bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intangible and Indirect Costs of Adaptation to Climate Variability Among Maize Farmers: Chirumanzu District, Zimbabwe
Authors: Kori Dumisani Shoko , Francis Joseph , Zuwarimwe Jethro 
Published: January 2021

AbstractMaize farming in resettlement areas of Chirumanzu District of Zimbabwe is vulnerable to climatic variations. The Government of Zimbabwe encourages maize farmers in resettlement areas to adapt to climate variability through conservation farming and diversification among other measures. It is envisaged that the measures will improve maize farmers’ resilience and ability to safeguard food and nutrition security in the country. However, the process of adaptation is dynamic, complex, and multifaceted in nature. Several problems and dangers accompany the process of adaptation. The problems and dangers are associated with intangible and indirect costs. The focus of this chapter is to explore intangible and indirect costs associated with measures adopted by maize farmers in resettlement areas of Chirumanzu in Zimbabwe. Fifty-four maize farmers from four resettlement wards provided the data through semi-structured interviews. Diversification, changing planting dates, use of drought tolerant varieties were some of the measures adopted. Several problems and dangers accompanied the adaptation measures adopted. Intangible costs such as pain and suffering, embarrassment, ridicule, and stereotyping were experienced. Indirect costs including additional and unplanned costs were also encountered. This chapter concludes that intangible and indirect costs associated with adaptation may result in reduced adaptive capacity and resilience of maize farmers. Therefore, national governments should exercise extreme caution and desist from only encouraging farmers to adapt. Rather, they should consider intangible and indirect costs involved while providing solutions to reduce them to avoid situations where farmers are worse off while facilitating sustainable adaptation.
Spectral decoupling in many-body quantum chaos
Authors: Cotler Jordan , Hunter-Jones Nicholas 
Published: January 2021

AbstractWe argue that in a large class of disordered quantum many-body systems, the late time dynamics of time-dependent correlation functions is captured by random matrix theory, specifically the energy eigenvalue statistics of the corresponding ensemble of disordered Hamiltonians. We find that late time correlation functions approximately factorize into a time-dependent piece, which only depends on spectral statistics of the Hamiltonian ensemble, and a time-independent piece, which only depends on the data of the constituent operators of the correlation function. We call this phenomenon “spectral decoupling”, which signifies a dynamical onset of random matrix theory in correlation functions. A key diagnostic of spectral decoupling isk-invariance, which we refine and study in detail. Particular emphasis is placed on the role of symmetries, and connections betweenk-invariance, scrambling, and OTOCs. Disordered Pauli spin systems, as well as the SYK model and its variants, provide a rich source of disordered quantum many-body systems with varied symmetries, and we studyk-invariance in these models with a combination of analytics and numerics.
Real-time virtual sonography-assisted radiofrequency ablation in liver tumors with conspicuous or inconspicuous images or peritumoral landmarks under ultrasonography
Authors: Huang Hsin-Chih , Gatchalian L. B. , Hsieh Yi-Chung , Chen Wei-Ting , Lin Chen-Chun , Lin Shi-Ming 
Published: January 2021

Abstract
Objectives
The objectives of this study were to determine the primary technique effectiveness (PTE), to compare the complete response and local recurrence rates between conspicuous and inconspicuous tumors using single and switching electrodes of real-time virtual sonography (RVS)-assisted radiofrequency ablation (RFA) in conspicuous and inconspicuous hepatic tumors under conventional ultrasonography (US).

Subjects and method
We compared the complete ablation of inconspicuous tumors with and without anatomical landmark (N = 54) with conspicuous liver tumors (N = 272). Conventional US imaging was done initially, and then these images were fused with CT or MRI arterial-venous-wash-out cross-sectional studies and synchronized with real-time US images.

