bluuebunny/crossref_metadata_2025_split huggingface dataset:
Semiconductor Multilayer Nanometrology with Machine Learning
Authors: Kwak Hyunsoo , Kim Jungwon 
Published: May 2023

AbstractWe review the measurement methods and thickness characterization algorithms of semiconductor multilayer devices. Today’s ultrahigh-density, high-energy-efficient three-dimensional semiconductor devices require an iterative semiconductor layer-stacking process. Accurate determination of nanometer-scale layer thickness is crucial for reliable semiconductor device fabrication. In this paper, we first review the commonly used semiconductor multilayer thickness measurement methods, including destructive and nondestructive measurement methods. Next, we review two approaches for thickness characterization: model-based algorithms using a physical interpretation of multilayer structures and a method using data-driven machine learning. With the growing importance of semiconductor multilayer devices, we anticipate that this study will help in selecting the most appropriate method for multilayer thickness characterization.
“Programming Is Not That Hard!” When a Science Center Visit Increases Young Women’s Programming Ability Beliefs
Authors: Tellhed Una , Björklund Fredrik , Kallio Strand Kalle , Schöttelndreier Karolin 
Published: May 2023

AbstractTo increase engagement with science and technology, young people around the world are encouraged to attend activities at science centers. But how effective are these activities? Since women have weaker ability beliefs and interest in technology than men, it is especially important to learn how science center visits affect them. In this study, we tested if programming exercises offered to middle school students by a Swedish science center would increase ability beliefs and interest in programming. Students in grades 8 and 9 (n = 506) completed a survey before and after visiting the science center, and their ratings were compared to a wait-list control group (n = 169). The students participated in block-based, text-based, and robot programming exercises developed by the science center. The results showed that programming ability beliefs increased for women, but not men, and that interest in programming decreased for men, but not women. The effects persisted at a follow-up (2–3 months). The young men reported stronger ability beliefs and interest than the young women at all timepoints. The results imply that science center activities can make programming feel less hard, but adaptations may be needed to also increase interest.
A Sociodemographic Analysis of the Impact of COVID-19-Related Schools’ Closure on the Diet and Physical Activity of Children and Adolescents in Qatar
Authors: Abed Alah Muna , Abdeen Sami , Selim Nagah , Tayar Elias , Al-Dahshan Ayman , Kehyayan Vahe , AlDahnaim Layla , Bougmiza Iheb 
Published: May 2023

Abstract
Objectives
To assess the impact of the COVID-19-related closure of government schools in Qatar on children and adolescents' dietary habits and physical activities and associated sociodemographic factors.

Methods
An analytical cross-sectional study was conducted between June and August 2022 utilizing the national electronic health records system in Qatar to extract a sampling frame of students enrolled in governmental schools, specifically targeting students in 3rd to 9th grades, stratified by sex and developmental stage. A stratified sampling technique was employed to randomly select a proportionate number of students from each stratum, and data were collected through telephone interviews with the parents of selected students.

Results
A total of 1546 interviews were completed by the end of the study. Of the included sample, 845 (54.7%) were between 8 and 11 years of age (middle childhood), while the rest were 12–15 years old (young teens and teenagers). Male to female ratio was almost 1:1. We found a significant decrease in the intake of vegetables, increases in the intake of soft drinks, fried food, fast food, and sweets, and a reduction in physical activity during schools’ closure compared to before. Higher parental educational levels, maternal employment, and having a positive family history of obesity and/or overweight in first-degree relatives were significantly associated with adverse lifestyle changes during schools’ closure.

Conclusion
The trends of lifestyle changes reported in this study during the periods of COVID-19-related schools’ closure were found to be going in a health-compromising direction. These results underscore the importance of implementing targeted interventions to promote healthy lifestyles during such disruptions and emphasize the need to address lifestyle changes beyond emergencies and outbreaks to mitigate potential long-term health consequences, including the increased risk of non-communicable diseases.
Real-world experience with cefiderocol therapy for Pseudomonas aeruginosa and other multidrug resistant gram-negative infections within the Veterans Health Administration, 2019–2022
Authors: Chou Andrew , Ramsey David , Amenta Eva , Trautner Barbara W. 
Published: May 2023

Abstract

Objective:
Single-center and regional studies have reported outcomes after treatment with cefiderocol, a novel siderophore cephalosporin. We report on real-world use, clinical outcomes, and microbiological outcomes with cefiderocol therapy within the Veterans’ Health Administration (VHA).

