bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparison between shadow imaging and in-line holography for measuring droplet size distributions
Authors: Erinin Martin A. , Néel Baptiste , Mazzatenta Megan T. , Duncan James H. , Deike Luc 
Published: May 2023

AbstractA direct comparison of the droplet size and number measurements using in-line holography and shadow imaging is presented in three dynamically evolving laboratory scale experiments. The two experimental techniques and image processing algorithms used to measure droplet number and radii are described in detail. Droplet radii as low as$$r = 14$$r=14 µm are measured using in-line holography and$$r = 50$$r=50 µm using shadow imaging. The droplet radius measurement error is estimated using a calibration target (reticle) and it was found that the holographic technique is able to measure droplet radii more accurately than shadow imaging for droplets with$$r \le 625$$r≤625 µm. Using the measurements of droplet number and size we quantitatively cross-validate and assess the accuracy of the two measurement techniques. The droplet size distributions,N(r), are measured in all three experiments and are found to agree well between the two measurement techniques. In one of the laboratory experiments, simultaneous measurements of droplets ($$r \ge 14$$r≥14 µm, using holography) and dry aerosols ($$0.07 \lessapprox r \lessapprox 2$$0.07⪅r⪅2 µm, using an scanning mobility particle sizer and$$0.15 \lessapprox r \lessapprox 5$$0.15⪅r⪅5 µm using an optical particle sizer) are reported, one of the first such comparison to the best of our knowledge. The total number and volume of droplets is found to agree well between both techniques in the three experiments. We demonstrate that a relatively simple shadow imaging technique can be just as reliable when compared to a more sophisticated holographic measurement technique over their common droplet radius measurement range. The agreement in results is shown to be valid over a large range of droplet concentrations, which include experiments with relatively sparse droplet concentrations as low as 0.02 droplets per image. Advantages and disadvantages for the two techniques are discussed in the context of our results. The main advantages to in-line holography are the greater accuracy in droplet radius measurement, greater spatial resolution, larger depth of field, and the high repetition rate and short pulse duration of the laser light source. In comparison, the main advantages to shadow imaging are the simpler experimental setup, image processing algorithm, and fewer computer resources necessary for image processing. Droplet statistics like number and size are found to be very reliable between the two methods for large range of droplet densities,$${\mathcal {P}}_{r>50}$$Pr>50, ranging from$$10^{-4} \le {\mathcal {P}}_{r>50} \le 10^{-1}$$10-4≤Pr>50≤10-1cm$$^{-3}$$-3, when the two techniques are implemented as shown in this paper.
Short-term outcomes in robotic vs laparoscopic ileal pouch-anal anastomosis surgery: a propensity score match study
Authors: Panteleimonitis Sofoklis , Al-Dhaheri Mahmood , Harper Mick , Amer Ibrahim , Ahmed Ayman Abdelhafiz , Nada Mohamed Abu , Parvaiz Amjad 
Published: May 2023

Abstract
Purpose
Laparoscopic ileal pouch-anal anastomosis (IPAA) surgery offers improved short-term outcomes over open surgery but can be technically challenging. Robotic surgery has been increasingly used for IPAA surgery, but there is limited evidence supporting its use. This study aims to compare the short-term outcomes of laparoscopic and robotic IPAA procedures.

Methods
All consecutive patients receiving laparoscopic and robotic IPAA surgery at 3 centres, from 3 countries, between 2008 and 2019 were identified from prospectively collated databases. Robotic surgery patients were propensity score matched with laparoscopic patients for gender, previous abdominal surgery, ASA grade (I, II vs III, IV) and procedure performed (proctocolectomy vs completion proctectomy). Their short-term outcomes were examined.