Results
RVS-assisted RFA was technically feasible in all patients. The PTE rate after the first ablation was 94% (245/261) for conspicuous tumors, 88% (7/8) in inconspicuous tumors with landmark, and 78% (36/46) in inconspicuous tumors without landmark. The complete response (p = 0.1912 vs. p = 0.4776) and local recurrence rate (p = 0.1557 vs. p = 0.7982) were comparable in conspicuous tumors of both HCC and liver metastasis group when single or multiple switching was used. The cumulative local recurrence in the conspicuous and inconspicuous tumors of the HCC group (p = 0.9999) was almost parallel after 12 (10% vs. 4%) and 24 (13% vs. 4%) months of follow-up. In the liver metastasis group, the cumulative local recurrence for conspicuous tumors (p = 0.9564) was nearly equal after 12 and 24 months of monitoring (24% vs. 27%) while no recurrence was incurred for the inconspicuous tumors.

Conclusion
RVS-assisted RFA is an effective tool for the treatment of conspicuous and inconspicuous HCC and hepatic metastasis.
Effective conspecific communication with aberrant calls in the common cuckoo (Cuculus canorus)
Authors: Moskát Csaba , Taylor David M. , Hauber Márk E. 
Published: January 2021

AbstractThe obligate brood parasitic common cuckoo (Cuculus canorus) is best known for its two-note “cu-coo” call, which is uttered repeatedly by adult males during the breeding season. This call advertises the male’s claim for his territory. A rare, aberrant version (“cu-kee”) was discovered in a population of cuckoos in central Hungary. In a playback experiment, we simulated conspecific territorial intrusions using either aberrant call sequences or normal calls (as control). Cuckoos responded to both calls similarly by approaching the speaker, flying around it several times, and perching on nearby trees. To identify the role of each note of these cuckoo calls, we also played sequences of the first (“cu”) or second (“coo” or “kee”) notes of the calls. Territorial males responded to first notes at similarly high frequencies as to each of the full calls, whereas responses toward either second note type were nearly absent. Thus, the first notes of both typical and aberrant cuckoo calls contain sufficient information to recognize conspecific males and the novel calls did not reduce the efficiency of male-male communication in cuckoos because the aberration occurred in the less functional second note.Significance statementBirds use songs and calls to communicate with each other, including advertising their territories to keep competitors away. However, when the acoustic signal is atypical and distorted, the receiver individual may not process it correctly. Common cuckoos recognize a territorial intruder by their well-known “cu-coo” calls. We studied a rare, aberrant version of the common cuckoo call (“cu-kee”), which differed from the normal call in the second note of the two-partite call. However, cuckoos responded similarly to both of the normal and aberrant calls in a playback experiment. When the first or second parts of the different calls were played separately, only the first part of the cuckoo calls was effective in eliciting territorial defence. Consequently, the aberrant second note did not reduce cuckoos’ communication efficiency.
The Local Mission: Improving Access to Surgical Care in Middle‐Income Countries
Authors: Nagengast Eric S. , Munabi Naikhoba C. O. , Xepoleas Meredith , Auslander Allyn , Magee William P. , Chong David 
Published: January 2021

AbstractBackgroundBillions of people lack access to quality surgical care. Short‐term missions are used to supplement the delivery of surgical care in regions with poor access to care. Traditionally known for using international teams, Operation Smile has transitioned to using a local mission model, where surgical service is delivered to areas of need by teams originating within that country. This study investigates the proportion and location of Operation Smile missions that use the local mission model.MethodsA retrospective review was performed of the Operation Smile mission database for fiscal years 2014 to 2019. Missions were classified into local or international missions. Countries were also classified by their income levels as well as their specialist surgical workforce (SAO) density. As no individual patient or provider data was recorded, ethics board approval was not warranted.ResultsBetween 2014 and 2019, Operation Smile held an average of 144.8 (range 135–154) surgical missions per year. Local missions accounted for 97 ± 5.6 (67%) of the missions. Of the 34 program countries, 26 (76%) used local missions. Of the countries that had only international missions, six (75%) were low‐income countries and the average SAO density was 1.54 (range 0.19–5.88) providers per 100,000 people. Of the countries with local missions, 24 (92%) were middle‐income, and the average SAO density was 30.9 (range 3.4–142.4).ConclusionInternational investments may assist in the creation of local surgical teams. Once teams are established, local missions are a valuable way to provide specialized surgical care within a country's own borders.
Left and right atrial appendage functional features as predictors for voltage-defined left atrial remodelling in patients with long-standing persistent atrial fibrillation
Authors: Kiedrowicz Radoslaw Marek , Wielusinski Maciej , Wojtarowicz Andrzej , Kazmierczak Jaroslaw 
Published: January 2021

