Miracle-dz/UniFAR-FTUs huggingface dataset:
Recruiting the CEO from the Board: Determinants and Consequences

We investigate an increasingly prevalent CEO succession strategy - recruiting CEOs from the firms’ board of directors (Director-CEOs). Director-CEO appointments may be part of a planned succession because Director-CEO combine insiders’ firm-specific knowledge with outsiders’ new perspectives. Conversely, Director-CEO appointments may signal succession failures when boards could not find a new CEO. Consistent with the latter, we find that Director-CEO appointments are associated with negative market reaction, deterioration in performance, and shorter ex-post tenure. We find no evidence that poor firm quality drives the results. Overall, Director-CEO appointments are a distinct succession strategy that has important consequences for firm performance.
A comparative study on cluster validity criteria in linear fuzzy clustering and pareto optimality analysis

Cluster validation is an important issue in cluster analysis. In this paper, a comparative study on validity criteria is performed with linear fuzzy clustering that can be identified with a local PCA technique. Besides the standard fuzzification approach, the entropy regularization approach is responsible for fuzzification of data partition and the approach implies a close relation between FCM-type linear fuzzy clustering and probabilistic PCA models. This comparative study reveals mutual differences between two fuzzification approaches from the view point of cluster validation using several cluster validity criteria. Additional characteristics are shown in a pareto analysis, in which the effect of noise sensitivity is also discussed.
Initial Experience with High Frequency Ultrasound for the Newborn C57BL Mouse

The mouse has become a powerful genetic tool for studying genes involved in cardiac development and congenital heart disease. Many of the most severe congenital heart defects are ductal‐dependent, resulting in neonatal lethality. Recent advances in ultrasound technology provide an opportunity for the use of high‐frequency transducers to characterize the cardiac anatomy and physiology of the newborn mouse. In this study, we define limited normative values for cardiac structure and function in the C57BL newborn mouse. Specifically, we define normal values for 19 indices derived from standard echocardiographic views. This study demonstrates that transthoracic echocardiography using a 40‐MHz high‐frequency transducer is a safe and reliable noninvasive modality for the delineation of cardiac anatomy and physiology in the newborn mouse.
Inoculum-Dependent Division Lag of Bacillus Cultures and Its Relation to an Endogenous Factor(s) (“Schizokinen”)

Lankford, C. E. (The University of Texas, Austin), James R. Walker, James B. Reeves, N. H. Nabbut, B. R. Byers, and R. J. Jones. Inoculum-dependent division lag of Bacillus cultures and its relation to an endogenous factor(s) (“schizokinen”). J. Bacteriol. 91:1070–1079. 1966. —When cells of Bacillus megaterium, grown on Brain Heart Infusion Agar, were inoculated into a chemically defined medium, they exhibited a division lag which was an inverse function of inoculum size. The addition of filtrates of cultures from the same medium eliminated the inoculum-dependent component of lag, but not an inoculum-independent residual lag of constant duration. Culture filtrate of B. subtilis var. niger not only eliminated its inoculum-dependent lag but also was required to sustain exponential division. Dose-response and “growth time” bioassays, developed to measure lag-reducing activity of filtrates, demonstrated accumulation of active filtrate factor to a “critical” concentration prior to division initiation. Addition of this concentration to cultures eliminated the inoculum-dependent lag. Accumulation of the factor ceased temporarily at onset of division, but excretion was resumed later during exponential growth. Accumulation of a lag-reducing, cell-associated factor followed a similar course. Chromatographic and bioautographic analyses of culture filtrates of B. megaterium indicated that a single substance was primarily responsible for their activity. Results of dose-response tests for reciprocal activities of filtrates of different Bacillus species and strains suggested production of different factors by some, and of different quantities of similar factors by others. It is proposed that such endogenous factors which are synthesized and accumulate to a population-dependent concentration as a requisite to initiation and maintenance of division be designated as “schizokinens. ”
Localized light induced thermionic emission from intercalated carbon nanotube forests

In this work, we studied light induced thermionic emission from potassium intercalated carbon nanotube forests. Several recipes were developed for the intercalation process. The intercalated CNT forest was employed as the emitter of a light activated thermionic emission device. The resulting thermionic device was characterized by studying its current-voltage characteristics when illuminated by a focused laser beam. Based on the amount of current drop vs time, the value of workfunction reduction was estimated to be about 0.7 eV. Current-voltage characteristics were obtained at several incident light powers. Thermionic emission of potassium ions from the surface of the forest was observed at lower biases. In another set of experiments, in-situ intercalation of carbon nanotube forests was accomplished. The current-voltage characteristics were captured at different times during a period of 72 hours. It was observed that the workfunction has been reduced by 1.1 eV.
Timewatch The Social Analysis Of Time