Results
A total of 89 patients were identified (73 laparoscopic, 16 robotic). The 16 patients that received robotic surgery were matched with 15 laparoscopic patients. Baseline characteristics were similar between the two groups. There were no statistically significant differences in any of the investigated short-term outcomes. Length of stay trend was higher for laparoscopic surgery (9 vs 7 days, p = 0.072)

Conclusion
Robotic IPAA surgery is safe and feasible and offers similar short-term outcomes to laparoscopic surgery. Length of stay may be lower for robotic IPAA surgery, but further larger scale studies are required in order to demonstrate this.
Population-based references for waist and hip circumferences, waist-to-hip and waist-to-height ratios for children and adolescents, and evaluation of their predictive ability
Authors: Kułaga Zbigniew , Świąder-Leśniak Anna , Kotowska Aneta , Litwin Mieczysław 
Published: May 2023

AbstractChildhood obesity is a public health problem globally as well as in Poland. This paper aimed to provide age- and sex-specific waist circumference, hip circumference, waist-to-height ratio and waist-to-hip ratio normative values for Polish children and adolescents aged 3 − 18 years for more precise monitoring of abdominal fat accumulation. The waist circumference, hip circumference, waist-to-height ratio and waist-to-hip ratio references were constructed with the lambda-mu-sigma (LMS) method using data from two nationally representative health surveys: the OLA study and the OLAF study, the largest available paediatric surveys in Poland which provided measured height, weight, waist, hip and blood pressure for 22,370 children and adolescents aged 3 − 18 years. The predictive ability of newly established references for overweight/obesity as defined by the International Obesity Task Force criteria and elevated blood pressure was tested with receiver operating characteristic. Abdominal obesity cut-offs linked to adult cardiometabolic cut-offs were established. Reference values for waist circumference, hip circumference, waist-to-height ratio and waist-to-hip ratio are presented, as well as waist circumference, waist-to-height ratio and waist-to-hip ratio cut-off values linked to adult’s cut-offs of cardiometabolic risk. The predictive value for overweight and obesity of population-based waist, hip and waist-to-height ratio references was outstanding–area under the receiver operating characteristic curve > 0.95 in both sexes, whereas with regard to the elevated blood pressure predictive ability was low—area under the receiver operating characteristic curve < 0.65. Conclusion: This paper presents the first waist, hip, waist-to-height ratio and waist-to-hip ratio references for Polish children and adolescents aged 3–18 years. The 90th and 95th percentile and cut-offs linked to adult thresholds for cardiometabolic risk are proposed as cut-offs for abdominal obesity.

What is Known:• Waist circumference, waist-to-height ratio and waist-to-hip ratio are used to assess abdominal obesity in children and adults.• In Poland, there is no abdominal obesity and hip circumference references for children and adolescents from 3 to 18 years of age.

What is New:• Population-based references of central obesity indices and hip references for children and youth aged 3–18 years and cardiometabolic risk thresholds for children and adolescents linked to adult’s cut-offs were established.
Recurrence of brain arteriovenous malformations in pediatric patients: a long-term follow-up study
Authors: Oulasvirta Elias , Koroknay-Pál Päivi , Numminen Jussi , Hafez Ahmad , Raj Rahul , Jahromi Behnam Rezai , Niemelä Mika , Laakso Aki 
Published: May 2023

Abstract
Background
Previously thought to be congenital, AVMs have shown evidence of de-novo formation and continued growth, thus shifting thoughts on their pathophysiology. Pediatric AVM patients have been reported to be more prone to develop AVM recurrence after a seemingly complete cure. Therefore, we assessed the risk of AVM treated in childhood to recur in adulthood after a long-term follow-up in our own cohort.

Methods
Control DS-angiography was arranged during 2021–2022 as part of a new protocol for all AVM patients who were under 21 years of age at the time of their treatment and in whom the treatment had occurred at least five years earlier. Angiography was offered only to patients under 50 years of age at the time of the new protocol. The complete eradication of AVM after the primary treatment had been originally confirmed with DSA in every patient.

Results
A total of 42 patients participated in the late DSA control, and 41 of them were included in this analysis after excluding the patient diagnosed with HHT. The median age at the time of admission for AVM treatment was 14.6 (IQR 12–19, range 7–21 years) years. The median age at the time of the late follow-up DSA was 33.8 years (IQR 29.8–38.6, range 19.4–47.9 years). Two recurrent sporadic AVMs and one recurrent AVM in a patient with hereditary hemorrhagic telangiectasia (HHT) were detected. The recurrence rate was 4.9% for sporadic AVMs and 7.1% if HHT-AVM was included. All the recurrent AVMs had originally bled and been treated microsurgically. The patients with sporadic AVM recurrence had been smoking their whole adult lives.

