Miracle-dz/UniFAR-FTUs huggingface dataset:
The Central-Bank Balance Sheet as an Instrument of Monetary Policy

While many analyses of monetary policy consider only the adjustment of a central bank’s target for a short-term nominal interest rate, other dimensions of policy have recently been of greater importance: changes in the supply of bank reserves beyond those required to achieve an interest-rate target, changes in the assets acquired by central banks, and changes in the interest rate paid on reserves. We extend a standard New Keynesian model to allow a role for the central bank’s balance sheet in equilibrium determination, and consider the connections between these alternative dimensions of policy and traditional interest-rate policy. We distinguish between \quantitative easing" in the strict sense and targeted asset purchases by a central bank, and argue that while the former is likely be inefiective at all times, the latter dimension of policy can be efiective when flnancial markets are su‐ciently disrupted. Neither is a perfect substitute for conventional interest-rate policy, but purchases of illiquid assets are particularly likely to improve welfare when the zero lower bound on the policy rate is reached. We also consider optimal policy with regard to the payment of interest on reserves, and argue that the interest rate on reserves should be kept near the central bank’s target for the policy rate at all times.
Measuring Central Bank Communication: An Automated Approach with Application to FOMC Statements

We present a new automated, objective and intuitive scoring technique to measure the content of central bank communication about future interest rate decisions based on information from the Internet and news sources. We apply the methodology to statements released by the Federal Open Market Committee (FOMC) after its policy meetings starting in 1999. Using intra-day financial quotes, we find that short-term nominal Treasury yields respond to changes in policy rates around policy announcements, whereas longer-dated Treasuries mainly react to changes in policy communication. Using lower frequency data, we find that changes in the content of the statements lead policy rate decisions by more than a year in univariate interest rate forecasting and vector autoregression (VAR) models. When we estimate Treasury yield responses to the shocks identified in the VAR, we find communication to be a more important determinant of Treasury rates than contemporaneous policy rate decisions. These results are consistent with the view that the FOMC releases information about future policy rate actions in its statements and that market participants incorporate this information when pricing longer-dated Treasuries. Finally, we decompose realized policy rate decisions using a forward-looking Taylor rule model. Based on this decomposition, we find that FOMC statements contain significant information regarding both the predicted rule-based interest rate and the Taylor-rule residual component, and that content of the statements leads the residual by a few quarters.
The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded

Abstract. Observations of ocean-driven grounding-line retreat in the Amundsen Sea Embayment in Antarctica raise the question of an imminent collapse of the West Antarctic Ice Sheet. Here we analyse the committed evolution of Antarctic grounding lines under the present-day climate. To this aim, we first calibrate a sub-shelf melt parameterization, which is derived from an ocean box model, with observed and modelled melt sensitivities to ocean temperature changes, making it suitable for present-day simulations and future sea level projections. Using the new calibration, we run an ensemble of historical simulations from 1850 to 2015 with a state-of-the-art ice sheet model to create model instances of possible present-day ice sheet configurations. Then, we extend the simulations for another 10 000 years to investigate their evolution under constant present-day climate forcing and bathymetry. We test for reversibility of grounding-line movement in the case that large-scale retreat occurs. In the Amundsen Sea Embayment we find irreversible retreat of the Thwaites Glacier for all our parameter combinations and irreversible retreat of the Pine Island Glacier for some admissible parameter combinations. Importantly, an irreversible collapse in the Amundsen Sea Embayment sector is initiated at the earliest between 300 and 500 years in our simulations and is not inevitable yet – as also shown in our companion paper (Part 1, Hill et al., 2023). In other words, the region has not tipped yet. With the assumption of constant present-day climate, the collapse evolves on millennial timescales, with a maximum rate of 0.9 mm a−1 sea-level-equivalent ice volume loss. The contribution to sea level by 2300 is limited to 8 cm with a maximum rate of 0.4 mm a−1 sea-level-equivalent ice volume loss. Furthermore, when allowing ice shelves to regrow to their present geometry, we find that large-scale grounding-line retreat into marine basins upstream of the Filchner–Ronne Ice Shelf and the western Siple Coast is reversible. Other grounding lines remain close to their current positions in all configurations under present-day climate.
Telecommuting: A viable option for medical physicists amid the COVID‐19 outbreak and beyond

The impact of recent outbreak of novel coronavirus disease, COVID-19, to the global healthcare systems is unprecedently enormous. Like many other clinical disciplines, medical physics has encountered unique challenges during this special period in wider aspects from clinical practice, research, administration to education. As hospitals implement various preventive and control measures to contain the virus, medical physicists are asked to perform non-essential activities by telecommuting or work-from-home (WFH) in many places.
Global and local fluctuations of winter and summer simulations with the GLAS climate model