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Recherche d'images par l'analyse factorielle des correspondances

A new approach for content based image retrieval uses Factorial Corr espondence Analysis (FCA), inspired from the use of FCA in textual analysis (TA). We g et better results with FCA than with other classical methods such as: TF*IDF or pLSA. We alr eady propose a new prototype for image retrieval using inverted files based on the contribu tion of images to the intertia of axes.
Finnish WorldSkills Achievers’ Vocational Talent Development and School-to-Work Pathways

This paper examines the perceptions of vocational expertise and school-to-work pathways among WorldSkills Competition (WSC) achievers and their co-workers and employers within the Finnish context. At the biennial international WSC, young people (aged 18-to-23 years) from over 60 countries demonstrate their skills in more than 40 trades. Individualized training for this competition is provided through the cooperation of vocational institutions (e.g., expert coaches, team leaders and competition panellists) and industry (e.g., mentors, sponsors, materials, equipment). Semi-structured thematic interviews (N=51) were conducted in 2013 and 2014 with former Finnish WSC medal or diploma winners (n=18) who had since begun their working lives (1-to-15 years of work experience). Their employers (n=16) and colleagues (n=17) were also interviewed. Results showed that in addition to vocation-specific knowledge and skills, problem-solving skills, creativity, social skills and self-regulatory skills were acknowledged as the most significant elements of vocational expertise. The findings also indicated that formal vocational education combined with deliberate practice and training based on expert mentoring improved the long-term career progress and vocational expertise of the WSC achievers.
The lived experience of mothering after prison: The preliminary study

The purpose of this interpretive phenomenological preliminary study was to gain a better understanding of the experience of mothering after prison. In-depth interviewing was conducted with two participants for a period of 4 months after their release from prison. All interviews were focused on the research question, “What has been your experience of mothering since your release from prison? ” Data were analyzed using thematic analysis. The following four themes emerged: “always the mother,” “separation anxiety,” “new demands: divided loyalties,” and “the honeymoon is over. ”
REGARDING “ALCOHOL USE, COMORBIDITY, AND MORTALITY”

teaching tool and provides opportunities for advocacy and future research. Although prevention would be the best approach we still have a long way to go in terms of identifying its risk factors or predisposing conditions. Only dementia and depression have been proven to be predictors of self-neglect. Although important in the thinking and planning of further methodologically solid research, it is probably premature to accept as a fact ‘‘primary and secondary subtypes’’ of self-neglect. We urgently need to move the field beyond case reports and theories and start testing the various hypotheses that researchers have generated over the last several decades. It is possible that frontal lobe dysfunction will be a significant pathophysiological pathway, yet we are almost certain, even with the little we know about self-neglect at this point, that it will not be the only pathway, unless all predisposing factors are somehow linked to the frontal lobe. Much like delirium or falls, we expect that there are a multitude of underlying causes that interact to produce the syndrome of self-neglect. Until we identify and understand the various risk factors, we will not be able to answer that question. A neuroimaging study could definitely help to shed light on this interesting hypothesis. (We know of at least one such study that is in the planning stages.) We know that self-neglect is common at least in older adults, is associated with other geriatric syndromes, and leads to morbidity and mortality. We hope that soon we will also report on the missing link for its association with functional decline (unpublished data), which will solidify its place in the world of geriatric syndromes. Yet we still do not know what causes it. The field desperately needs welldesigned observational studies to move forward and eventually test prevention or intervention strategies.
Digital Futures, Digital Transformation: From Lean Production to Acceluction

This book provides an integrated overview of key trends in digital transformation, taking into consideration five interrelated dimensions: strategy and business models, society, organization, technology and regulation. As such, it provides a framework for the analysis of digital business transformation and its emerging factors, analyzing twenty-five key trends in terms of their future impact. On that basis, the book then delineates a new approach centered on the mutually accelerating links between multiple value creation spaces. It proposes a new mode of production – accelerated production of links (acceluction) – and analyzes it with respect to the still-dominant concept of lean production. Based on the results of the international CIGREF research program ISD, the book presents a valuable perspective of the expected impact of the abundance of networks and data as critical resources for enterprises beyond 2020. Download ebook, read file pdf From Lean Production to Acceluction
Where are the siblings? A re-evaluation of the relationship between birth order and college attendance.

