bluuebunny/crossref_metadata_2025_split huggingface dataset:
On the oscillation of certain second-order linear differential equations
Authors: Zhang Yueyang 
Published: December 2022

AbstractThis paper consists of three parts: First, letting $b_1(z)$, $b_2(z)$, $p_1(z)$ and $p_2(z)$ be nonzero polynomials such that $p_1(z)$ and $p_2(z)$ have the same degree $k\geq 1$ and distinct leading coefficients $1$ and $\alpha$, respectively, we solve entire solutions of the Tumura–Clunie type differential equation $f^{n}+P(z,\,f)=b_1(z)e^{p_1(z)}+b_2(z)e^{p_2(z)}$, where $n\geq 2$ is an integer, $P(z,\,f)$ is a differential polynomial in $f$ of degree $\leq n-1$ with coefficients having polynomial growth. Second, we study the oscillation of the second-order differential equation $f''-[b_1(z)e^{p_1(z)}+b_2(z)e^{p_2(z)}]f=0$ and prove that $\alpha =[2(m+1)-1]/[2(m+1)]$ for some integer $m\geq 0$ if this equation admits a nontrivial solution such that $\lambda (f)<\infty$. This partially answers a question of Ishizaki. Finally, letting $b_2\not =0$ and $b_3$ be constants and $l$ and $s$ be relatively prime integers such that $l> s\geq 1$, we prove that $l=2$ if the equation $f''-(e^{lz}+b_2e^{sz}+b_3)f=0$ admits two linearly independent solutions $f_1$ and $f_2$ such that $\max \{\lambda (f_1),\,\lambda (f_2)\}<\infty$. In particular, we precisely characterize all solutions such that $\lambda (f)<\infty$ when $l=2$ and $l=4$.
Determinants of Capital Structure: An Expanded Assessment
Authors: Fukui Toshinori , Mitton Todd , Schonlau Robert 
Published: December 2022

AbstractUsing a standardized methodology, we empirically evaluate 55 proposed determinants of capital structure in terms of statistical significance, economic significance, and identification. We find that robust and economically important determinants of debt ratios are relatively few in number. Nevertheless, because each determinant relates to one of five market imperfections—taxes, distress costs, information asymmetry, agency costs, or supply frictions—we draw conclusions from the evidence as a whole regarding the explanatory power of different capital structure theories. We find greater support for pecking order theory and supply-related theories, with less support for traditional tradeoff theory and agency theory.
Comparative analysis of the mitochondrial genome of Dermacentor steini from different regions in China
Authors: Yang Huijuan , Chen Ting , Dong Wenge 
Published: December 2022

AbstractTicks are a group of blood-sucking ectoparasites that play an important role in human health and livestock production development as vectors of zoonotic diseases. The phylogenetic tree of single genes cannot accurately reflect the true kinship between species. Based on the complete mitochondrial genome analysis one can help to elucidate the phylogenetic relationships among species. In this study, the complete mitochondrial genome of Dermacentor steini (isolate Longyan) was sequenced and compared with the mitochondrial genes of 3 other Chinese isolates (Nanchang, Jinhua and Yingtan). In Dermacentor steini 4 isolates had identical or similar mitochondrial genome lengths and an overall variation of 0.76% between sequences. All nucleotide compositions showed a distinct AT preference. The most common initiation and stop codons were ATG and TAA, respectively. Fewer base mismatches were found in the tRNA gene of D. steini (isolate Longyan), and the vicinity of the control region and tRNA gene was a hot rearrangement region of the genus Dermacentor. Maximum likelihood trees and Bayesian trees indicate that D. steini is most closely related to Dermacentor auratus. The results enrich the mitochondrial genomic data of species in the genus Dermacentor and provide novel insights for further studies on the phylogeographic classification and molecular evolution of ticks.
Influences of resting-state intrinsic functional brain connectivity on the antidepressant treatment response in late-life depression
Authors: Ahmed Ryan , Boyd Brian D. , Elson Damian , Albert Kimberly , Begnoche Patrick , Kang Hakmook , Landman Bennett A. , Szymkowicz Sarah M. , Andrews Patricia , Vega Jennifer , Taylor Warren D. 
Published: December 2022

AbstractBackgroundLate-life depression (LLD) is characterized by differences in resting state functional connectivity within and between intrinsic functional networks. This study examined whether clinical improvement to antidepressant medications is associated with pre-randomization functional connectivity in intrinsic brain networks.MethodsParticipants were 95 elders aged 60 years or older with major depressive disorder. After clinical assessments and baseline MRI, participants were randomized to escitalopram or placebo with a two-to-one allocation for 8 weeks. Non-remitting participants subsequently entered an 8-week trial of open-label bupropion. The main clinical outcome was depression severity measured by MADRS. Resting state functional connectivity was measured between a priori key seeds in the default mode (DMN), cognitive control, and limbic networks.ResultsIn primary analyses of blinded data, lower post-treatment MADRS score was associated with higher resting connectivity between: (a) posterior cingulate cortex (PCC) and left medial prefrontal cortex; (b) PCC and subgenual anterior cingulate cortex (ACC); (c) right medial PFC and subgenual ACC; (d) right orbitofrontal cortex and left hippocampus. Lower post-treatment MADRS was further associated with lower connectivity between: (e) the right orbitofrontal cortex and left amygdala; and (f) left dorsolateral PFC and left dorsal ACC. Secondary analyses associated mood improvement on escitalopram with anterior DMN hub connectivity. Exploratory analyses of the bupropion open-label trial associated improvement with subgenual ACC, frontal, and amygdala connectivity.ConclusionsResponse to antidepressants in LLD is related to connectivity in the DMN, cognitive control and limbic networks. Future work should focus on clinical markers of network connectivity informing prognosis.RegistrationClinicalTrials.gov NCT02332291
The Historical Lecture: Past, Present and Future
Authors: Green Toby 
Published: December 2022