Winter and summer simulations were carried out with an improved version of the GLAS general circulation model. An improved method of computing the boundary layer fluxes, and a more realistic specification of the albedo of snow and ice covered surfaces were used. Each particular diagnostic quantity was computed from the model data and each of the 15 years of observations in precisely the same way, wherever possible. The reported observational results are averaged over the 15 winters or summers, as appropriate.
Accurate Target Geolocation and Vision-Based Landing with Application to Search and Engage Missions for Miniature Air Vehicles

ACCURATE TARGET GEOLOCATION AND VISION-BASED LANDING WITH APPLICATION TO SEARCH AND ENGAGE MISSIONS FOR MINIATURE AIR VEHICLES D. Blake Barber Department of Mechanical Engineering Master of Science Miniature air vehicles (MAVs) have attracted a large amount of interest recently both from the research community and from the public. New battery technologies as well as rapid developments in embedded processing and MEMS sensor technologies have greatly increased the potential of these vehicles. MAVs have been envisioned playing significant roles in both civil and military applications. Examples include: fire monitoring, search and rescue, traffic monitoring, crop monitoring, convoy protection, border surveillance, troop support, law enforcement, natural disaster relief, and aerial photography. The application of MAVs tends to center on the ability of the MAV to collect and deliver visual information to the user. In many applications it is important to be able to accurately geolocate items of interest in the visual data. However, the inaccuracies associated with MAV platforms have led to relatively large errors in previous attempts at geolocation. The first half of this thesis focuses on increasing the accuracy of geolocation estimates achievable using a hand-launchable MAV. To accomplish this, methods are presented for bias estimation, wind estimation, recursive least squares filtering, and optimal flight path generation. Hardware results are presented which demonstrate the ability to consistently localize targets to within 5 m regardless of wind conditions. The second half of this thesis focuses on using the high accuracy geolocation estimates to complete a search and engage mission. This is a mission in which the MAV not only locates the target, but also accurately delivers a payload to the target site. The focus is on delivering an attached payload via accurate landing at the target site. A vision-based landing approach is presented which is robust to both wind and moving targets. Simulation results are presented which demonstrate the effectiveness of the control.
A Publication of the Association of Management AN INDUCTION MODEL OF INFORMATION TECHNOLOGY ENABLED KNOWLEDGE MANAGEMENT : A CASE STUDY SHOUHONG WANG UNIVERSITY OF MASSACHUSETTS DARTMOUTH

Knowledge management (KM) has become an important discipline in the field of management. Yet, few induction models of IT enabled KM are available for research and teaching in the literature. This paper presents the development of an induction model based on five real-life cases of successful KM. Based on a so-called Joint Qualitative Analysis, this case study has identified several common aspects of the IT enabled KM process. In brief, KM occurs when the new business strategies of the organization requires KM. New IT strategies and new organizational strategies are then developed to align with the new business strategies to implement KM. A crucial component of the IT enabled KM is the development, the use, and the maintenance of IT supported products and services for KM. The IT supported products and services foster the transformation between information, and explicit and tacit knowledge. The development of metrics and measures for KM assessment is a key task of the KM process. The induction model is significant as it supports KM process design in the context of
Development and Initial Validation of a Scale to Measure Engagement with eHealth Technologies

In eHealth, engagement is viewed as an important factor in explaining why interventions are beneficial to some and not to others. However, a shared understanding of what engagement is and how to measure it, is missing. This paper presents the set-up of the development and initial validation of a new scale to measure engagement with eHealth interventions, based on scientific literature and interviews with users and experts. Furthermore, it presents the preliminary results of a systematic review, 11 interviews with engaged users and the first version of the new engagement scale. It is expected that the final scale, which will be based on theoretical and empirical research and focus on the different components of engagement, will enable researchers to investigate what features and forms of technology influence individuals' engagement and thereby pave the way to create more engaging technologies.
Four Years of Global Cirrus Cloud Statistics Using HIRS, Revised

Abstract : Trends in global upper tropospheric transmissive cirrus cloud cover are beginning to emerge from a four year cloud climatology using NOAA polar orbiting HIRS multispectral infrared data. Cloud occurrence, height, and effective emissivity are determined with the CO2 slicing technique on the four years of data (June 1989 - May 1993). There is a global preponderance of transmissive high clouds, 42% on the average; about three fourths of these are above 500 hPa and presumed to be cirrus. In the ITCZ a high frequency of cirrus (grater than 50%) is found at all times; a modest seasonal movement tracks the sun. Large seasonal changes in cloud cover occur over the oceans in the storm belts at mid-latitudes; the concentrations of these clouds migrate north and south with the seasons following the progressions of the subtropical highs (anticyclones). More cirrus is found in the summer than in the winter in each hemisphere. This paper reports on the investigation of seasonal changes with multispectral observations from polar orbiting HIRS (High resolution Infrared Radiation Sounder).
ACA-28, an anticancer compound, induces Pap1 nuclear accumulation via ROS-dependent and -independent mechanisms in fission yeast