AbstractIt was hypothesised that left atrial (LA) fibrosis identified by the presence of low-voltage areas (LVA) may influence the mechanical and electrical function of the left (LAA) and right (RAA) atrial appendage among the long-standing persistent atrial fibrillation (LSPAF) population. 140 consecutive patients underwent voltage mapping of LA with a multielectrode catheter following pulmonary vein isolation and restoration of sinus rhythm with cardioversion. Echocardiography determined LAA peak outflow and inflow velocities and intracardiac catheter-based mean LAA and RAA AF cycle length (AFCL) were obtained during AF before ablation. The impact of flow velocities and AFCL on the prevalence and location of LVA was further evaluated. LVA were detected in 54% of the patients. 14% of the patients presented severe global LVA burden > 20% of the total LA surface area. 29% of the patients presented a disseminated pattern of remodelling as 3 out of 5 LA segments were affected. LAA AFCL, RAA AFCL, LAA flow velocities did not predict the absolute presence of LVA. However LAA AFCL > 155 ms predicted disseminated LVA pattern and LAA AFCL > 165 ms severe LVA incidence. LAA AFCL > 155 ms was predictive for existence of LVA within antero-septal LA segments whilst LAA emptying velocity ≤ 0.2 m/s within lateral wall. Moreover RAA AFCL > 165 ms was strongly related to the presence of LAA AFCL > 15 ms and > 165 ms. LAA and RAA functional assessment was predictive of the presence of advanced stages of voltage-defined LA fibrosis and its regional distribution among LSPAF population
Big data simulations for capacity improvement in a general ophthalmology clinic
Authors: Kern Christoph , König André , Fu Dun Jack , Schworm Benedikt , Wolf Armin , Priglinger Siegfried , Kortuem Karsten U. 
Published: January 2021

Abstract
Purpose
Long total waiting times (TWT) experienced by patients during a clinic visit have a significant adverse effect on patient’s satisfaction. Our aim was to use big data simulations of a patient scheduling calendar and its effect on TWT in a general ophthalmology clinic. Based on the simulation, we implemented changes to the calendar and verified their effect on TWT in clinical practice.

Design and methods
For this retrospective simulation study, we generated a discrete event simulation (DES) model based on clinical timepoints of 4.401 visits to our clinic. All data points were exported from our clinical warehouse for further processing. If not available from the electronic health record, manual time measurements of the process were used. Various patient scheduling models were simulated and evaluated based on their reduction of TWT. The most promising model was implemented into clinical practice in 2017.

Results
During validation of our simulation model, we achieved a high agreement of mean TWT between the real data (229 ± 100 min) and the corresponding simulated data (225 ± 112 min). This indicates a high quality of the simulation model. Following the simulations, a patient scheduling calendar was introduced, which, compared with the old calendar, provided block intervals and extended time windows for patients. The simulated TWT of this model was 153 min. After implementation in clinical practice, TWT per patient in our general ophthalmology clinic has been reduced from 229 ± 100 to 183 ± 89 min.