AbstractThe oral performance of history has been common to many societies from Herodotus and the histories of Beowulf, to the griots of West Africa. The lecture in Western history emerged from these histories of orality, with its name showing the close connection in its origins to reading, and to the lecturer's expertise in that domain. From this starting point, lectures grew to be associated with frameworks of academic authority, as well as markers of community and shared academic, religious and civic identity. From the late eighteenth century onwards, the role of the historical lecture widened to involve public education, and was also later incorporated into political contestations by anticolonial orators such as Maya Angelou, Amílcar Cabral and Fidel Castro. In the twenty-first century, the rise of transnational technology has seen the increasing atomisation of the lecture into a space of performative and disembodied information. As technologies change, in the future the knowledge and thematic being explored in historical lectures may change. What is embraced may prove to be demonstration of mastery of the commercial technology involved in a lecture's delivery, as much as the exposition related to the lecture or reading from which knowledge and academic communities historically have built.
From the past to the future: Protecting Afghanistan’s cultural heritage – progress, fears, and hopes
Authors: Blake Janet , Masoumi Sayed Ali Naqi 
Published: December 2022

AbstractAfghanistan’s cultural heritage has faced extreme challenges over recent decades, experiencing the simultaneous impacts of numerous disasters such as war, the looting of museums, illegal excavations, and deliberate destruction caused by extreme ideological beliefs – the last diminishing not only Afghanistan’s but also the world’s cultural heritage. However, these incidents and experiences have also provided lessons for the protection of cultural heritage. Despite progress since 2004, the return of the Taliban and their treatment of Afghanistan’s cultural heritage during their previous regime have raised growing concerns for the country’s cultural heritage and fears of that sad history repeating itself. In this article, we examine the progress made in protecting the rights related to cultural heritage in Afghanistan since the fall of the Taliban in 2001, especially in relation to its protection and safeguarding age. To this end, it examines the basis of the current cultural heritage legislation, the identification and registration of heritage elements, the legal tools for regulating heritage, and how its protection is monitored and evaluated. Addressing the challenges that this process faced, it questions what responsibilities should be placed on the Taliban following their recent return to power.
Family resilience during the COVID-19 onset: A daily-diary inquiry into parental employment status, parent–adolescent relationships, and well-being
Authors: Wang Ming-Te , Del Toro Juan , Henry Daphne A. , Scanlon Christina L. , Schall Jacqueline D. 
Published: December 2022

AbstractCOVID-19 changed the landscape of employment and financial security in the USA, contributing to multi-systemic disruptions in family life. Using dyadic, daily-diary parent–adolescent data from a nationwide American sample (18,415 daily assessments; 29 days: 4/8/2020–4/21/2020 and 5/18/2020–6/1/2020;N= 635 parent–adolescent dyads), this intensive longitudinal study investigated how COVID-19-related job loss and working-from-home (WFH) arrangements influenced parents’ and children’s daily affect indirectly through family functioning (i.e., parent–adolescent conflict, inter-adult conflict, and parental warmth) and whether these links varied by family socioeconomic status (SES). Parental employment status was linked to these family relational dynamics, which were then connected to parents’ and adolescents’ daily affect. Although SES did not moderate these links, low-income families were more likely to experience job loss, parent–adolescent conflict, and inter-adult conflict and less likely to WFH than higher-income families. As inter-relations within the family are a malleable point for intervention, clinicians working with families recovering from the fiscal impact of the COVID-19 pandemic are encouraged to use approaches that strengthen family relationships, especially between adolescents and their parents. Unemployment subsidies are discussed as a means to support families struggling with job loss, and organizations are urged to consider the benefits of WFH on employee health and work-life balance.
The history of the K-suffix -ū in Shirazi
Authors: Nourzaei Maryam 
Published: December 2022