Conclusions
Pediatric and adolescent patients are prone to develop recurrent AVMs, even after complete AVM obliteration verified by angiography. Therefore, imaging follow-up is recommended.
Optimal maintenance for a waste-to-energy plant using DEMATEL: a case study
Authors: Igodo Alassani , Shamsuzzoha Ahm , Ndzibah Emmanuel , Shamsuzzaman Mohammad 
Published: May 2023

Abstract
Waste-to-energy (WtE) plants are complex systems that requiring different types of maintenance to be reliable and available in functionality. The inadequacies of WtE plant lifetime maintenance may increase the production costs and negatively affect the competitiveness and the availability of WtE plants. To keep the efficiency of all the plant systems high and operating as expected during their lifetime, it is important to maintain them. This study focuses on the maintenance of WtE plants by analyzing the operating procedures at a case company. In the study, a multi-criterion decision-making method (MCDM) named Decision-Making Trial and Evaluation Laboratory (DEMATEL) is used to evaluate the weight and rank of twelve identified criteria for spare parts of the case WtE company. The empirical part of this study consists of a qualitative study, where data were collected from an open-ended questionnaire survey and case company data from existing documents. The respondents' rate from the questionnaire survey was 20%. Key findings from the study show that human, economic, equipment and tool related, management, and environmental factors have an important impact on the effectiveness of the maintenance and availability of the WtE plant. The study also shows that quality, lead time, price, and the severity of spare part failure are the key criteria to consider when selecting spare parts for the WtE plant. The study recommends several initiatives to improve the availability of WtE plant and spare parts which will help to reduce the costs of maintenance as well as mitigate the risks related to the maintenance.

Graphical Abstract
Future of hydrogen economy: simulation-based comparison of LOHC systems
Authors: Bárkányi Ágnes , Tarcsay Bálint Levente , Lovas László , Mérő Tamás , Chován Tibor , Egedy Attila 
Published: May 2023

AbstractHydrogen is one of the key components in renewable energy systems. Its storage and transport, however, are challenging. The Liquid Organic Hydrogen Carrier (LOHC) technology is a possible solution for this issue. With suitable organic components, hydrogen can be stored in a chemically bound form which is safer and has a higher energy density than other solutions. Furthermore, the storage and transport of the LOHC component with high hydrogen content can be provided under normal environmental conditions. The LOHC process cycle involves a catalytic hydrogenation and dehydrogenation step where the LOHC component can be recovered and recycled. The paper reviews a few relevant studies regarding the possible LOHC compound pairs, the potential catalyst systems, and the necessary equipment. Then, the paper discusses a simulation study of three LOHC systems, determining suitable operating conditions and estimating costs. The toluene-methylcyclohexane system was found to be the most promising for LOHC application. Two energy integration opportunities were also examined. The first case study was based on separate hydrogenation and dehydrogenation sites, while the second was based on one site utilization. The results show a lower energy demand in the case of a toluene system, with a reduction of 70% in heating and 45% in cooling.

Graphical Abstract
Comparing solution paths of sparse quadratic minimization with a Stieltjes matrix
Authors: He Ziyu , Han Shaoning , Gómez Andrés , Cui Ying , Pang Jong-Shi 
Published: May 2023