Conclusion
By implementing a big data simulation model, we have achieved a cost-neutral reduction of the mean TWT by 21%. Big data simulation enables users to evaluate variations to an existing system before implementation into clinical practice. Various models for improving patient flow or reducing capacity loads can be evaluated cost-effectively.
The influence of tillage and fertilizer on the flux and source of nitrous oxide with reference to atmospheric variation using laser spectroscopy
Authors: Ostrom Peggy H. , DeCamp Samuel , Gandhi Hasand , Haslun Joshua , Ostrom Nathaniel E. 
Published: January 2021

AbstractNitrous oxide (N2O) is the third most important long-lived greenhouse gas and agriculture is the largest source of N2O emissions. Curbing N2O emissions requires understanding influences on the flux and sources of N2O. We measured flux and evaluated microbial sources of N2O using site preference (SP; the intramolecular distribution of 15N in N2O) in flux chambers from a grassland tilling and agricultural fertilization experiments and atmosphere. We identified values greater than that of the average atmosphere to reflect nitrification and/or fungal denitrification and those lower than atmosphere as increased denitrification. Our spectroscopic approach was based on an extensive calibration with 18 standards that yielded SP accuracy and reproducibility of 0.7 ‰ and 1.0 ‰, respectively, without preconcentration. Chamber samples from the tilling experiment taken ~ monthly over a year showed a wide range in N2O flux (0–1.9 g N2O-N ha−1 d−1) and SP (− 1.8 to 25.1 ‰). Flux and SP were not influenced by tilling but responded to sampling date. Large fluxes occurred in October and May in no-till when soils were warm and moist and during a spring thaw, an event likely representing release of N2O accumulated under snow cover. These high fluxes could not be ascribed to a single microbial process as SP differed among chambers. However, the year-long SP and flux data for no-till showed a slight direct relationship suggesting that nitrification increased with flux. The comparative data in till showed an inverse relationship indicating that high flux events are driven by denitrification. Corn (Zea mays) showed high fluxes and SP values indicative of nitrification ~ 4 wk after fertilization with subsequent declines in SP indicating denitrification. Although there was no effect of fertilizer treatment on flux or SP in switchgrass (Panicum virgatum), high fluxes occurred ~ 1 month after fertilization. In both treatments, SP was indicative of denitrification in many instances, but evidence of nitrification/fungal denitrification also prevailed. At 2 m atmospheric N2O SP had a range of 31.1 ‰ and 14.6 ‰ in the grassland tilling and agricultural fertilization experiments, respectively. These data suggest the influence of soil microbial processes on atmospheric N2O and argue against the use of the global average atmospheric SP in isotopic modeling approaches.
Influence of polysiloxane microspheres on hydrophobicity, structure and mechanical properties of paper materials
Authors: Pospiech Piotr , Olejnik Konrad , Mizerska Urszula , Zakrzewska Joanna 
Published: January 2021

Abstract
The aim of the study was to investigate the impact of three types of polysiloxane microspheres on the barrier properties, structure and mechanical properties of paper. An influence of new silicon filler on properties of cellulose paper sheet was analyzed. Polysiloxane microspheres were used as an additive introduced into the network of cellulosic fibers in order to obtain new functional properties of the paper. The following types of microspheres were used in the research: M1 hydrophilic of average diameter 23.5 µm, M2 hydrophobic of average diameter 3.1 µm and M3 hydrophobic of average diameter 23.5 µm. The obtained handsheets were analyzed for changes in apparent density, roughness, tensile strength, bursting strength, and tear resistance. Wettability and resistance to liquid were characterized by contact angle measurement, penetration dynamics analysis and uniformity of liquid penetration measured using an extended liquid penetration analyser. It was found that the presence of M2 (small diameter) microspheres improved significantly the paper’s hydrophobicity without changing the mechanical properties. The addition of M1 and M3 (large diameter) microspheres decreased the mechanical properties of the paper samples and did not improve their hydrophobicity. However, M1 microspheres resulted in increased uniformity of liquid penetration through the paper structure. The presented studies also show that it is possible to obtain paper with high hydrophobic properties only through the filling application when polysiloxane microspheres are used for this purpose. The results also indicate that it is not necessary to hydrophobize the entire material structure in order to achieve its high hydrophobicity.

