Miracle-dz/UniFAR-FTUs huggingface dataset:
Homophilly and Social Network Engagement : Evidence from a Video Gaming Network

I estimate how increased similarity with one’s friends in a social network member leads one to engage further with the social network. Participation is modeled based on user utility derived both from participating in events close to their preferred “location” and from their friends’ simultaneous participation in the event. This suggests that, even after controlling for network structure, focal users will participate more as their friends’ preferences move closer to their own. These implications are tested using panel data from an online video gaming network. Homophilly is measured by similarity in recent past video game playing choices. Because the data track users over time, I am able to test effects from deviations in similarity measures from week to week. Decomposing similarity measures based on whether the focal user’s, or her friends’, preferences are changing which helps to identify causal effects. The evidence strongly supports increased engagement from increased similarity. 1 Support by the ZEW research program Strengthening Efficiency and Competitiveness of the European Knowledge Economies (SEEK) financed by the state of Baden-Württemberg is gratefully acknowledged. Michael R. Ward, University of Texas at Arlington, Email: mikeward@uta.edu Preliminary Please do not quote
Review of Experimental Evidence for Effects of CO 2 on Calcification of Reef builders

1 C. Langdon: Lamont-Doherty Earth Observatory, Palisades, NY 10983, USA. langdon@ldeo.columbia. edu Abstract This paper reviews the experimental evidence that a rise in atmospheric CO2 will have an effect on the calcification rate of reef building organisms. There have been five studies where the carbonate chemistry of seawater has been varied between present day and what is projected if atmospheric CO2 doubles or triples. These studies found that calcification declined by an average of 25% (range 11-40%). Three older studies also varied carbonate chemistry but the treatments were extreme relative to projected changes in the next 50-100 years. These studies reported larger decreases in calcification, 36±9%, that probably should be used with caution. Based on current estimates of dissolution rates on reefs, banks and tropical shelves dissolution will not be able to buffer the drop in [CO3] over the next 50-100 years.
A Bicriteria Clustering Approach for Collaborative Filtering

Clustering is one of the essential methods of data reduction. It is possible to find homogenous sub-sets of huge amount of data by employing clustering. In collaborative filtering schemes, clustering is used to form off-line user or item neighborhoods in order to enhance online performance. Classical clustering methods for collaborative filtering are only based on distances or correlations among entities. Thus, it is hard to form neighborhoods without sacrificing any useful entity by clustering. In this paper, we introduce a new bicriteria k-means clustering approach for collaborative filtering. We employ a degree of uncertainty of users along with similarities in order to obtain a single clustering criterion. We perform experiments on two benchmark data sets in order to measure the proposed approach’s accuracy. Experimental outcomes indicate that, it is possible to improve accuracy of a recommender system using bicriteria-based k-means clustering.
Recombinant human bone morphogenetic protein-2 for correction of unilateral cleft lip and palatal: Case report

The aim of this paper was to present a case report in which a unilateral cleft lip and palate was repaired with bone graft. The 11 years old Caucasian female patient was subjected to correction of unilateral cleft lip and palatal left (left side) with the rhBMP-2 (INFUSE® Bone Graft). Bone reconstruction and including canine repositioning was planned. A one and a half mm titanium mesh (was fixed by 4 titanium screws in the adjacent bone structures), to sustain collagen sponge with the protein stays in the fissure, allowing a framework and a conformation of the alveolar process. It was observed that the secondary alveolar bone graft with rhBMP-2 contributed to the rehabilitation due to the filling of bone defects caused by fissures, favoring the eruption of the adjacent canine tooth and the health of periodontal tissue. Bone morphogenetic protein is a potential substitute in bone regeneration process.
FREQUENCY: A COMPREHENSIVE ASSESSMENT