Design:
Prospective, observational descriptive study.

Setting:
Veterans’ Health Administration, 132 sites across the United States, during 2019–2022.

Patients:
This study included patients admitted to any VHA medical center who received cefiderocol for ≥2 days.

Methods:
Data were obtained from the VHA Corporate Data Warehouse and through manual chart review. We extracted clinical and microbiologic characteristics and outcomes.

Results:
In total, 8,763,652 patients received 1,142,940,842 prescriptions during the study period. Of these, 48 unique individuals received cefiderocol. The median age of this cohort was 70.5 years (IQR, 60.5–74), and the median Charlson comorbidity score was 6 (IQR, 3–9). The most common infectious syndromes were lower respiratory tract infection in 23 patients (47.9%) and urinary tract infection in 14 patients (29.2%). The most common pathogen cultured was P. aeruginosa in 30 patients (62.5%). The clinical failure rate was 35.4% (17 of 48), and 15 (88.2%) of these 17 patients died within 3 days of clinical failure. The 30-day and 90-day all-cause mortality rates were 27.1% (13 of 48) and 45.8% (22 of 48), respectively. The 30-day and 90-day microbiologic failure rates were 29.2% (14 of 48) and 41.7% (20 of 48), respectively.

Conclusions:
In this nationwide VHA cohort clinical and microbiologic failure occurred in >30% of patients treated with cefiderocol, and >40% of these died within 90 days. Cefiderocol is not widely used, and many of the patients who received it had substantial comorbidities.
Superscars for arithmetic point scatters II
Authors: Kurlberg Pär , Lester Stephen , Rosenzweig Lior 
Published: May 2023

Abstract
We consider momentum push-forwards of measures arising as quantum limits (semiclassical measures) of eigenfunctions of a point scatterer on the standard flat torus

${\mathbb T}^2 = {\mathbb R}^2/{\mathbb Z}^{2}$

. Given any probability measure arising by placing delta masses, with equal weights, on

${\mathbb Z}^2$

-lattice points on circles and projecting to the unit circle, we show that the mass of certain subsequences of eigenfunctions, in momentum space, completely localizes on that measure and are completely delocalized in position (i.e., concentration on Lagrangian states). We also show that the mass, in momentum, can fully localize on more exotic measures, for example, singular continuous ones with support on Cantor sets. Further, we can give examples of quantum limits that are certain convex combinations of such measures, in particular showing that the set of quantum limits is richer than the ones arising only from weak limits of lattice points on circles. The proofs exploit features of the half-dimensional sieve and behavior of multiplicative functions in short intervals, enabling precise control of the location of perturbed eigenvalues.
Strategies to prevent surgical site infections in acute-care hospitals: 2022 Update
Authors: Calderwood Michael S. , Anderson Deverick J. , Bratzler Dale W. , Dellinger E. Patchen , Garcia-Houchins Sylvia , Maragakis Lisa L. , Nyquist Ann-Christine , Perkins Kiran M. , Preas Michael Anne , Saiman Lisa , Schaffzin Joshua K. , Schweizer Marin , Yokoe Deborah S. , Kaye Keith S. 
Published: May 2023

Abstract and purposeThe intent of this document is to highlight practical recommendations in a concise format designed to assist acute-care hospitals in implementing and prioritizing their surgical-site infection (SSI) prevention efforts. This document updates theStrategies to Prevent Surgical Site Infections in Acute Care Hospitalspublished in 2014.1This expert guidance document is sponsored by the Society for Healthcare Epidemiology of America (SHEA). It is the product of a collaborative effort led by SHEA, the Infectious Diseases Society of America (IDSA), the Association for Professionals in Infection Control and Epidemiology (APIC), the American Hospital Association (AHA), and The Joint Commission, with major contributions from representatives of a number of organizations and societies with content expertise.
Holocene hydroclimatic variability recorded in sediments from Maddox Lake (northern California Coast Range)
Authors: Kirby Matthew , Barbosa Jazleen , Carlin Joe , MacDonald Glen , Leidelmeijer Jenifer , Bonuso Nicole , Han Jiwoo , Nauman Benjamin , Avila Judith , Woodward Alex , Obarr Sophia , Poulsen Cody , Nichols Kevin , Ramezan Reza 
Published: May 2023

