bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Impact of Migration on Productivity: Evidence from the United Kingdom
Authors: Campo Francesco , Forte Giuseppe , Portes Jonathan 
Published: April 2024

Abstract
The UK saw a sharp rise in work-related migration, particularly from the EU, in the 2000s and 2010s, with profound impacts on the labour market. We investigate the relationship between migration and productivity in Great Britain between 2002 and 2018, using an instrumental variable approach which follows the commonly used shift-share methodology. Our results, which are robust to a variety of tests, suggest that immigration has a positive and significant impact (in both the statistical sense and more broadly) on productivity, as measured by GVA per job at the Travel-to-Work-Area level. We indeed find that a 1 p.p. increase in the share of migrants is associated with a 0.84 % increase in productivity in 2SLS estimates. We discuss the implications for post-Brexit immigration policy.
Importance of wildflowers in Orius insidiosus (Heteroptera: Anthocoridae) diet
Authors: Strzyzewski Iris , Martini Xavier 
Published: April 2024

Abstract
The addition of non-crop floral resources is known to improve the fitness of many beneficial arthropods. Orius insidiosus (Say; Heteroptera: Anthocoridae) is a predator of several economically important pests and is known to feed on pollen. Spanish needles, Bidens alba L., and Leavenworth’s tickseed, Coreopsis leavenworthii Torrey & Gray (both Asteraceae), are two Florida native wildflowers that may serve as sources of pollen beneficial to O. insidiosus. The current study investigated the effects of adding flowers from C. leavenworthii and B. alba to the diet of captive O. insidiosus on longevity, nymphal development time, and cannibalism. A mixed diet of flowers and thrips prey increased O. insidiosus adult female longevity. Nymphal development time was reduced when B. alba was added to thrips when compared to a diet of thrips alone. Interestingly, cannibalism was low in all instances, suggesting a negligible effect of cannibalism on O. insidiosus except perhaps in extreme situations. These results indicate that B. alba and C. leavenworthii flowers can increase longevity and fitness of O. insidiosus, thus providing support for the use of these plants to enhance natural enemy services.
Technical feasibility and economic benefit of combined shallot seedlings techniques in Indonesia
Authors: Rosliani Rini , Azmi Chotimatul , Sembiring Asma , Murtiningsih Rini , Dianawati Meksy , Rahayu Suwarni Tri , Sulastrini Ineu , Gunaeni Neni , Moekasan Tonny K. , Musaddad Darkam , Kirana Rinda , Hartanto Shinta , Santosa Ade Dahlan , Harmanto Harmanto 
Published: April 2024

Abstract
One of the important factors in the success of True Seed of Shallot (TSS)-based shallot production is the right seeding technology. The study aimed to obtain appropriate nursery techniques for producing high-quality seedlings to increase shallot productivity. The experiment was conducted in Cirebon Regency, West Java, Indonesia, from May to October 2021, using a factorial randomized block design with three treatment factors and three replications. They consisted of shallot varieties (V) (Trisula, Bima, Lokananta, and Maserati); seedlings age (U) (45 and 60 days); and seedling population density (P) (5, 7.5, and 10 g m−2 of TSS). The results revealed that seedling performance was negatively correlated to the bulb yield and revenue cost ratio (R/C). The use of young seedlings enhanced bulb production and R/C ratio in all varieties but had varied effects on cluster alterations in Maserati, Bima, and Trisula varieties. Young Lokananta seedlings prepared in the nursery at a seed density of 7.5 g m−2 proved to be the best treatment to generate the highest bulb production (39.92 t ha−1) and the highest R/C (3.62). Farmers are expected to implement seedling preparation techniques using young seedlings and managing seed populations in diverse varieties to maximize bulb production and R/C.
The syntax of non-canonical coordination in Jordanian Arabic: An experimental investigation
Authors: Al Khalaf Eman , Mashaqba Bassil , Aldiqs Rawan 
Published: April 2024

