion children and young people. Closures are expected to reduce schooling and lead to future losses in earnings. Starting from the assumption that every additional year of schooling translates to 8 percent in future earnings, this paper estimates and confirms the loss in marginal future earnings on the basis of a four-month shutdown. The authors also estimated the losses by level of education. The findings show that the school closures reduce future earnings. It is also likely that students from low-income countries will be affected most, where the earning losses will be devastating. These estimates are conservative, assuming closures end after four months, with schools re-opening in the new academic year, and that school quality will not suffer.
Roads Alter the Colonization Dynamics of a Keystone Herbivore in Neotropical Savannas 1

Roads can facilitate the establishment and spread of both native and exotic species. Nevertheless, the precise mechanisms facilitating this expansion are rarely known. We tested the hypothesis that dirt roads are favorable landing and nest initiation sites for founding‐queens of the leaf‐cutter ant Atta laevigata. For 2 yr, we compared the number of attempts to found new nests (colonization attempts) in dirt roads and the adjacent vegetation in a reserve of cerrado (tree‐dominated savanna) in southeastern Brazil. The number of colonization attempts in roads was 5 to 10 times greater than in the adjacent vegetation. Experimental transplants indicate that founding‐queens are more likely to establish a nest on bare soil than on soil covered with leaf‐litter, but the amount of litter covering the ground did not fully explain the preference of queens for dirt roads. Queens that landed on roads were at higher risk of predation by beetles and ants than those that landed in the adjacent vegetation. Nevertheless, greater predation in roads was not sufficient to offset the greater number of colonization attempts in this habitat. As a consequence, significantly more new colonies were established in roads than in the adjacent vegetation. Our results suggest that disturbance caused by the opening of roads could result in an increased Atta abundance in protected areas of the Brazilian Cerrado.
Aminothiotyrosine Disulfide, an Optical Trigger for Initiation of Protein Folding

The development of an optical trigger for protein folding is described. The optical trigger is an aryl disulfide embedded in a polypeptide such that the aryl disulfide constrains the peptide in a nonhelical conformation. Upon photocleavage of the SS bond, the peptide can then commence to fold into an α-helical conformation. Two thiotyrosine derivatives, (S)-4‘-mercaptophenylalanine (Tty) and 3-N-(4‘-mercaptophenyl)-(S)-2,3-diaminoproprionate (Aty), have been prepared and incorporated into polyalanine peptides. The ease of synthesis of protected forms of Tty and Aty amenable for solid phase synthesis, in four steps with 30% overall yield and six steps in 40% overall yield, respectively, make these attractive candidates as precursors of the optical trigger. CD and IR spectroscopy showed that the cyclic disulfide cross-linked peptides are much less helical than their linear counterparts. Following laser flash photolysis, peptide 7, which incorporates Tty, showed total recombination of the thiyl radicals with.
Exploring changes in patient experience with increasing practice size: observational study using data from the General Practice Patient Survey

Background For the last few years, English general practices, which are traditionally small, have been encouraged to work together to serve larger populations of registered patients, by merging or collaborating with each other. Meanwhile, patient surveys suggest worsening continuity of care and access to care. Aim To explore whether increasing size of practice population and working collaboratively are linked to changes in continuity of care or access to care. Design and setting Observational study in English general practice using data on patient experience, practice size and collaborative working Methods The main outcome measures were General Practice Patient Survey practice-level proportions of patients reporting positive experiences of access and relationship continuity of care. We compared change in proportions 2013-2018 among practices that had grown and those that had stayed about the same size. We also compared patients’ experiences by whether practices were working in close collaborations or not in 2018. Results. Practices that had grown in population size had a greater percentage fall in continuity of care, by 6.6% (95% confidence interval 4.3% to 8.9%) than practices that had stayed about the same size, after controlling for other factors. There was no similar difference in relation to access to care. Practices collaborating closely with others had marginally worse continuity of care than those not working in collaboration and no important differences in access. Conclusion Concerns that larger general practice size threatens continuity of care may be justified.
Government assistance to state-owned enterprises: a hindrance to financial performance

This study aimed to examine whether government financial assistance influences the financial performance of state-owned enterprises. Commercial state-owned enterprises in South Africa that are listed under the Public Financial Management Act during the post-apartheid era from 1995 to 2017 were sampled. Government guarantees were measured as a dummy variable, while financial performance was measured by accounting measure: return on assets (ROA). Endogeneity issues were addressed, and data analysis was performed on an unbalanced panel using the two-step system GMM. The empirical evidence indicated that support by the government in the form of guarantees and subsidies has a significant negative effect on the financial performance of state-owned enterprises. This is an indication that continued government bailouts to poor performing state-owned enterprises exacerbates their poor financial performance and encourages these enterprises to become too reliant on government assistance, burdening the national fiscus. AcknowledgmentsThe author gratefully acknowledges the National Research Foundation of South Africa for the research grant and Dr Farai Kwenda for his supervision during the study.
Reconstruction of the Cenozoic deformation of the Bohai Bay Basin, North China

A well‐constrained plate deformation model may lead to an improved understanding of sedimentary basin formation and the connection between subduction history and over‐riding plate deformation. Building quantitative models of basin kinematics and deformation remains challenging often due to the lack of comprehensive constraints. The Bohai Bay Basin (BBB) is an important manifestation of the destruction of the North China Craton, and records the plate kinematic history of East Asia during the Cenozoic. Although a number of interpretations of the formation of the BBB have been proposed, few quantitative basin reconstruction models have been built to test and refine previous ideas. Here, we developed a quantitative deformation reconstruction of the BBB constrained with balanced cross‐sections and structural, stratigraphic and depositional age data. Our reconstruction suggests that the basin formation process was composed of three main stages: Paleocene‐early Eocene (65–42 Ma) extension initiation, middle Eocene‐early Oligocene (42–32.8 Ma) extension climax and post‐Oligocene (32.8–0 Ma) post‐extensional subsidence. The deformation of the BBB is spatially heterogeneous, and its velocity directions rotated clockwise during the basin formation process. The reconstruction supports the interpretation that the BBB formed via strike‐slip faulting and orthogonal extension and that the basin is classified as a composite extensional‐transtensional basin. We argue that the clockwise rotation of the basin velocity field was driven by the counter‐clockwise rotation in the direction of Pacific Plate subduction. The kinematics of the BBB imply that the Pacific Plate may have been sufficiently coupled to the over‐riding East Asian Plate during the critical period of Pacific Plate reorganization. The new reconstruction provides a quantitative basis for studies of deformation processes not only in the vicinity of the BBB, but also more broadly throughout East Asia.