Miracle-dz/UniFAR-FTUs huggingface dataset:
Transition and Temporalities: Spanning Temporal Boundaries as Projects End and Operations Begin

As projects end and operations begin, we argue that transition involves boundary-spanning work to ensure continuity across changing forms of organizing. A study of transition in the London megaproject ecology (Heathrow Terminal 5, London 2012 Olympics, and Crossrail) is used to build new theoretical insight into how transition is accomplished. We find that multiple temporalities meet and disjunctures emerge, with stability to close projects sought as interorganizational futures shift. Our work extends the research on temporal boundary spanning, to articulate how disjunctures and shifts are managed, and continuity is enhanced, through the use of artifacts, procedures, soft landings, and tests.
Deformation of Air Bubbles Near a Plunging Jet Using a Machine Learning Approach

The deformation of air bubbles in a liquid flow field is of relevant interest in phenomena such as cavitation, air entrainment, and foaming. In complex situations, this problem cannot be addressed theoretically, while the accuracy of an approach based on Computational Fluid Dynamics (CFD) is often unsatisfactory. In this study, a novel approach to the problem is proposed, based on the combined use of a shadowgraph technique, to obtain experimental data, and some machine learning algorithms to build prediction models. Three models were developed to predict the equivalent diameter and aspect ratio of air bubbles moving near a plunging jet. The models were different in terms of their input variables. Five variants of each model were built, changing the implemented machine learning algorithm: Additive Regression of Decision Stump, Bagging, K-Star, Random Forest and Support Vector Regression. In relation to the prediction of the equivalent diameter, two models provided satisfactory predictions, assessed on the basis of four different evaluation metrics. The third model was slightly less accurate in all its variants. Regarding the forecast of the bubble’s aspect ratio, the difference in the input variables of the prediction models shows a greater influence on the accuracy of the results. However, the proposed approach proves to be promising to address complex problems in the study of multi-phase flows.
How do close-circuit television cameras impact crimes and clearances? An evaluation of the Milwaukee police department’s public surveillance system

ABSTRACT This study uses quasi-experimental analyses to estimate the effectiveness of police-operated CCTV cameras in Milwaukee, Wisconsin. Most studies have focused on how cameras can deter crime. But, like many other agencies, the Milwaukee Police Department strategically deployed their cameras in high-crime, high-traffic intersections to aid criminal investigations. Thus, this study examines the impact of CCTV cameras on crimes and crime clearances. We also examine the differential impacts of CCTV in three treatment groups: all intersections that received a new camera, intersections where new cameras were installed alongside existing cameras, and intersections where only new cameras were installed. We used propensity score matching to create comparison groups of camera-free intersections, then employed difference-in-differences estimation with negative binomial and Poisson panel regression models to determine whether CCTV cameras have an impact on various categories of crimes and clearances. Despite overall crime declines in Milwaukee during the study period, we found that treatment intersections experienced more crimes post-intervention than comparison areas, likely because camera operators were using them to detect incidents that would have otherwise gone unreported. We also found limited evidence that CCTV cameras improve clearances.
A set of microsatellite DNA markers for the one‐lined pencilfish Nannostomus unifasciatus, an Amazonian flooded forest fish

The one-lined pencilfish Nannostomus unifasciatus is a small fish from the flooded forests of the Amazon basin. Pencilfish are popular in aquaria and are used as ornamental fishery resource by riverine communities from central Amazonia. Here we report a set of nine microsatellite loci for N. unifasciatus . Number of alleles and heterozygosity per locus in a sample of 30 pencilfish ranged from 4 to 19 and from 0.39 to 0.86, respectively. These markers will prove useful to investigate population genetic structure, identify conservation units, and to conduct phylogeographical reconstructions in pencilfish from the flooded forests of Amazonia.
Large Herbivore Effects on Songbirds in Boreal Forests: Lessons from Deer Introduction on Anticosti Island