Abstract
Non-canonical coordination occurs when non-constituents are conjoined. Two major types of non-canonical coordination are gapping and non-constituent coordination (NCC). Non-canonical coordination has received interest for its relevance to core issues in syntax, such as constituency and phrase structure. The aim of this article is twofold. First, it provides empirical evidence for non-canonical coordination from Jordanian Arabic (JA) via an experimental investigation. Two acceptability judgment tasks (rating on a Likert scale) were designed to investigate the status of gapping and NCC in JA. A generalized linear model (GLM) was fit to the data, using the (glm) function from the mlogit package in R. There was a main effect of gapping (χ
2 = 13.203, p < 0.001) and NCC (χ
2 = 15.371, p < 0.001) on the acceptability of the constructions in the positive direction. Second, the article provides an analysis of the facts that is couched in terms of left-to-right syntax via a hybrid analysis that assumes that non-canonical coordination can have two sources: a complementizer phrase source and a vP source.
The effect of gamma rays and stearic acid on calcium carbonate and its impact on the properties of epoxy-based composites
Authors: Yassene Ali A. M. , Awad Eman H. , Hegazy Ahmed A. 
Published: April 2024

Abstract
The purpose of this research is to produce composites of epoxy resin and calcium carbonate (EP/CaCO3) and investigate how treating the CaCO3 filler with stearic acid and gamma radiation affects the properties of the epoxy composites, enhancing their suitability for a range of applications. The CaCO3 powder was subjected to stearic acid treatment and later exposed to γ-radiation at various doses namely (10, 20 and 30 kGy), Different weight percentages of untreated and treated CaCO3 powder were added to epoxy resin (EP) to create EP/CaCO3 composites loaded with varying amounts of CaCO3 filler (5 %, 10 %, 20 %, 30 %, and 40 %). The influence of both stearic acid treatment and different doses of gamma radiation on CaCO3 was investigated. The composites were subjected to characterization of various properties including mechanical (splitting tensile strength, impact strength), thermal (TGA and dimensional thermal analysis) as well as morphological SEM examination. The analysis’ findings demonstrated that the stearic acid monolayer functions as a coupling agent in the EP matrix and can coat CaCO3 particles efficiently. The modification of CaCO3 by stearic acid and exposure to 30 kGy of gamma radiation shows a notable improvement in thermal stability and mechanical qualities for the epoxy composites loaded with various CaCO3 concentrations.
Grammar and grammaticalization in Zapotec
Authors: Operstein Natalie 
Published: April 2024

Abstract
The present study contributes to the empirical basis of grammaticalization theory by presenting a grammaticalization profile of Zapotec, a language family of Mesoamerica. The discussion centers around co-grammaticalization of lexemes and constructions, polygrammaticalization, interdependence between syntactic and prosodic conditioning of grammaticalization, and mutual feedback between grammaticalization and morphosyntactic typology.
Air tab location effect on supersonic jet mixing
Authors: Govindan Mahendra Perumal , Suseela Moorthi Aravindh Kumar , Elangovan Srinivasan , Sundararaj Munisamy , Rathakrishnan Ethirajan 
Published: April 2024

Abstract
Mixing of Mach 2.1 circular, jet issuing from a straight convergent-divergent circular nozzle, in the presence of sonic air tabs at exit and shifted locations along the jet axis was investigated experimentally at nozzle pressure ratios (NPR) 3–6, insteps of 1. Two constant area tubes of 1 mm diameter positioned diametrically opposite, at 0 D, 0.25 D, 0.5 D and 0.75 D (where D is the nozzle exit diameter), were used for fluidic injection. The injection pressure ratio (IPR) of air tabs was maintained at 6. The Mach 2.1 jet operated at nozzle pressure ratio (NPR) in the range of overexpanded states corresponding to NPR 3–6 was controlled with the sonic air tabs operating at the underexpanded state corresponding to IPR 6. The impact of air tabs on jet mixing was studied from the measured Pitot pressure along the jet centerline. The centerline pressure decay of the jet confirms that the air tab promotes jet mixing with the entrained air mass, and the mixing promotion caused by the air tab is dependent on tab location as well as the NPR. In the presence of air tabs, the jet possesses shorter core and experiences faster decay than the uncontrolled jet. Also, the air tabs were effective in reducing the number of shock cells and rendering the waves weaker in the jet core. Among the tab locations, the mixing promoting effectiveness of air tabs at 0 D is better than the tabs at shifted locations. The jet core length reduction caused by the air tab at 0 D increases from 25.4 % to 77.2 %, with increasing NPR from 3 to 6. The same trend was noticed for tab location 0.75 D, but not for 0.25 D and 0.5 D locations. The core length reduction for 0.75 D tab location is about 61.4 %, at NPR 6, and 62.1 % and 55.8 %, for NPR 5 and 4 for tab locations 0.25 D and 0.5 D, respectively. Shadowgraph images of the waves present in the jet core confirms the findings of centerline pressure decay results.
A Conceptual Framework of Different Eccentric Training Methods
Authors: Handford Matthew J. , Bright Thomas E. , Mundy Peter , Lake Jason , Theis Nicola , Hughes Jonathan D. 
Published: April 2024