A more detailed analysis of factors contributing to the overrepresentation of first-borns in college populations is afforded by comparisons of years of schooling between siblings. Analysis of educational differences within twochild families reveals that: (1) first-borns attain significantly more education than their last born siblings only when the firstand last-born are of the opposite sex and (2) there is an overrepresentation of the cross-sex twochild family in three independent samples. The widely reported overrepresentation of first-borns in college is thus a function of not only ordinal position, but also sex of the subject and sex of the sibling.
Overexpression of the triose phosphate translocator (TPT) complements the abnormal metabolism and development of plastidial glycolytic glyceraldehyde‐3‐phosphate dehydrogenase mutants

The presence of two glycolytic pathways working in parallel in plastids and cytosol has complicated the understanding of this essential process in plant cells, especially the integration of the plastidial pathway into the metabolism of heterotrophic and autotrophic organs. It is assumed that this integration is achieved by transport systems, which exchange glycolytic intermediates across plastidial membranes. However, it is unknown whether plastidial and cytosolic pools of 3-phosphoglycerate (3-PGA) can equilibrate in non-photosynthetic tissues. To resolve this question, we employed Arabidopsis mutants of the plastidial glycolytic isoforms of glyceraldehyde-3-phosphate dehydrogenase (GAPCp) that express the triose phosphate translocator (TPT) under the control of the 35S (35S:TPT) or the native GAPCp1 (GAPCp1:TPT) promoters. TPT expression under the control of both promoters complemented the vegetative developmental defects and metabolic disorders of the GAPCp double mutants (gapcp1gapcp2). However, as the 35S is poorly expressed in the tapetum, full vegetative and reproductive complementation of gapcp1gapcp2 was achieved only by transforming this mutant with the GAPCp1:TPT construct. Our results indicate that the main function of GAPCp is to supply 3-PGA for anabolic pathways in plastids of heterotrophic cells and suggest that the plastidial glycolysis may contribute to fatty acid biosynthesis in seeds. They also suggest a 3-PGA deficiency in the plastids of gapcp1gapcp2, and that 3-PGA pools between cytosol and plastid do not equilibrate in heterotrophic cells.
Distance Learning Technologies as Facilitators of Learning and Learning-Related Student Activities

The present study investigates perceptions experienced users of distance learning technologies hold regarding the ability of various technologies to facilitate learning. The study offers empirical data suggesting web-based distance learning technologies (both static and dynamic) are perceived by students as facilitators of learning. However, non web-based technologies (specifically) videoconferencing are perceived to have little or no effect on student learning.
Inventory Management, a Decision Support Framework to Improve Operational Performance

Enterprise Resource Planning systems have been introduced to support the efficient and effective execution of business processes. In practice, this may not fully succeed. This also holds in particular for inventory management (IM), which forms a part of supply chain management. Within this research, by analyzing the IM business process theoretically, eleven potential benefits are indicated. Next, by using a Business Intelligence approach, key performance indicators (KPIs) are selected to measure the performance of IM sub-processes. Integration of these approaches yields an IM performance decision support framework that can be used to obtain a generic, coherent picture of the fundamental IM processes in an organization. In addition, by tracking and analyzing KPI measurements, adequate decisions can be prepared towards the improvement of the operational IM performance. The proposed framework is validated using experts’ opinions and a comparative case study. The experts’ comments yielded a list of top-10 KPIs, based on the measurements of which a set of quick wins can be determined. The case study results show that some of the identified potential benefits are also observed in practice. Future research may reveal that comparable performance improvements are possible in other IM environments (and even in other supply chain domains) based on similar decision support frameworks.
Deletions within the amino-terminal half of the c-src gene product that alter the functional activity of the protein

To examine how amino acid sequences outside of the catalytic domain of pp60c-src influence the functional activity of this protein, we have introduced deletion mutations within the amino-terminal half of pp60c-src. These mutations caused distinct changes in the biochemical properties of the c-src gene products and in the properties of cells infected with retroviruses carrying these mutant c-src genes. Cells expressing the c-srcNX protein, which contains a deletion of amino acids 15 to 89, displayed a refractile, spindle-shaped morphology, formed intermediate-sized, tightly packed colonies in soft agar, and contained elevated levels of cellular phosphotyrosine-containing proteins. Thus, deletion of amino acids 15 to 89 can activate the kinase activity and transforming potential of the c-src gene product. Deletion of amino acids 112 to 225, however, did not increase the kinase activity or transforming ability of pp60c-src; indeed, deletion of these sequences in c-srcHP suppressed phenotypic alterations induced by pp60c-src. Cells expressing the c-srcNP or c-srcBS gene products (containing deletions of amino acids 15 to 225 and 55 to 169, respectively) displayed a fusiform, refractile morphology and formed diffuse colonies in soft agar; the mutant proteins displayed an increased in vitro protein-tyrosine kinase activity. However, only a few cellular proteins contained elevated levels of phosphotyrosine in vivo. Thus, deletions downstream of amino acid 89 severely restricted the ability of c-src to phosphorylate cellular substrates in vivo without affecting the intrinsic tyrosine kinase activity of the c-src gene product. These results suggest the existence of at least two modulatory regions within the amino-terminal half of pp60c-src that are important for the regulation of tyrosine kinase activity and for the interaction of pp60c-src with cellular substrates.
The substitution method