Graphic abstract
One-step chemical bath co-precipitation method to prepare high hydrogen-producing active ZnxCd1-xS solid solution with adjustable band structure
Authors: Lu Lili , Ma Yongjin , Dong Rui , Tan Pengfei , Chen Yi , Pan Jun 
Published: January 2021

AbstractA series of ZnxCd1−xS solid solutions were synthesized through a simple one-step chemical bath co-precipitation route. The microstructure, morphology, composition and optical properties had been thoroughly investigated. The results showed that the as-obtained ZnxCd1−xS samples exhibited monodisperse spherical feature. These monodisperse ZnxCd1−xS spheres were composed of a large number of 5–10 nm crystal grains. The chemical composition of the ZnxCd1−xS solid solutions can be controlled by adjusting the ratio of Zn source to Cd source and the dosage of ammonia solution. Meanwhile, the energy band structure and photocatalytic properties can be optimized. The photocatalysis experiment results revealed that the as-synthesized Zn0.30Cd0.70S sample exhibited optimum water splitting performance. The satisfactory hydrogen evolution rate (HER) of Zn0.30Cd0.70S reached 27.004 mmol g−1 h−1 even without any cocatalysts, which was more than 48 times that of pure CdS (0.561 mmol g−1 h−1). This enhancing effect can owe to the balance between light absorption capacity and redox potential caused by the incorporation of Zn in the ZnxCd1−xS solid solutions.
Systematic literature review paper: the regional innovation system-university-science park nexus
Authors: Theeranattapong T. , Pickernell D. , Simms C. 
Published: January 2021

AbstractRecent work on Region Innovation Systems (RIS) has emphasised the importance of universities. Until recently, however, related insights into the dynamics of this relationship in respect of the specific role of the science park have been limited. This paper presents a systematic review identifying the key roles of each actor in relation to innovation. We link the dynamic roles performed by the university between science parks and the RIS. Our results enable us to identify how the key activities performed by the university change during its interrelations within the RIS and with the science park. Our analysis of the literature distinguishes between three sets of relationships through which the university plays differing roles: RIS-university, RIS-university-science park, and university-science park. Respectively, the University’s relationships between these different RIS actors focuses on: resource sharing, brokerage, and commercialisation-exploitation. Secondly, we find that within each of these relationship types the university can perform three types of roles: on knowledge co-creation, acting as conduit, and inter-organisational relationship building. Distinguishing between these differing relationships and roles enables us to identify a total of nine dynamic roles performed by the University, which include: provision of information, channels of communication, infrastructure, regional networking, building research collaboration, acting as knowledge intermediaries, economic development, technological change and commercialisation processes, and start up creation and commercialisation. The review identifies several gaps in the literature in need of further research, and suggests that university relationships with RIS, interlinked with those between the university and science park itself, are important factors affecting science park innovation performance.
The group home as moral laboratory: tracing the ethic of autonomy in Dutch intellectual disability care
Authors: van der Weele Simon , Bredewold Femmianne , Leget Carlo , Tonkens Evelien 
Published: January 2021

AbstractThis paper examines the prevalence of the ideal of “independence” in intellectual disability care in the Netherlands. It responds to a number of scholars who have interrogated this ideal through the lens of Michel Foucault’s vocabulary of governmentality. Such analyses hold that the goal of “becoming independent” subjects people with intellectual disabilities to various constraints and limitations that ensure their continued oppression. As a result, these authors contend, the commitment to the ideal of “independence” – the “ethic of autonomy” – actually threatens to become an obstacle to flourishing in the group home. This paper offers an alternative analysis. It does so by drawing on a case study taken from an ethnographic study on group home life in the Netherlands. Briefly put, the disagreement stems from differing conceptualizations of moral life. Put in the vocabulary of moral anthropologist Cheryl Mattingly, the authors propose to approach the group home more from a “first-person” perspective rather than chiefly from a “third-person” perspective. They then draw on Mattingly to cast the group home as a “moral laboratory” in which the ethic of autonomy is not just reproduced but also enacted, and in which the terms of (in)dependence constantly get renegotiated in practice. What emerges is not only a new perspective on the workings of the “ethic of autonomy” in the group home, but also an argument about the possible limitations of the vocabulary of governmentality for analysing care practices.