This paper presents a comprehensive empirical analysis of flight delay impact on airfare and flight frequency in the US air transportation system. We model airfare and flight frequency as functions of cost and demand characteristics, competition effects, and flight delays at origin, destination, and intermediate hub airports. Estimation results confirm that airlines tend to pass delay cost onto passengers through higher fare, whereas delay has an upward effect on flight frequency. We find that proportionate airport delay reduction across the system can result in annual fare reduction in the order of billion dollars.
Molecular survey of zoonotic Anaplasma phagocytophilum and genetic evidence of a putative novel Anaplasma species in goats from Taif, Saudi Arabia

Aim: Genus Anaplasma is of veterinary and public health importance, and its members utilize ruminants as key hosts in their epidemiology. To date, information about the occurrence and molecular identity of Anaplasma phagocytophilum and other Anaplasma species in Saudi Arabian goats is scarce. This study aimed to molecularly detect and characterize zoonotic A. phagocytophilum and other Anaplasma spp. in goats from Taif District, KSA. Materials and Methods: Blood samples collected from 67 goats were polymerase chain reaction tested using common and A. phagocytophilum-specific primers targeting 16S rRNA and msp4 genes, respectively. Amplicons of common reactions were purified, sequenced, and analyzed. Results: Six goats yielded positive results with common primers, whereas all animals proved negative for A. phagocytophilum. Analysis of the two successfully sequenced amplicons revealed the presence of a variant strain of Anaplasma ovis (99.52% ID) and a new Anaplasma organism, which was clustered with Anaplasma bovis (95.9% ID) and Aegyptianella pullorum (94.99% ID) and distinctly separated from all other recognized species of the genus Anaplasma. Conclusion: The tested goats proved negative for A. phagocytophilum; however, we could not confirm that the area is pathogen free. A variant strain of A. ovis and a putative novel Anaplasma spp. were reported raising the concern of veterinary and zoonotic potential. Other genes should be sequenced and analyzed for complete identification of the detected organisms.
A New Algorithm for Evaluating Ordered Tree Pattern Queries

An XML tree pattern query, represented as a labeled tree, is essentially a complex selection predicate on both structure and content of an XML. Tree pattern matching has been identified as a core operation in querying XML data. We distinguish between two kinds of tree pattern matchings: ordered and unordered tree matching. By the unordered tree matching, only ancestor-descendant and parent-child relationships are considered. By the ordered tree matching, the order of siblings is also taken into account. While different fast algorithms for unordered tree matching are available, no efficient algorithm for ordered tree matching for XML data exists. In this paper, we discuss a new algorithm for processing ordered tree pattern queries, whose time complexity is polynomial. In addition, the algorithm can be adapted to an indexing environment with XB-trees being used. Experiments have been conducted, which shows that the new algorithm is promising.
Stability of User-Equilibrium Route Flow Solutions for the Traffic Assignment Problem

This paper studies stability of user equilibrium (UE) route flow solutions with respect to inputs to a traffic assignment problem, namely the travel demand and parameters in the link cost function. It shows, under certain continuity and strict monotonicity assumptions on the link cost function, that the UE link flow is a continuous function of the inputs, that the set of UE route flows is a continuous multifunction of the inputs, and that the UE route flow selected to maximize an objective function with certain properties is a continuous function of the inputs. The maximum entropy UE route flow is an example of the last. On the other hand, a UE route flow arbitrarily generated in a standard traffic assignment procedure may not bear such continuity property, as demonstrated by an example in this paper.
From economy to locality : do-support as head movement

Since the early days of Minimalism, locality and economy have been two of the dominant topics of investigation in syntactic theory, and in many domains of inquiry, the two have become finely intertwined. Often explanations of empirical phenomena switch from using the terms of one to explain problems for the other. This article makes such a contribution, explaining an outstanding problem for well-established economy conditions – namely, Last Resort do-insertion – partly in terms of an independently attested locality constraint, Attract Closest. Specifically the article argues that do-support involves movement of v, and that syntactic locality constraints and morphological conditions on the pronunciation of do conspire to provide dosupport’s apparently Last Resort nature. Evidence comes from the construction known as “British do;” I show that evidence for separating this construction from standard do-support is not compelling, and instead motivate a reanalysis of do-support with the attempt to give standard do-support and British do (and its quirks) a unified explanation. In doing so the article dispenses with the problematic violation of Inclusiveness that comes with standard “Last Resort” accounts of do-support, and it provides a solution for other empirical problems along the way. Acknowledgments: Thanks to Nigel Fabb, Jeremy Hartman and especially Carson Schütze for help and discussion. All errors are mine.
The empirical Research of The employee ` s Job Satisfaction of Cashmere Company in Mongolia