ABSTRACT
Various methods of eccentric training that aim to increase muscle mass or reduce ground contact time during a landing task have been extensively researched and practically examined. However, multiple methods to implement eccentric training currently exist; they differ in execution and intended training adaptions. There is a clear differentiation between an eccentric muscle action and an eccentric motion whereby a motion alludes to a downward movement of an exercise. The proposed eccentric motions are dissipating eccentrics, deceleration eccentrics, overcoming eccentrics, maximal eccentrics, and rebound eccentrics. These motions formulate into training methods and cues to allow practitioners to clearly differentiate the various eccentric training methods used in research and practice. This review proposes a new conceptual framework that clearly outlines the different forms of eccentric motions that fall into a desired eccentric training method.
Applying energy justice metrics to photovoltaic materials research
Authors: Dutta Nikita S. , Mirletz Heather , Arkhurst Bettina K. , Houghteling Clara , Gill Elizabeth , Ovaitt Silvana 
Published: April 2024

AbstractAchieving the energy transition sustainably requires addressing how new technologies may impact justice in the energy system. The Justice Underpinning Science and Technology Research (JUST-R) metrics framework was recently proposed to aid researchers in considering justice in early-stage research on energy technologies; however, case study evaluations of the framework revealed a desire from researchers to see metrics specialized to particular fields of study. Here, we refine metrics from the JUST-R framework to enhance its applicability to photovoltaic (PV) materials research. Metrics are reorganized to align with aspects of the research process (e.g., research team or source materials). For most metrics, baseline values are suggested to enable researchers to compare their project to competing technologies or standards at their institutions. These refinements are integrated into a tool to facilitate easier understanding and evaluation of justice considerations in early-stage PV research, which can serve as a template for evaluating other energy technologies.
Graphical abstract
The Pasties of Cornwall and the ‘Cornish Pasty’, Part II
Authors: Brears Peter 
Published: April 2024

A previous article in PPC briefly described how the new metropolitan ‘Cornish Pasty’ (soft crust) was taken up as the ‘national’ dish of Cornwall, to the detriment of the county’s true culinary heritage and how it was taught throughout the United Kingdom. This article looks at the controversy introduced in 2011 to afford the Cornish Pasty "Protected Geographical Indication" whereby the word Cornish cannot be used by non-resident pasty producers.
CURRÍCULO DE CIÊNCIAS NO ENSINO FUNDAMENTAL
Authors: Medeiros Vitor Iotte , Lopes José Guilherme 
Published: April 2024

A educação brasileira está passando por um momento de reformulação curricular tendo como referência a BNCC. Este trabalho busca compreender como um processo formativo potencializa a discussão sobre a BNCC de Ciências do Ensino Fundamental, anos finais. A formação possibilitou a reflexão da prática docente em Ciências e contou com a participação de 10 professores. Os dados foram coletados por vídeo-gravação e analisadas pela narrativa reflexiva. Os resultados apontam que o processo formativo promoveu espaços para a reflexão e discussão a respeito da BNCC. Percebemos, ainda, que os professores tomam decisões curriculares embasados em sua formação acadêmico-profissional e visualizam a interdisciplinaridade como potencialmente eficiente ao Ensino de Ciências. Consideramos, portanto, que a formação continuada dos professores, com base na pesquisa colaborativa, auxilia os docentes no processo de reflexão sobre a prática, conduzindo-os a mudanças fundamentadas teoricamente a fim de contribuir para seu desenvolvimento profissional.
Digital literacy of older women with smartphones: a dialogic approach to overcoming barriers
Authors: Tellado Itxaso , Girbés-Peco Sandra , Joanpere-Foraster Mar , Burgués-Freitas Ana 
Published: April 2024