The nucleocytoplasmic transport of proteins is an important mechanism to control cell fate. Pap1 is a fission yeast nucleocytoplasmic shuttling transcription factor of which localization is redox regulated. The nuclear export factor Crm1/exportin negatively regulates Pap1 by exporting it from the nucleus to the cytoplasm. Here, we describe the effect of an anti-cancer compound ACA-28, an improved derivative of 1'-acetoxychavicol acetate (ACA), on the subcellular distribution of Pap1. ACA-28 induced nuclear accumulation of Pap1 more strongly than did ACA. ROS inhibitor N-acetyl-L-cysteine (NAC) partly antagonized the Pap1 nuclear accumulation induced by ACA-28. NAC almost abolished Pap1 nuclear localization upon H 2 O 2 , whereas leptomycin B (LMB)-mediated inhibition of Pap1 nuclear export was resistant to NAC. Collectively, ACA-28-mediated apoptosis in cancer cells may involve ROS-dependent and -independent mechanisms.
SW approaches MESH survey, R/V Celtic Explorer cruise CE0705, BGS project 2007/06 : operations report

The aims of the R/V Celtic Explorer cruise were to acquire high resolution multibeam, sub-bottom profiler and camera data in the SW Approaches area, located approximately 320km southwest of Land’s End. The cruise not only mapped the variable morphology of the SW Approaches area, but also investigated the biological communities within the canyon system for the assessment of potential Special Areas of Conservation (SAC) under the EC Habitats and Birds Directive (Annex I) (Johnston et al. 2002). The cruise also tested the application of the survey standards and protocols developed under the MESH project. The cruise was the first thorough test for the recently completed MESH Guidance Framework, providing a ‘proof of concept’ from planning to completion.
UNI ScholarWorks UNI ScholarWorks

NAND flash memory is used in flash drives, smart phones, and memory cards for digital cameras. While there are ways to recover data from deleted memory, there are no universal or efficient ways to recover data from NAND flash memory. When a user clicks “delete” on a file in this type of memory, the file is not necessarily deleted, but may just be hidden. This means these files are still on the chip, but are inaccessible through normal means. The ability to recover this lost data could help computer forensic examiners during investigations and corporations working to use secure deletion techniques of confidential files. This project will provide a potential solution to recovering data from NAND flash memory. This research is a continuation of previous research where some code was written in Python using processes. The previous attempt to write this software resulted in software that was slow and would not scale well to large storage devices. This research explores whether software can be rewritten to take advantage of parallel computer execution on multiple processor cores to run and finish execution in a reasonable amount of time that would scale well to larger chip sizes, creating an efficient means of analyzing deleted data from NAND flash memory.
The effects of differential feeding on ileum development, digestive ability and health status of newborn calves

Pre-weaning is the most important period for the growth and development of calves. Intestinal morphology, microbial community and immunity are initially constructed at this stage, and even have a lifelong impact on calves. Early feeding patterns have a significant impact on gastrointestinal development and microbial communities. This study mainly analyzed the effects of three feeding methods on the gastrointestinal development of calves, and provided a theoretical basis for further improving the feeding mode of calves. it is very important to develop a suitable feeding mode. In this study, we selected nine newborn healthy Holstein bull calves were randomly selected and divided into three groups (n = 3), which were fed with starter + hay + milk (SH group), starter + milk (SF group), total mixed ration + milk (TMR group). After 80 days of feeding Feeding to 80 days of age after, the ileum contents and blood samples were collected, and the differences were compared and analyzed by metagenomic analysis and serum metabolomics analysis. Results show that compared with the other two groups, the intestinal epithelium of the SH group was more complete and the goblet cells developed better. The feeding method of SH group was more conducive to the development of calves, with higher daily gain and no pathological inflammatory reaction. The intestinal microbial community was more conducive to digestion and absorption, and the immunity was stronger. These findings are helpful for us to explore better calf feeding patterns. In the next step, we will set up more biological replicates to study the deep-seated reasons for the differences in the development of pre-weaning calves. At the same time, the new discoveries of neuro microbiology broaden our horizons and are the focus of our future attention.
PRMT7 Inhibits the Proliferation and Migration of Gastric Cancer Cells by Suppressing the PI3K/AKT Pathway via PTEN