The employee job satisfaction is the key factor that influences the long-term development of enterprise. In this paper, a questionnaire survey was conducted among 185 employees from KHANBOGD cashmere company and SOR cashmere company in Mongolia, Ulan Bator. The paper found: (1) job satisfaction of cashmere enterprises is generally not high, and the difference is relatively large; (2) the staff salary, work environment, superior management elements such as the relatively low degree of satisfaction, and for the promotion of the relationship between colleagues and opportunity satisfaction is relatively high; (3) in 5 dimensions, influence the salary of the employee job satisfaction of cashmere enterprises is the largest, followed by the work environment, leadership and management, the relationship between colleagues, influence is promoted; (4) positive age seniority and job satisfaction relationship of employee, age or length of service, job satisfaction is higher, but there was no significant effect of gender on job satisfaction. The results of this study for the leadership of cashmere enterprises in Mongolia is to fully understand the attitude of the staff, effectively motivate employees, improve employee satisfaction, improve the enterprise management plays an important role, for providing reference value to enhance employee satisfaction and China similar cashmere enterprises.
Assessment of Genetic Diversity of Kauayantinik ( Bambusa blumeana Schultes f . ) from Five Plantations in the Philippines through Transferability of SSR Markers

The assessment of the genetic diversity of Kauayantinik (Bambusa blumeana Schultes f.) plantations in selected provinces such as Pangasinan (PKT), Batangas (BKT), Cebu (CKT), Iloilo (IKT) and Bukidnon (BdKT) in the Philippines using microsatellites/SSR markers that previously identified some genome sequences of other bamboo and rice species was studied. 75% of the primers screened were able to cross-amplify Kauayantinik DNA. Out of the 64 loci detected, 35.9% was found to be polymorphic. Based on Nei-Li’s similarity index, high similarity rate was observed suggesting a close relationship within populations. Pangasinan population was the most diverse source of Kauayantinik based on the expected heterozygosity within populations while Iloilo had the highest diversity rate (ca. 0.56 Nei-Li’s dissimilarity coefficient)among populations. Iloilo population was also clustered singly based on the dendrogram generated. Data gathered gave information that the endemic bamboo, Kauayantinik, has rich genetic resources that can be used for genetic improvement of the species for economic and biodiversity purposes.
O ine validation of the ERA 40 surface scheme

A new surface scheme is introduced in the upcoming ecmwf global reanalysis covering a 40-year period 1957-1997 (known as era40). The new scheme is characterized by a tiled treatment of subgrid fractions of evaporating surfaces, the use of a global vegetation database plus an associated set of model parameters, and changes into the parameterization of snow processes, the coupling of the skin layer to the soil, and the vertical soil moisture transport. Parallel to the evaluation of the global impact in the ecmwf 3D model, this tiled scheme was tested in o ine mode with data from 7 long term surface eld campaigns. The datasets cover a wide range of climate regions and surface land use and vegetation types, ranging from boreal (Boreas), tropical (Arme) and temperate (Garderen) forest, via savannah (Sebex) and prairie (Fife) to crop (Hapex-Mobilhy) and grassland (Cabauw). The o ine evaluation was primarily used for validation purposes, but gave also rise to adjusting parameter settings and/or parameterization approaches. After the combined calibration/validation exercise we can conclude that (a) the description of snow processes and surface uxes in the Boreal areas has improved signi cantly, (b) the tiling approach does not give rise to major changes in the model correspondence to data in case of grassand cropland, and (c) model performance becomes increasingly dependent on a proper choice of vegetation dependent model parameters, which gives rise to an increased number of degrees of freedom.
Bivariate Data Grid Models for Supervised Learning Note technique