The scientific literature provides evidence that the use of mobile devices with internet access by older adults contributes to their autonomy, capacity for independence, and staying connected, impacting a better quality of life and health. There is also evidence that digital exclusion in smartphone use mainly affects older people, especially women with low academic skills. However, there is very little research on successful dialogical experiences in digital literacy for older women with smartphones. This case study will help fill that gap by collecting the perceptions of female participants (aged 74-90) and female educators of a digital literacy course with smartphones that ran for two academic years. The impact on autonomy and social relationships in the framework of dialogic learning is analyzed, in addition to identifying characteristics that could be transferable to other contexts. The main results show that the dialogic approach of the course has contributed to creating a learning environment based on interactions of mutual support, overcoming the initial fear of using smartphones, developing essential skills for their daily use, and allowing participants to be more connected with family and friends.
Antitumor effects of vitamin B12 in vitro, in vivo, in silico
Authors: Gromova O. A. , Frolova D. E. , Torshin I. Yu. , Filimonova M. V. , Sorokina M. A. , Reyer I. A. , Limanova O. A. , Fedotova L. E. , Maiorova L. A. 
Published: April 2024

Objective: to investigate the antitumor effects of various forms of vitamin B12 in combination with various synergistic vitamins and evaluate the prospects for clinical applications.Material and methods. Cell lines BT-474 (breast ductal carcinoma) and A549 (lung carcinoma) were used as an in vitro cell model, and transplantable epidermoid Lewis lung carcinoma (LLC) was used as an in vivo animal tumor model. Animal studies of LLC were carried out on 25 male F1 hybrid mice (age 2.5–3 months, body weight 23–26 g). In silico research was conducted as a systematic computer analysis of 9,326 scientific sources.Results. In vitro studies on cultures of two human tumor cell lines (BT-474 and A549) confirmed the cytotoxic effect of vitamin B12 (aquacobalamin). It has been shown that vitamin B12 has weak cytotoxic properties in the concentration range of 3.125–200 μg/L (IC50>200 nM), and its hydrophobic derivative (heptamethyl cyanoquacobyric acid ester) significantly reduces the survival of tumor lines. BT-474 and A549 cells at high concentrations (100–200 µg/l, IC50~100 nM). Experimental animals with an in vivo LLС model easily tolerated a drug based on vitamin B12. Exposure to the drug up to the 21st day of LLС development was accompanied by an increasing tendency to inhibit tumor growth by 10–20% (р=0.059). The results of a systematic in silico review of the literature show that clinical data confirmed the significant antitumor effect of vitamin B12.Conclusion. The cellular model indicated the antitumor properties of vitamin B12 and its hydrophobic derivative. With subchronic intragastric administration of B12 to tumor-bearing animals, a steady tendency to inhibit the LLС growth was observed. Analysis of clinical data confirmed the feasibility of the antitumor use of vitamin B12 individually and in combination with synergistic vitamins.
Obesity as a Risk Factor for the Ineffectiveness of Antiangiogenic Treatment of Neovascular Age-related Macular Degeneration
Authors: Likhvantseva V. G. , Gevorgyan A. S. , Kapkova S. G. , Rychkova S. I. , Borisenko T. E. 
Published: April 2024

Purpose: evaluation of obesity as a risk factor for poor outcome (ineffectiveness) of antiangiogenic treatment of patients with neovascular AMD.Patients and methods. Body mass index (BMI) was studied in 84 patients (92 eyes) with neovascular AMD who were treated with intravitreal injections of Eilea in a fixed mode.Results. It was found that a poor treatment outcome in the subgroup with disease progression was associated with obesity of 1–2 degrees; the average BMI in this subgroup (with a deterioration in the morphostructural parameters of the retina) significantly exceeds the indicators of ideal respondents, for comparison: 31.5 ± 0.8 versus 28.6 ± 1.1 (p = 0.04); and the incidence of obese individuals is dominant: 72 %. At the same time, a moderate inverse reliable relationship of BMI with another risk factor — systolic blood pressure (SBP) was found. In this regard, we suggested that obesity indirectly affects the outcome of treatment, since it is “tied” to systolic blood pressure (p = 0.01). An argument in favor of this assumption is a higher correlation coefficient of SAD with the outcome of treatment. The authors hypothesized that obesity contributes to the development of hypertension by increasing the risk of poor outcome of nAMD treatment. The hypothesis explained the association of obesity with the progression of morphostructural changes in the retina in the group of non-responsents with nAMD.Conclusion. Studies have demonstrated a causal relationship between obesity and the outcome of antiangiogenic treatment of patients with nAMD. The data obtained allow us to attribute OBESITY to moderate risk factors for a poor outcome of antiangiogenic treatment of patients with nAMD. Taking into account the fact that OBESITY is a modifiable factor that can be eliminated with certain efforts, opportunities are revealed to reduce the risk of an unfavorable outcome of treatment of patients with nAMD.
Clinical and Immunological Analysis of Retinal Pigment Epithelium Transplantation Derived from Induced Pluripotent Stem Cells under Pharmacological Immunosuppression in Rabbits
Authors: Neroeva N. V. , Balatskaya N. V. , Brilliantova A. G. , Katargina L. A. , Kharitonov A. E. , Lagarkova M. A. , Bogomazova A. N. 
Published: April 2024