Protein arginine methyltransferase 7 (PRMT7) plays a crucial role in tumor occurrence and development; however, its expression pattern, biological function, and specific mechanism in gastric cancer (GC) remain poorly defined. The present study aimed to investigate the role of PRMT7 during GC carcinogenesis and its underlying mechanism. We found that PRMT7 is expressed at low levels in GC tissues, and this low expression is associated with tumor size, differentiation degree, lymph node metastasis, and TNM stage. Functionally, PRMT7 inhibits GC cell proliferation and migration. Mechanistically, PRMT7 induces PTEN expression and suppresses the downstream PI3K/AKT signaling cascade. Finally, we confirmed that PRMT7 interacts with PTEN protein and promotes PTEN arginine methylation. Taken together, our findings suggest that PRMT7 can inhibit PI3K/AKT signaling pathway activation by regulating PTEN, thereby inhibiting GC cell proliferation and migration. PRMT7 may be a promising therapeutic target for the prevention of GC.
“Who am I?” Identity, Evaluation, and Differential Equations

1 In this paper we study the connection between the use of evaluative language and the building of both personal and social identities, from the perspective of Dynamical System Theory . We primarily discuss two issues: 1) The use of evaluation (in the sense given to the term by Alba-Juez and Thompson (forthcoming)) as a means to the construction of both individual and group identities, thus exploring how the connection between linguistic choices and social identities is shaped by interactional needs for stancetaking. In order to illustrate this connection, we examine examples of the use of evaluative language in a web social network, and we analyze some of the discourse elements showing ways of positioning that act as catalysts for the emergence of a multifactorial dynamic system of identities. 2) The consideration of Dynamical System Theory (DST) as a theoretical framework for the modeling of language and identity. Although originally a mathematical theory, DST has been adopted by cognitive science as a valid framework for the study of cognitive phenomena, on the grounds that natural cognition is a dynamical phenomenon. Within the realm of (socio) linguistics and pragmatics, this study is to a certain degree in line with some recent studies such as Gibbs (2010), Geeraerts, Kristiansen and Peirsman (2010), or Moreno Fernández (2012). Thus, we herein focus on how linguistic evaluation intervenes in the intricate dynamical system of identity, and even though we do not engage in complex mathematical disquisition, we argue that the idea and philosophical foundation underlying DST can lead us towards the ‘integration’ of the complex equation of identity construction, and that consequently the field has great potential for further research.
Effect of Fitspiration on State Self-Esteem Among Young Adults

ABSTRACT Media trends are widely prevalent on social media sites, and have demonstrated the ability to influence people’s perceptions, beliefs, and attitudes. The present study examined the fitness and health-focused media trend of “fitspiration” and its effects on the state self-esteem of young adult males and females. The study is one of the first to examine fitspiration in an Indian context and amongst an Asian population and contributes to the growing literature concerning media trends, body image, and self-esteem in women and men. The sample consisted of 61 undergraduate and postgraduate students aged 18–25 years, recruited through convenience sampling. A pretest posttest control group design was used and data was collected using a personal demographic sheet and state self-esteem scale (SSES). Pretest group equivalence was statistically ascertained and then pre-post comparison analysis was done for male and female participants separately. Contrary to expectations, findings revealed that fitspiration caused a significant increase in the social state self-esteem of females. The findings have been discussed based on the Self-Discrepancy Theory. The study contributes to the limited literature on media trends in an Asian setting and has valuable implications for the fields of social, health, and sports psychology, as well as advertising.
Changes in the spatial distribution of total phosphorus in sediment and water column of a shallow subtropical lake

Abstract Julian PJ II, Schafer T, Cohen MJ, Jones P, Osborne TZ. 2023. Changes in the spatial distribution of total phosphorus in sediment and water column of a shallow subtropical lake. Lake Reserv Manage. 39:213–230. In shallow lakes, interactions between bed sediment and the water column strongly influence the availability and transport of nutrients. Lake Okeechobee, in South Florida, is a eutrophic, shallow, polymictic lake that exhibits frequent mixing of the water column and resuspension of unconsolidated sediments. The objective of this study was to evaluate the temporal and spatial patterns of water and sediment characteristics and evaluate the linkage of sediment and water column total phosphorus (TP) concentrations. Spatiotemporal generalized additive models identified key periods during which both surface water total suspended solids (TSS) and TP increased, corresponding to hurricane and tropical storm activity. Our models identified regions with persistently greater water column concentrations than the lake average, indicating potential hot spots in resuspension processes and/or internal loading. Sediment bulk density (BD) and TP were inversely correlated, indicating that light, less dense sediments have greater TP concentrations, potentially contributing to the redistribution of sediments and P. An integrated evaluation of surface water and sediment characteristics using a generalized additive model revealed that sediment TP strongly influences water column TP concentrations, potentially explaining the spatial distribution of surface water TP concentrations. The area of the lake with sediment TP concentration ≤500 mg/kg is increasing while the low bulk density sediments area is decreasing, marking a potential improvement in sediment conditions. If this trend persists, it indicates that the lake is increasingly storing P in sediments that can resist entrainment, with significant implications for assessing the trajectory of lake restoration.