Abstract: Over recent decades, deer populations have reached densities exceeding their natural range of variability in several regions worldwide. Abundant deer populations can change the composition and structure of understory plant communities in forests and trigger trophic cascades affecting animal communities. To investigate such indirect effects on boreal forest songbirds we compared the understory vegetation and songbird communities of balsam fir stands on Anticosti Island (Quebec, Canada), where white-tailed deer (Odocoileus virginianus) were introduced, to those of the neighbouring Mingan Archipelago, where deer are absent. Mean cover of trees at 0–2 m height was on average sevenfold higher on Mingan than on Anticosti, and songbirds dependent on the understory were more common on Mingan than on Anticosti. Songbird community composition was more variable on Mingan, suggesting that the opening of the forest understory on Anticosti through intensive browsing homogenized the songbird community by reducing the occurrence of understory-dependent species. These indirect effects on songbirds were similar, although less dramatic, than those described in temperate forests. We interpret this as a consequence of lower productivity and complexity in understory vegetation of boreal forests. Our results emphasize the negative effects of abundant deer populations on animal diversity and underline the role played in the dynamics of communities by top down factors that regulate herbivore populations.
Assessment of Incorporation of Lessons From Tobacco Control in City and County Laws Regulating Legal Marijuana in California

Key Points Question What legal limits have cities and counties adopted since California legalized marijuana use for adults, and to what extent do these legal limits incorporate public health recommendations and lessons from tobacco control? Findings This cross-sectional study of all 539 California cities and counties found that jurisdictions differed widely in how they regulated marijuana and that key public health recommendations and lessons from tobacco control have generally not been adopted, although local innovation is emerging. Meaning Jurisdictions undergoing marijuana legalization may need to consider incorporating policy lessons from control of other legal but harmful products to reduce potential future burden of harm.
GENETIC CONTROL OF THE ANTIBODY RESPONSE

CBA and C57 mice were tested for their ability to make an immune response to a related series of branched, multichain synthetic polypeptide antigens in which the antigenic determinants on the amino termini of the branched side chains were systematically varied. Neither strain responded to the polyglutamic acid determinant. Both strains responded well and equally to the poly(phenylalanine, glutamic acid) determinants. CBA mice responded poorly, and C57 mice responded well to two different antigens bearing poly(tyrosine, glutamic acid) determinants. CBA mice responded well, and CS7 mice responded poorly to two different antigens bearing poly(histidine, glutamic acid) determinants. The genetic control of the immune response to (H,G)-A--L appears to be dominant and polygenic, as it has been shown to be for (T,G)-A--L. The related antigens used in this study show extensive cross-reactions with antisera against other members of the related series.
Gold as a Strategic Prophecy against Inflation and Exchange Rate

The study investigates the role of gold as a strategic prophecy against inflation and exchange rate. The main research question of the present study is whether gold has acted as a hedge against inflation and exchange rate for India. Study has evaluated monthly data of gold price, inflation and exchange rate over the period January 1991 to September 2012. By applying Augmented Dickey Fuller unit root test, Johansen Cointegration test and Granger Causality test in Error Correction Model framework, study concludes that Gold Price and Exchange rate are I (1) and Inflation is I (2. It also concludes that there exists long run equilibrium relation among all three variables. However, study provides evidence of no Granger Causality among these variables. By applying ARCH-LM test, heteroskedasticity was detected and Gold price can be modeled as GARCH (1, 1). A negative relationship was found between gold and inflation which suggests that gold acts as an internal hedge against inflation for India. Major implication of this study is that Indian investor should prefer gold investment in the time of inflation boom.
Molecular phylogeny and ultrastructure of two novel parasitic dinoflagellates, Haplozoon gracile sp. nov. and H. pugnus sp. nov.