This paper deals with Hilbert's substitution method for eliminating bound variables from first order proofs. With a first order system S framed in the ε-calculus [2] the problem is to associate a system S' without bound variables and an effective procedure for transforming derivations in S into derivations in S′. The transform of a formula A derived in S is to be an “ε-substitution instance” of A, i.e. it is obtained by replacing terms εxB(x) in A by terms of S′. In general the choice of these terms will depend on the particular derivation of A, and not on A alone. Cf. [4]. The present formulation sharpens Hilbert's original statement of the problem, i.e. that the transform of A should be finitistically verifiable, by making explicit the methods of verification used, namely those formalized in S′; on the other hand, it generalizes Hilbert's formulation since S′ need not be restricted to finitist systems. The bound variable elimination procedure can always be taken to be primitive recursive in (the Gödel number of) the derivation of A. Constructions which transcend primitive recursion can simply be built into S′. In this paper we show that if S′ is taken to be a second order system with constants for functionals, then the existence of suitable ε-substitution instances can be expressed by the solvability of certain functional equations in S′. We deal with two cases here. If S is number theory without induction, i.e. essentially predicate calculus with identity, then we can solve the equations in question by taking for S′ the free variable part S* of S with an added rule of definition of functionals by cases (recursive definition on finite ordinals), which is a conservative extension of S*.
Efficient predictive control of PMSM drives fed by 3L-NPC power converters: A cyber physical system approach

A cyber-physical system (CPS) approach for branch and bound algorithm (BnB) based model predictive control (MPC) of permanent magnet synchronous machine (PMSM) drive system fed by three-level NPC inverter is proposed in this work. The proposed control strategy deals with both the physical states and a cyber state, i.e. the sampling frequency. With the help of cyber controller, the cyber resource and sampling rate are regulated based on the performance of the physical system and the reference cyber state. This novel control scheme presents a new way of regulating PMSM drive systems, achieving higher computational efficiency. Besides, the proposed CPS controller achieves better performances comparing to the classical BnB-MPC solution, which is validated through simulation data.
A Simple Enzyme-Immunoassay (EIA) Test for Factor VIII-Related Antigen (VIIIAGN)

Summary An enzyme immunoassay (EIA) system has been developed to measure factor VIII- related antigen (VIIIAGN). This assay gives similar results to the commonly used Laurell electroimmunodiffusion (EID) assay for VIIIAGN as shown by comparison of both techniques with samples from healthy controls, patients with hemophilia A, and patients with von Willebrand’s disease. The assay also has a greater precision than the EID technique as demonstrated by multiple assays of aliquots of a single sample. The use of this EIA test for VIIIAGN is simple and employs inexpensive reagents and equipment. The use of expensive antisera is minimized. EIA for VIIIAGN has the advantage of increased sensitivity compared to Laurell EIA.
Execution of data-dependent programs over encrypted data

Fully homomorphic encryption (FHE) is a tool of key importance to organize computations over encrypted data. But its misuse leads to privacy violation in spite of the encryption security. To use FHE correctly in applications one needs to solve a number of rather sophisticated problems. This paper considers delegation of programs evaluation over encrypted data to the untrusted server in the case when algorithms for evaluation are public. The main question in this case is how to organize computations in such a way that their structures don't reveal any information about the encrypted data. This information is called data-dependence. The aim of the study is to construct such protocols for interaction with untrusted server that don't allow it accurately determine the relationship between the amount of computations and the encrypted data. The known solutions to the problem are briefly reviewed, analyzed and their disadvantages are shown. Then we present our three protocols for secure computations. The first protocol solves the problem by hiding the exact number of steps from untrusted server. This is achieved by intentional delay of feedback from the client and without any transformation of the evaluated program. The second protocol simplifies client actions, allowing computation to be fully self-contained. It requires only two communications between the client and server while ensuring the final result achievement and keeping the perfect secrecy. But it significantly increases the amount of computations that server must perform, namely for any input data server carries out the greatest possible number of steps. And third protocol involves the functional encryption. It allows getting final result of computations surely in two interactions between client and server, while not overloading the server too much. Such a protocol is well suited even for computations with worst-case exponential complexity.