AbstractPerspectives on past climate using lake sediments are critical for assessing modern and future climate change. These perspectives are especially important for water-stressed regions such as the western United States. One such region is northwestern California (CA), where Holocene-length hydroclimatic records are scarce. Here, we present a 9000-year, relative lake level record from Maddox Lake (CA) using a multi-indicator approach. The Early Holocene is characterized by variably low lake levels with a brief excursion to wetter climates/relative highstand ca. 8.4–8.06 cal ka BP, possibly related to the 8.2 ka cold event and changing Atlantic Meridional Overturning Circulation (AMOC). From 5.2–0.55 cal ka BP, Maddox Lake experienced a long-term regression, tracking changes in summer-winter insolation, tropical and northeast Pacific SSTs, and the southward migration of the ITCZ. This gradual regression culminated in a pronounced relative lowstand during the Medieval Climatic Anomaly (MCA). A marked relative highstand followed the MCA, correlative to the Little Ice Age. The latter reflects a far-field response to North Atlantic volcanism, solar variability, and possibly changes in AMOC and Arctic sea ice extent. Our results further confirm the hydroclimatic sensitivity of northwest California to various forcings including those emanating from the North Atlantic.
Rejoicing of the hearts: Turkish constructions of Muslim whiteness in Africa south of the Sahara
Authors: Güner Ezgi 
Published: May 2023

AbstractThis article analyses the racial framing of the humanitarian encounter between Turkish and African Muslims as a trope of first contact. Intensifying humanitarian relations with Africa south of the Sahara, in tandem with the foreign policy of the AKP (Justice and Development Party), has led to the emergence of a racialized affective regime in Turkey that endows Islamic philanthropy with new racial meanings. This article argues that racial subjects such as the White Muslim and the Black Muslim are produced through the affective labour of humanitarian volunteers and others, who narrativize and circulate experiences of first contact in Turkey. Based on a multi-sited ethnography in Turkey, Tanzania, Senegal, Gambia and Benin, this article explores race-making as affective labour. Taking on Berg and Ramos-Zayas’s call for an anthropological theorization of race and affect, it develops a critical framework to examine how humanitarian voluntarism produces differently racialized subjects. In order to do so, this analysis draws on James Baldwin’s insights into the racial and affective politics of the first contact to discuss how Turkish humanitarians build on and alter the racialized affective regime Baldwin describes.
Effect of postruminal supply of linseed oil in dairy cows: 1. Production performance and fate of postruminally available α-linolenic acid
Authors: Gervais Rachel , Rico Daniel E. , Peňa-Cotrino Sara M. , Lebeuf Yolaine , Chouinard P. Yvan 
Published: May 2023

AbstractTriacylglycerols (TAG) are the primary sources of preformed fatty acids (FA) for lipid synthesis in the mammary gland. However, polyunsaturated FA escaping ruminal biohydrogenation are selectively incorporated into cholesterol esters (CE) and phospholipids (PL). The aim of the current experiment was to study the effects of abomasal infusion of increasing amount of linseed oil (L-oil) on plasma distribution of α-linolenic acid (α-LA) and its transfer efficiency into milk fat. Five rumen-fistulated Holstein cows were randomly distributed in a 5 × 5 Latin square design. Abomasal infusion of L-oil (55.9% α-LA) was performed at the rate of 0, 75, 150, 300, and 600 ml/d. Concentrations of α-LA increased quadratically in TAG, PL, and CE; a less steep slope was observed with an inflexion at an infusion rate of 300 ml L-oil per day. The increase in plasma concentration of α-LA was of a lower magnitude in CE as compared with the other two fractions, resulting in a quadratic decrease in relative proportion of this FA circulating as CE. The transfer efficiency into milk fat increased from 0 to 150 ml L-oil infused, and a plateau was maintained thereafter with greater levels of infusion (quadratic response). This pattern resembles the quadratic response of the relative proportion of α-LA circulating as TAG, and the relative concentration of this FA in TAG. Increasing the postruminal supply of α-LA partly overcame the segregation mechanism of absorbed polyunsaturated FA in different plasma lipid classes. Proportionately more α-LA was then esterified as TAG, at the expense of CE, increasing its efficiency of transfer into milk fat. This mechanism appears to be surpassed in its turn when L-oil infusion was increased over 150 ml/d. Nevertheless, the yield of α-LA in milk fat continued to increase, but at a slower rate at the highest levels of infusion.
Harnessing ‘Wasted’ Waters: Conservation, Hydropower and the Origins of Chile's National Electrification Plan
Authors: de Montmollin Peter B. 
Published: May 2023