AbstractThis paper studies several solution paths of sparse quadratic minimization problems as a function of the weighing parameter of the bi-objective of estimation loss versus solution sparsity. Three such paths are considered: the “$$\ell _0$$ℓ0-path” where the discontinuous$$\ell _0$$ℓ0-function provides the exact sparsity count; the “$$\ell _1$$ℓ1-path” where the$$\ell _1$$ℓ1-function provides a convex surrogate of sparsity count; and the “capped$$\ell _1$$ℓ1-path” where the nonconvex nondifferentiable capped$$\ell _1$$ℓ1-function aims to enhance the$$\ell _1$$ℓ1-approximation. Serving different purposes, each of these three formulations is different from each other, both analytically and computationally. Our results deepen the understanding of (old and new) properties of the associated paths, highlight the pros, cons, and tradeoffs of these sparse optimization models, and provide numerical evidence to support the practical superiority of the capped$$\ell _1$$ℓ1-path. Our study of the capped$$\ell _1$$ℓ1-path is interesting in its own right as the path pertains to computable directionally stationary (= strongly locally minimizing in this context, as opposed to globally optimal) solutions of a parametric nonconvex nondifferentiable optimization problem. Motivated by classical parametric quadratic programming theory and reinforced by modern statistical learning studies, both casting an exponential perspective in fully describing such solution paths, we also aim to address the question of whether some of them can be fully traced in strongly polynomial time in the problem dimensions. A major conclusion of this paper is that a path of directional stationary solutions of the capped$$\ell _1$$ℓ1-regularized problem offers interesting theoretical properties and practical compromise between the$$\ell _0$$ℓ0-path and the$$\ell _1$$ℓ1-path. Indeed, while the$$\ell _0$$ℓ0-path is computationally prohibitive and greatly handicapped by the repeated solution of mixed-integer nonlinear programs, the quality of$$\ell _1$$ℓ1-path, in terms of the two criteria—loss and sparsity—in the estimation objective, is inferior to the capped$$\ell _1$$ℓ1-path; the latter can be obtained efficiently by a combination of a parametric pivoting-like scheme supplemented by an algorithm that takes advantage of the Z-matrix structure of the loss function.
Bringing Fundamental Insights of Induced Resistance to Agricultural Management of Herbivore Pests
Authors: Poelman Erik H. , Bourne Mitchel E. , Croijmans Luuk , Cuny Maximilien A. C. , Delamore Zoë , Joachim Gabriel , Kalisvaart Sarah N. , Kamps Bram B. J. , Longuemare Maxence , Suijkerbuijk Hanneke A. C. , Zhang Nina Xiaoning 
Published: May 2023

AbstractIn response to herbivory, most plant species adjust their chemical and morphological phenotype to acquire induced resistance to the attacking herbivore. Induced resistance may be an optimal defence strategy that allows plants to reduce metabolic costs of resistance in the absence of herbivores, allocate resistance to the most valuable plant tissues and tailor its response to the pattern of attack by multiple herbivore species. Moreover, plasticity in resistance decreases the potential that herbivores adapt to specific plant resistance traits and need to deal with a moving target of variable plant quality. Induced resistance additionally allows plants to provide information to other community members to attract natural enemies of its herbivore attacker or inform related neighbouring plants of pending herbivore attack. Despite the clear evolutionary benefits of induced resistance in plants, crop protection strategies to herbivore pests have not exploited the full potential of induced resistance for agriculture. Here, we present evidence that induced resistance offers strong potential to enhance resistance and resilience of crops to (multi-) herbivore attack. Specifically, induced resistance promotes plant plasticity to cope with multiple herbivore species by plasticity in growth and resistance, maximizes biological control by attracting natural enemies and, enhances associational resistance of the plant stand in favour of yield. Induced resistance may be further harnessed by soil quality, microbial communities and associational resistance offered by crop mixtures. In the transition to more sustainable ecology-based cropping systems that have strongly reduced pesticide and fertilizer input, induced resistance may prove to be an invaluable trait in breeding for crop resilience.
Radon prevalence in domestic water in the Ría de Vigo coastal basin (NW Iberian Peninsula)
Authors: Ibánhez Juan Severino Pino , Álvarez-Salgado Xosé Antón , Rocha Carlos 
Published: May 2023