In the domain of data preparation for supervised learning, filter methods for variable ranking are time efficient. However, their intrinsic univariate limitation prevents them from detecting redundancies or constructive interactions between variables. This paper introduces a new method to automatically, rapidly and reliably evaluate the predictive information of a pair of variables. It is based on a partitioning of each input variable, in intervals in the numerical case and in groups of values in the categorical case. The resulting input data grid allows to evaluate the correlation between the two input variables and the output variable. The best joint partitioning is searched owing to a Bayesian model selection approach. Intensive experiments demonstrate the benefits of the approach, especially the significant improvement of accuracy for classification tasks.
STUDIES ON BRUCHEISERINAE , WITH DESCRIPTION OF THE SECOND GENUS OF THE SUBFAMILY

The new long winged Brucheiserinae genus Flintoconis, with two species (F. gozmanyi sp. n. and F. petorcana sp. n.) is described, and additional descriptions of Brucheiser penai RIEK, 1975, as well as adult characteristics of the subfamily Brucheiserinae are given. Homologization of different parts of male of the terminalia and evaluation the similarity between the subfamilies Brucheiserinae (Neuroptera: Coniopterygidae) and Corydalinae (Megaloptera: Corydalidae) confirm the hypothesis that the family Coniopterygidae is one of the earliest taxonomic groups to diverge within the insect order Neuroptera.
The influence of habitat preference on longitudinal population composition and distribution of Groupers (Serranidae) in Chumbe Island Coral Park, Zanzibar, Tanzania

Kiswahili) Uchunguzi wa aina sita za kawaida za chewa (Serranidae) zilifanyika kwenye miamba ya magharibi iliyohifadhiwa na mashariki inayozunguka kisiwa cha Chumbe. Aina, inakadiriwa ukomavu, na upendeleo mazingira asilia ambapo aina za chewa huishi ulirekodiwa kwa kutumia vigawanyo sanifu vinavyolingana. Msingi wa viumbe kuweza kukaa katika mazingira na kupedelea kutoweka kwa mazingira ya kiikologia ya jumla ulifanywa kwa ziada kulingana kukisia na kuangalia pamoja na kutambua viumbe kuweza kukaa katika mazingira naeneo ambalo viumbe kukukua, kupata chakula na kuweza kuishi, kina, mteremko mkali , na miamba. Wingi na Uzito wa idadi jamii ya chewa walilinganishwa miongoni mwa maeneo wanayoishi kwenye miamba na ucgaguzi maeneo ya kimazingira na kuzingatia jinsi gani mazingira yanavyoathiri ueneaji na ubora wa maeneo kimazingira. Matokeo ya utafiti huu yametowa taarifa za kina juu ya utafiti uliofanywa kwenye mwamba uliohifadhiwa na zinaonyesha mabadiliko muhimu kati ya mwaka 2014 na 2018 inazifanya aina chache zinazoishi kwenye maeneo maalum Utafiti wa miamba ya karibu isiyohifadhiwa ya mashariki ya Chumbe inaonyesha kiwango cha chini aina za viumbe, utafiti huu huthibitishan matokeo ya muundo kimazingira usiofaa, kuongezeka kwa shughuli za uvuvi, na kupungua kwa ubora wa kimazingira kwa eneo hifadhi ya bahari. Hatimaye, utafiti huu unashauri ufuatiliaji wa aina za viumbe wingi haziwezi kupima ubora wa idadi ya viumbe na kushindwa, kufafanua, mabadiliko katika katika bahari yanaohusishwa kwa sababu ya tishio ambayo hawezi kushughulikiwa hata na MPA mabadiliko ya tabia nchi.
Avoiding fishy growth curves Sebasti