AbstractThis article examines the origins of national electrification in Chile, situating its technocratic promoters within a broad trend – unfolding across Latin America – toward the ‘rational’ management and conservation of natural resources by the state. It surveys the early history of Chilean electrification (1890s–1940s) to show how conservationist thinking flowed through discussions and debates among engineers about the proper uses of the country's waters. These ideas eventually shaped the 1943 national electrification plan, which focused on hydropower. The article sheds new light on the history of Chile's technocracy, the relationship between perceptions of the environment and development planning, and the political and economic debates over national electrification. It also shows how the conservationist dilemma of using versus preserving natural resources operated within a utilitarian and highly technical framework for thinking about nature's bounty. The article thus contributes to recent historical scholarship on conservation and environmental technocrats in Latin America.
Might contain traces of Lotus: The limits of exclusive flag state jurisdiction in the Norstar and the Enrica Lexie cases
Authors: Csernus Máté 
Published: May 2023

AbstractThe article scrutinizes some of the surprising commonalities in the reasonings of two recent decisions by two separate judicial forums: the ITLOS’s judgment in the M/V Norstar case and the award of an ad hoc arbitral tribunal in the Enrica Lexie case. One key connection between the two decisions is their heavy reliance on the Lotus judgment of the PCIJ. Another similarity between the two disputes is that both of them revolve around the concept of exclusive flag state jurisdiction under UNCLOS Article 92(1) and adjacent questions of jurisdiction on the high seas. The article is going to subject both decisions to criticism and argue that some of the more problematic positions adopted by the tribunals in both cases amount to no more than obiter dicta – thus establishing an additional parallel with Lotus, which also received heavy criticism for its controversial obiter dictum. The two tribunals’ new-found interest in Lotus also provides an opportunity to discuss the utility and legal weight of Lotus as a precedent in the face of a century of developments in treaty law and judicial practice. In this sense, this article builds on and attempts to continue the recent trend in scholarship advocating for a renewed appreciation of the Lotus case against the backdrop of decades of criticism against it. Accordingly, the article aims to facilitate a better understanding of all three disputes, the principles they applied, and the dynamics of international adjudication and international law in general.
Percutaneous approach to residual pulmonary bifurcation stenosis in conotruncal diseases
Authors: Castaldi Biagio , Di Candia Angela , Cuppini Elena , Sirico Domenico , Reffo Elena , Padalino Massimo , Vida Vladimiro , Di Salvo Giovanni 
Published: May 2023

AbstractResidual stenosis after right ventricle outflow tract surgery represents a major issue to manage in the children and adult patient with conotruncal defects. Despite a detailed multimodality imaging, the anatomy of distal pulmonary trunk and pulmonary artery bifurcation may be challenging in these patients.The aim of this study was to analyse retrospectively the outcome of the percutaneous transcatheter treatment in children with post-surgical stenosis of pulmonary artery bifurcation.We enrolled 39 patients with a median age of 6.0 years. Standard high-pressure balloon dilation was attempted in 33 patients, effective in 5 of them. Pulmonary branch stenting was performed in 10 patients, effective in 6. A kissing balloon approach was chosen in 17 patients (6 after angioplasty or stenting failure), and this technique was effective in 16 cases. Finally, a bifurcation stenting was performed in 10 patients (second step in 9 cases), effective in all the cases. None of the patients approached by kissing balloon needed a bifurcation stenting.In conclusion, standard balloon angioplasty and standard stenting might be ineffective in post-surgical stenosis involving pulmonary artery bifurcation. In this population, kissing balloon or bifurcation stenting, followed by side branch de-jailing, may be more effective in relieving the gradient.
The effect of long-term use of methylphenidate on cardiac autonomic functions and ventricular arrhythmogenesis: a prospective case–control study
Authors: Ozdemir Rahmi , Tanır Yaşar , Demir Batuhan Berk , Yılmaz Seheryeli , Geçkalan Soysal Damla , Karadeniz Cem 
Published: May 2023