Abstract
The Ría de Vigo catchment is situated in the largest radon-prone area of the Iberian Peninsula. High local indoor radon (222Rn) levels are the preeminent source of radiation exposure, with negative effects on health. Nevertheless, information on radon levels of natural waters and the potential human exposure risks associated with their domestic use is very sparse. To elucidate the environmental factors increasing human exposure risk to radon during domestic water use, we undertook a survey of local water sources, including springs, rivers, wells, and boreholes, over different temporal scales. Continental waters were highly enriched in 222Rn: activities ranged from 1.2 to 20.2 Bq L−1 in rivers and levels one to two orders of magnitude higher were found in groundwaters (from 8.0 to 2737 Bq L−1; median 121.1 Bq L−1). The geology and hydrogeology of local crystalline aquifers support one order of magnitude higher 222Rn activities in groundwater stored in deeper fractured rock compared to that contained within the highly weathered regolith at the surface. During the mean dry season, 222Rn activities nearly doubled in most sampled waters in comparison to the wet period (from 94.9 during the dry season to 187.3 Bq L−1 during wet period; n = 37). Seasonal water use and recharge cycles and thermal convection are postulated to explain this variation in radon activities. The high 222Rn activities cause the total effective dose of radiation received from domestic use of untreated groundwaters to exceed the recommended 0.1 mSv y−1. Since more than 70% of this dose comes from indoor water degassing and subsequent 222Rn inhalation, preventative health policy in the form of 222Rn remediation and mitigation measures should be implemented prior to pumping untreated groundwater into dwellings, particularly during the dry period.
Do consumers benefit from national-brand listings by hard discounters?
Authors: Geyskens Inge , Deleersnyder Barbara , Dekimpe Marnik G. , Lin Didi 
Published: May 2023

AbstractHard discounters are moving away from an almost exclusive private-label (PL) focus by adding a select set of big-name brands to their otherwise scanty assortments. However, to what extent consumers benefit from this strategy remains unclear. This study quantifies the consumer-welfare impact of adding a select set of leading national brands to hard discounter Lidl’s assortment in the German market. We rely on the economic concept of compensating variation, which reflects the consumer-welfare effect in monetary terms and captures the impact on consumer prices while accounting for consumers’ possible appreciation of more convenient access to big-name brands. Although hard discounters argue that adding big-name brands to their assortment benefits consumers, our results reveal unfavorable price developments, not just at the hard discounter but in the entire market. Importantly, impoverished consumers are hurt more severely, with a monetary loss due to the price increase across the 18 categories in our sample that is about five times larger than for the more affluent.
Collaborative Innovation and Absorptive Capacity as an Antecedent on IT Firm Financial Performance
Authors: Mata Mário Nuno , Martins José Moleiro , Inácio Pedro Leite 
Published: May 2023

AbstractA lack of collaborative innovation and absorptive capacity in firms causes projects to fail. Managers/employees in small and medium enterprises (SMEs) are not sufficiently aware of the practices of intellectual capital and nor do they collect, share, transfer, and utilize knowledge properly. This current study, therefore, focuses on the relationship between collaborative innovation and the financial performance of Portuguese IT sector SMEs, with a mediating role of absorptive capacity and a moderating role of intellectual capital based on three sub-domains (human capital, organizational capital, and social capital). Close-ended questionnaires were used to obtain data from 308 employees and managers. Owing to the COVID-19 pandemic, data were also collected through an online survey method. The simple random sampling technique was used to collect data and analyze it using the PLS-SEM method. The results show that collaborative innovation has a positive and significant impact on the financial performance of IT firms in Portugal. Absorptive capacity is considered a potential mediator between collaborative innovation and financial performance. Moreover, the moderating role of intellectual capital strengthens the relationship between collaborative innovation and absorptive capacity.
CAVV Symposium on Independent Advice on Public International Law
Authors: Handel-Mazzetti Louisa , Ramlakhan Vyashti , Jong Daniëlla Dam-de , Ryngaert Cedric 
Published: May 2023

AbstractThis report provides a summary of a symposium on independent advice on public international law, organized by the Dutch Advisory Committee on Public International Law (CAVV) on the 19th of January 2023 in The Hague. The speakers highlighted the internationally unique character of the CAVV, which is a formal body, established by law, advising the Dutch Government (Cabinet and Parliament) on questions of international law. The CAVV reflects the Dutch traditional culture of broad societal involvement and of compromise. It serves various audiences, such as the Dutch Cabinet and Parliament, the International Law Commission, legal academics, legal practitioners, and the wider public. The CAVV can be said to have an influence on both national and international debates regarding international law. This is illustrated on the basis of a discussion of the CAVV’s advisory reports on the protection of the atmosphere, the use of the term ‘genocide’ by politicians, and the provision and funding of non-lethal assistance to non-state armed groups.