ABSTRACT This study describes two novel parasitic dinoflagellates: Haplozoon gracile sp. nov. isolated from a bamboo worm (Maldanidae), ‘cf. Petaloclymene sp. ’ sensu Kobayashi et al. 2018; and, H. pugnus sp. nov. isolated from Nicomache sp. and Nicomache personata (Maldanidae). Trophonts (feeding stages) were observed with light, scanning, and transmission electron microscopy. Molecular phylogenetic analyses were performed based on 18S rDNA. COI sequences were obtained for host organisms. Trophonts of H. gracile were linear (single longitudinal row) and relatively slender with a mean length of 190 μm, and consisted of a long and narrow trophocyte, rectangular gonocytes (mean width = 10 μm), and slightly rounded sporocytes. Trophonts of H. pugnus were pectinate (1–8 rows of sporocytes in one plane), with a mean length of 179 μm, consisting of a bulbous trophocyte, rectangular gonocytes (mean width = 25 μm), and rounded sporocytes. The body of both species was covered with many depressions that overlaid the amphiesmal vesicles. TEM observations of trophocytes in H. gracile revealed a stylet with a central dense core and rich mitochondria subtending the amphiesma. Furthermore, amphiesmal vesicles appeared to contain thecal plates in both species. Phylogenetic analyses generally resolved a Haplozoon clade, and H. gracile and H. pugnus were clearly distinguished from other species for which molecular data are available. Based on the morphological and host comparisons with all described species and their molecular phylogeny, we conclude that these two isolates are new species of Haplozoon, H. gracile sp. nov. and H. pugnus sp. nov.
Human Mesenchymal Stem Cells Overexpressing Interleukin 2 Can Suppress Proliferation of Neuroblastoma Cells in Co-Culture and Activate Mononuclear Cells In Vitro

High-dose recombinant interleukin 2 (IL2) therapy has been shown to be successful in renal cell carcinoma and metastatic melanoma. However, systemic administration of high doses of IL2 can be toxic, causing capillary leakage syndrome and stimulating pro-tumor immune response. One of the strategies to reduce the systemic toxicity of IL2 is the use of mesenchymal stem cells (MSCs) as a vehicle for the targeted delivery of IL2. Human adipose tissue-derived MSCs were transduced with lentivirus encoding IL2 (hADSCs-IL2) or blue fluorescent protein (BFP) (hADSCs-BFP). The proliferation, immunophenotype, cytokine profile and ultrastructure of hADSCs-IL2 and hADSCs-BFP were determined. The effect of hADSCs on activation of peripheral blood mononuclear cells (PBMCs) and proliferation and viability of SH-SY5Y neuroblastoma cells after co-culture with native hADSCs, hADSCs-BFP or hADSCs-IL2 on plastic and Matrigel was evaluated. Ultrastructure and cytokine production by hADSCs-IL2 showed modest changes in comparison with hADSCs and hADSCs-BFP. Conditioned medium from hADSC-IL2 affected tumor cell proliferation, increasing the proliferation of SH-SY5Y cells and also increasing the number of late-activated T-cells, natural killer (NK) cells, NKT-cells and activated T-killers. Conversely, hADSC-IL2 co-culture led to a decrease in SH-SY5Y proliferation on plastic and Matrigel. These data show that hADSCs-IL2 can reduce SH-SY5Y proliferation and activate PBMCs in vitro. However, IL2-mediated therapeutic effects of hADSCs could be offset by the increased expression of pro-oncogenes, as well as the natural ability of hADSCs to promote the progression of some tumors.
PID vs LQR controller for tilt rotor airplane

The main thematic of this paper is controlling the main manoeuvers of a tilt rotor UAV airplane in several modes such as vertical takeoff and landing, longitudinal translation and the most important phase which deal with the transition from the helicopter mode to the airplane mode and visversa based on a new actuators combination technique for specially the yaw motion with not referring to rotor speed control strategy which is used in controlling the attitude of a huge number of vehicles nowadays. This new actuator combination is inspired from that the transient response of a trirotor using tilting motion dynamics provides a faster response than using rotor speed dynamics. In the literature, a lot of control technics are used for stabilizing and guarantee the necessary manoeuvers for executing such task, a multiple Attitude and Altitude PID controllers were chosen for a simple linear model of our tilt rotor airplane in order to fulfill the desired trajectory, for reasons of complexity of our model the multiple PID controller doesnt take into consideration all the coupling that exists between the degrees of freedom in our model, so an LQR controller is adopted for more feasible solution of complex manoeuvering, the both controllers need linearization of the model for an easy implementation.
Variance partitioning of stream diatom, fish, and invertebrate indicators of biological condition