AbstractObjective:We aimed to assess cardiac autonomic balance with heart rate variability by using 24-hour Holter electrocardiography and also to assess susceptibility to ventricular arrhythmias by using microvolt T wave alternance in children with attention deficit hyperactivity disorder.Method:This study was conducted with age- and gender-matched groups of 40 patients taking long-acting methylphenidate for more than a year and 55 healthy controls. Heart rate variability analysis for cardiac autonomic functions and microvolt T wave alternance measurements for susceptibility to ventricular arrhythmias were evaluated by 24-hour Holter electrocardiography.Results:The mean age 10.9 ± 2.7 years, mean duration of therapy 22.76 months, and mean methylphenidate doses were 37.64 mg/day. The study group had considerably higher rMSSD, higher HF, and a lower LF/HF ratio (respectively, p : 0.02, p : 0.001 and p : 0.01). While parasympathetic activity parameters were elevated, sympathetic activity parameters were low during the sleep period. Increase in the microvolt T wave alternance values of the study group was not found to be statistically significant (p > 0.05).Conclusion:In children taking long-acting methylphenidate, the autonomic balance was shown to be in favour of the parasympathetic system. Determination of the vulnerability to life-threatening ventricular arrhythmias has been evaluated for the first time in children with attention deficit hyperactivity disorder. Accordingly, microvolt T-wave alternance values give the notion that drug use is safe.
Consensus Standard for Evidence Integration into EMS Education and High-Stakes Testing
Authors: Gage Christopher B. , Terry Mark , McKenna Kim D. , Powell Jonathan R. , Hollern Megan , Ozanich Matt , Richards Christopher T. , Martin-Gill Christian , Panchal Ashish R. 
Published: May 2023

AbstractBackground:Incorporating emerging knowledge into Emergency Medical Service (EMS) competency assessments is critical to reflect current evidence-based out-of-hospital care. However, a standardized approach is needed to incorporate new evidence into EMS competency assessments because of the rapid pace of knowledge generation.Objective:The objective was to develop a framework to evaluate and integrate new source material into EMS competency assessments.Methods:The National Registry of Emergency Medical Technicians (National Registry) and the Prehospital Guidelines Consortium (PGC) convened a panel of experts. A Delphi method, consisting of virtual meetings and electronic surveys, was used to develop a Table of Evidence matrix that defines sources of EMS evidence. In Round One, participants listed all potential sources of evidence available to inform EMS education. In Round Two, participants categorized these sources into: (a) levels of evidence quality; and (b) type of source material. In Round Three, the panel revised a proposed Table of Evidence. Finally, in Round Four, participants provided recommendations on how each source should be incorporated into competency assessments depending on type and quality. Descriptive statistics were calculated with qualitative analyses conducted by two independent reviewers and a third arbitrator.Results:In Round One, 24 sources of evidence were identified. In Round Two, these were classified into high- (n = 4), medium- (n = 15), and low-quality (n = 5) of evidence, followed by categorization by purpose into providing recommendations (n = 10), primary research (n = 7), and educational content (n = 7). In Round Three, the Table of Evidence was revised based on participant feedback. In Round Four, the panel developed a tiered system of evidence integration from immediate incorporation of high-quality sources to more stringent requirements for lower-quality sources.Conclusion:The Table of Evidence provides a framework for the rapid and standardized incorporation of new source material into EMS competency assessments. Future goals are to evaluate the application of the Table of Evidence framework in initial and continued competency assessments.