justification. Degenerative retinal diseases associated with retinal pigment epithelium damage are untreated and lead to irreversible vision loss. The most promising approach nowadays is considered to be the transplantation of retinal pigment epithelium differentiated from pluripotent stem cells (PSC-RPE). When testing biomedical cellular products, special requirements are placed on the animal model, which should simulate pathological changes, such as in humans, and have sufficient immunological tolerance to xenogenic human cells, enabling them to function fully. For this purpose, lines of immuno-modified or immunodeficiency animals are used, usually small rodents (rats and mice), but the small size and structure of their eyes do not allow manipulation in vitreoretinal interventions in humans. An alternative method of preventing xenotransplantation rejection in large models is pharmacological immunosuppression, under which transplanted PSC-RPE may have biological effects. However, targeted studies of the effectiveness of PSC-RPE transplantation with use of immunosuppressive therapy have not been conducted in our country, and the data of a few foreign works devoted to this problem are contraversial.Purpose. Study of immunological reactivity in transplantation of IPSC-RPE under combined immunosuppressive therapy in rabbit experiment.Materials and methods. The study was performed on 27 male rabbits of New Zealand albino breed, of which 24 animals underwent subretinal transplantation of induced pluripotent stem cells of retinal pigment epithelium: in the I group (12 eyes) intervention was performed in the healthy eye; in group II (12 eyes) — in the area of pre-modeled atrophy of retinal pigment epithelium. Recipients were given combined immunosuppressive therapy. Control Group — 3 intact rabbits (6 eyes). The observation period was 14, 28 and 60 days. Post-transplant evaluation was carried out using standard and specialized ophthalmological examination methods. The determination of cytokines of the immune response IL-2, IL-6, immunosuppressive factors TGF-β1, TGF-β2, TSP-1 in the serum of the blood and the vitreous body was performed by solid-phase immunosurgical enzyme analysis.Results. Comprehensive analysis of biomicroscopy, ophthalmoscopy, optical coherent tomography, immunological studies revealed no signs of active inflammation; no local and systemic increase in the concentration of acute phase IL-6, a drop in serum IL-2 levels indicated direct effects of immunosuppressive drug combinations used in this study.Conclusion. The use of combined immunosuppressive therapy prevented rejection of xenogenic material in rabbits and obtained evidence of safety of subretinal transplantation of IPSC-RPE suspension both in the healthy eye, and pre-induced atrophy of pigmentary epithelium.
Are You Knowledgeable About Breast Pump Safety and Assessment? Knowledge and Skills for Clinical Practice
Authors: Williams Alisa 
Published: April 2024

Objective:There is a lack of evidence or practice guidelines surrounding safe and effective breast pump use. Many lactation personnel feel ill-prepared when troubleshooting pumps. There is an emerging need for skills and understanding on breast pumps and their association with lactation problems.Methods:A review of literature, current professional practice, and clinical experience was used to gain perspective on the current state of breast pump safety and use.Results:More mothers are using breast pumps to initiate, stimulate, or maintain their milk supply. Gaps were identified surrounding breast pump safety and effectiveness. The breast pump market is lucrative and is being flooded with new and “better” pumps at a rapid rate. Pump testing for safety and effectiveness is suboptimal. An increase in breast injuries, illness, and milk supply issues is emerging in clinical practice. There are currently no consistent standards for optimal pressures, cycling, or flange fit.Conclusions:Pumps are a viable option for mothers and can play a role in lactation continuation. Lactation personnel must have competent knowledge and skills to help mothers use pumps safely and effectively.