Abstract. Stream indicators used to make assessments of biological condition are influenced by many possible sources of variability. To examine this issue, we used multiple-year and multiple-reach diatom, fish, and invertebrate data collected from 20 least-disturbed and 46 developed stream segments between 1993 and 2004 as part of the US Geological Survey National Water Quality Assessment Program. We used a variance-component model to summarize the relative and absolute magnitude of 4 variance components (among-site, among-year, site × year interaction, and residual) in indicator values (observed/expected ratio [O/E] and regional multimetric indices [MMI]) among assemblages and between basin types (least-disturbed and developed). We used multiple-reach samples to evaluate discordance in site assessments of biological condition caused by sampling variability. Overall, patterns in variance partitioning were similar among assemblages and basin types with one exception. Among-site variance dominated the relative contribution to the total variance (64–80% of total variance), residual variance (sampling variance) accounted for more variability (8–26%) than interaction variance (5–12%), and among-year variance was always negligible (0–0.2%). The exception to this general pattern was for invertebrates at least-disturbed sites where variability in O/E indicators was partitioned between among-site and residual (sampling) variance (among-site = 36%, residual = 64%). This pattern was not observed for fish and diatom indicators (O/E and regional MMI). We suspect that unexplained sampling variability is what largely remained after the invertebrate indicators (O/E predictive models) had accounted for environmental differences among least-disturbed sites. The influence of sampling variability on discordance of within-site assessments was assemblage or basin-type specific. Discordance among assessments was nearly 2× greater in developed basins (29–31%) than in least-disturbed sites (15–16%) for invertebrates and diatoms, whereas discordance among assessments based on fish did not differ between basin types (least-disturbed = 16%, developed = 17%). Assessments made using invertebrate and diatom indicators from a single reach disagreed with other samples collected within the same stream segment nearly ⅓ of the time in developed basins, compared to ⅙ for all other cases.
Knowledge Management and Organizational Performance: Mediating Role of Organizational Learning: A Study of Corporate Sector in Pakistan

1. Assistant professor Department of Business Administration University of Sahiwal, Punjab, Pakistan 2. Assistant Professor, Department of Management Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Punjab, Pakistan 3. M S Scholar, Department of Management Sciences, Bahauddin Zakariya University, Multan, Punjab, Pakistan PAPER INFO ABSTRACT Received: April 25, 2020 Accepted: June 15, 2020 Online: June 30, 2020 The purpose of this paper is to observe the role of organizational learning and knowledge management in organizational performance of service sector in Pakistan. The key aim for carrying on this research is to acknowledge the growing importance of knowledge management and organizational learning for organizations working in this knowledge economy. In Pakistan, service sector is an important source of economic development and on the while, it is facing fierce competition in the marketplace because of the following factors such as the world has now changed to a global village thus industry boundaries are collapsing and regulatory organizations are becoming deregulatory resulting continual and abrupt changing environmental trends. The rate of learning should be parallel to the rate of change taking place. Thus, there is an immense need for organizations to manage their intangible asset i.e. human knowledge. For empirical analysis, a measurement scale was adapted and the questionnaires were distributed among 60 organizations working in Islamabad/Rawalpindi, Lahore, Multan, and Bahawalpur. The study employed SPSS and AMOS for analyses. The study found strongly positive correlations between knowledge management, organizational learning, and organizational performance
Time Series Modelling of The Volume of Overland Timber Export in The Bolgatanga Municipality