1. Somatic growth is a fundamental property of living organisms, and is of particular importance for species with indeterminate growth that can change in size continuously throughout their life. For example, fishes can increase in size by 2–6 orders of magnitude during their lifetime, resulting in changes in production, consumption and function at the ecosystem scale. Within species, growth rates are traded off against other life-history parameters, hence an accurate description of growth is essential to understand the comparative demography, productivity, fisheries yield and extinction risk of populations and species. 2. The growth trajectory of indeterminate growing sharks and rays (elasmobranchs) and bony fishes (teleosts) is usually modelled using a three-parameter logarithmic function, the von Bertalanffy growth function (VBGF), to describe the total length of the average individual at any given age. Recently, however, a two-parameter form has gained popularity. Rather than being estimated in the model fitting process, the third y-intercept parameter (L0) of the VBGF has been interpreted as being biologically equivalent to, and thus fixed as, the empirically estimated size at birth. 3. We tested the equivalence assumption that L0 is the same or similar to size at birth by comparing empirical estimates of size at birth available from the literature with estimates of L0 from published data from elasmobranchs, and found that even though there is an overlap of values, there is a high degree of variability between them. 4. We calculate the bias in the growth coefficient (k) of the VBGF by comparison between the twoand threeparameter estimation methods. We show that slight deviations in fixed L0 can cause considerable bias in growth estimates in the two-parameter VBGFwhile providing no benefit even whenL0 matches the true value.We show that the effect of this biased growth estimate has profound consequences for fisheries stock status. 5. We strongly recommend the use of the three-parameter VBGF and discourage use of the two-parameter VBGF because it results in substantially biased growth estimates even with slight variations in the value of fixedL0.
Distributed and Typed Role-based Access Control Mechanisms Driven by CRUD Expressions

Business logics of relational databases applications are an important source of security violations, namely in respect to access control. The situation is particularly critical when access control policies are many and complex. In these cases, programmers of business logics can hardly master the established access control policies. Now we consider situations where business logics are built with tools such as JDBC and ODBC. These tools convey two sources of security threats: 1) the use of unauthorized Create, Read, Update and Delete (CRUD) expressions and also 2) the modification of data previously retrieved by Select statements. To overcome this security gap when Role-based access control policies are used, we propose an extension to the basic model in order to control the two sources of security threats. Finally, we present a software architectural model from which distributed and typed RBAC mechanisms are automatically built, this way relieving programmers from mastering any security schema. We demonstrate empirical evidence of the effectiveness of our proposal from a use case based on Java and JDBC.
Multiple regression analysis of class teacher‘s effect on students “incremental” of academic performance

Class student achievement "increase" is affected by multiple factors, include not only schools, teachers, families, but also include the students themselves. the researchers assumed class teacher were the most important factor in affecting students ‘ academic achievement increase and devoted to discuss class teacher’s academic qualifications, job title, career age ,gender’s impact on students. Through collecting data of six thousand students(include data of their family), five hundred teachers and sixty schools , using Spss and HLM software for analysis. We get the conclusion that family background, school size, especially teacher education, gender, age, title have significant effect on students' academic achievement increase.
Benchmarking the IBM 3090 with Vector Facility

The IBM 3090 with Vector Facility is an extremely interesting machine because it combines very good scaler performance with enhanced vector and multitasking performance. For many IBM installations with a large scientific workload, the 3090/vector/MTF combination may be an ideal means of increasing throughput at minimum cost. However, neither the vector nor multitasking capabilities are sufficiently developed to make the 3090 competitive with our current worker machines for our large-scale scientific codes.
Labour market policies and youth unemployment

The CUPESSE project aims at analysing the causes and effects of youth unemployment in Europe to promote the economic self-sufficiency and entrepreneurship of young adults. CUPESSE brings together both young and advanced researchers with different disciplinary backgrounds (economics, political science, psychology, sociology, and statistics) from ten different Member States and Associated Countries.