Aims/ Objectives: This research was carried out with the intention of using time series to model the volume of overland timber exported within Bolgatanga municipalityPlace and Duration of Study: Study of the time series was based on a historical data of the volume of timber exported for twenty consecutive years, from 1999 to 2019 within Bolgatanga municipality.Methodology: The three-stage iterative modeling approach for Box Jenkins was used to match an ARIMA model and to forecast both the amount of timber export and the confiscated lumber. ARIMA method incorporates a cycle of autoregressive and a moving average. The three-stage iterative modeling technique of Box Jenkins which were used are model recognition, parameter estimation and/or diagnostic checks were also made. Results: From the preliminary investigation, the study showed that the amount of timber exported in municipality is skewed to the right, suggesting that much of the amount of timber exported is below the average. This, together with the high volatility in the volume of timber exported, indicates that the amount of timber exported within the municipalities during the twenty-year period was low. The plots from the trends also showed robust variations in the volume of timber exported indicating that timber exporters do not have better grips with the concepts and applications of export technology, hence the erratic nature of the volume of timber exported over the period. The quadratic pattern and the ARIMA (1,1,1) model best represented the amount of timber exported.The analysis further indicated that there will be a further decrease in the amount of timber export from the five years projection into the future. Over the last two decades the Bayesian approach to VAR has gained ground. For a future report, this estimation method will be followed to examine the ”long-run equilibrium relationships” between timber export volumes and climate change.Conclusion: The quadratic pattern and the ARIMA (1,1,1) model best represented the amount of timber exported. There will be a further decrease in the amount of timber export from the five years projection into the future.
Changes of free and conjugated abscisic acid and phaseic acid in xylem sap of drought-stressed sunflower plants

When part of the root system of rice plants is exposed to drought stress, the ABA concentration in the Abscisic acid (ABA), conjugated abscisic acid, phaseic xylem sap increases and the leaf conductance decreases acid (PA), and conjugated phaseic acid were deter- (Bano et al., 1993). It is probable that this ABA accumu- mined by enzyme-linked immunosorbent assay (ELISA) lation in the xylem sap is the result of ABA biosynthesis and gas chromatography (GC) in xylem sap of of well- in the roots (Parry and Horgan, 1992). It has been shown watered and drought-stressed sunflower plants. that substantial amounts of ABA can also be imported Conjugated ABA and conjugated PA were determined from the soil solution into xylem vessels (Freundl et al., indirectly after chemical or enzymatic hydrolysis. 1998). In several recent papers it has been proposed that Conjugated ABA was found to be the predominant ABA root-borne ABA is transported via the xylem into the metabolite in xylem sap. In xylem sap from well- leaves where this phytohormone is responsible for watered plants at least five, and in sap from drought- stomatal closure (Gollan et al., 1992; Schurr et al., 1992; stressed plants at least six alkaline hydrolysable ABA Tardieu et al., 1996) and other adaptive processes. There conjugates were found. One of them corresponds chro- is a considerable capacity in leaves of maize and matographically (HPLC) with abscisic acid glucose Commelina to metabolize xylem delivered ABA (Jia et al., ester (ABAGE). Under drought conditions the concen- 1996). Therefore, the rapid metabolism of root-borne trations of ABA, alkaline hydrolysable ABA conjugates, ABA in the leaves may be a further mechanism of b-glucosidase hydrolysable ABA conjugates, PA, and stomatal control. conjugated PA increased. After rewatering the Recently, it has been demonstrated that, apart from drought-stressed plants, the ABA and the conjugated ABA and cytokinins, ABA metabolites are occurring in ABA content decreased. The possible function of the the xylem sap of drought-stressed sunflower plants (Bano ABA conjugates in the xylem sap as a source of free et al., 1994). These metabolites are phaseic acid, conjug- ABA is discussed. ated phaseic acid and conjugated ABA. ABA conjugates were also found in the xylem sap of plants of castor bean