AbstractThis article investigates the use and frequency of what I refer to as the K-suffixes -ō/-ū/-o in the Shirazi dialects, namely, Old and Modern Shirazi. It shows that the use of K-suffixes as definiteness markers is more highly developed in Modern Shirazi than in Old Shirazi. In Old Shirazi, the K-suffix, with its original evaluative meaning, demonstrated some degree of multi-functionality. This has mostly been lost in Modern Shirazi, and the suffix is now used to express definiteness. The high frequency of use of the K-suffix appears to be independent of genre, speaker, and speech setting. Data from a corpus of written texts in Old Shirazi, mainly comprised of poems, are quantitatively analysed, along with data from a corpus of spoken Shirazi narratives and data from a questionnaire answered by ten speakers. The results show that an evaluative suffix can develop into a definiteness marker by passing through a stage of combination with deictic markers, which paves the way for extending the use of the K-suffix to include non-deictic anaphoric tracking. This article concludes that the development of definiteness marking can proceed down a pathway that is distinct from the one normally assumed for demonstrative-based definiteness marking, even if the endpoint may be similar. The detailed documentation of this process presented here is a further contribution to Iranian studies, and augments the small group of well-documented cases of a non-demonstrative origin of definiteness marking cross-linguistically.
Impact of integrated weed management practices on cotton economics and Palmer amaranth (Amaranthus palmeri) populations
Authors: Farr Rodger , Norsworthy Jason K. , Kouame K. Badou-Jeremie , Barber L. Tom , Butts Thomas R. , Roberts Trent 
Published: December 2022

AbstractThe threat of herbicide-resistant weed species, such as Palmer amaranth, has driven the development of robust weed management programs that rely on more than chemicals for weed control. Previous research has shown that zero-tolerance weed thresholds, cover crops, deep tillage, and diverse herbicide programs are effective strategies for controlling Palmer amaranth. Unfortunately, research investigating the integration of all four of these weed management strategies in a system is lacking. To better leverage these integrated weed management strategies in cotton production systems, a long-term study was initiated in fall 2018 near Marianna, AR, with zero tolerance, deep tillage, a cereal rye cover crop, and either a dicamba or non-dicamba in-crop herbicide program as factors. Results found that total Palmer amaranth emergence was reduced 76% as the result of deep tillage in 2019 and, in the absence of a zero-tolerance strategy, 73% in 2020. In the absence of a zero-tolerance strategy, the combination of a non–cover crop strategy and dicamba herbicide program decreased total Palmer amaranth emergence by 73%, while the combination of a cover crop strategy and dicamba herbicide program decreased total Palmer amaranth emergence by 78% compared to the combination of a cover crop and non-dicamba herbicide program. Under a zero-tolerance strategy in 2019, tillage reduced cotton yield by 12% and partial returns by US$370 ha−1. In 2020, tillage reduced cotton yield by 14% and partial returns of US$371 ha−1 under a non-zero-tolerance strategy, while a 12% yield reduction and a US$260 ha−1 decrease in partial returns were observed under a zero-tolerance strategy. In 2019, the non-dicamba program resulted in greater partial returns than the dicamba in-crop program because of greater yield and lower program costs. However, in 2020, partial returns were greater for the dicamba in-crop herbicide program owing to greater yields achieved by this program.
A Modified Frequency Distribution Function of Wave‐Breaking‐Induced Energy Dissipation
Authors: Kim In‐Chul , Kaihatu James M. 
Published: December 2022

AbstractA nonlinear frequency‐domain model and a probabilistic wave breaking model have been employed together to simulate the propagation of nearshore wave breaking and to provide estimates of related statistical quantities such as skewness and asymmetry. This combination of models requires a pre‐specification of the frequency dependence of dissipation. Prior work has suggested that a frequency‐squared weighting for the dissipation term is most appropriate via physical arguments. However, the original frequency distribution function significantly underpredicts the higher‐order moments, particularly the accuracy of asymmetry predictions is in need of further improvement. An intensity of frequency dependence for the breaking‐induced damping coefficient is introduced here to further adjust the dissipation function in order to increase the accuracy of asymmetry predictions. By correcting the frequency dependence function with a new form of frequency dependence in the breaking coefficient, the model results are in better agreement with the measurements of the spectrum and higher‐order statistics, as well as with the free surface elevation measurements. It is also seen from testing the model with three different cases that the more evident the influence of the breaking mechanism is on the wave transformation process, the more pronounced the contribution of this modification is.
Increasingly Sophisticated Climate Models Need the Out‐Of‐Sample Tests Paleoclimates Provide
Authors: Burls Natalie , Sagoo Navjit 
Published: December 2022

AbstractClimate models are becoming increasingly sophisticated as climate scientists continually work to improve the realism with which the processes influencing Earth's climate are represented. One example is the treatment of cloud microphysics: as complexity is added to cloud microphysical schemes, Earth's energy budget can respond to changes in climate forcings, such as carbon dioxide or aerosols, in new ways. This increase in degrees of freedom has illuminated larger spread in climate sensitivity across the latest generation of climate models participating Coupled Model Intercomparison Project, Phase 6, with more high climate sensitivity models (Zelinka et al., 2020, https://doi.org/10.1029/2019gl085782). Whilst the historical record gives us just over a century of data to apply toward climate sensitivity constraints (e.g., Nijsse et al., 2020, https://doi.org/10.5194/esd-11-737-2020), the ocean is still taking up much of the heat trapped by anthropogenic greenhouse gas emissions and the climate system is far from equilibrium which limits our understanding how climate sensitivity might change in response to long‐term forced climate change. Here we discuss the valuable tests that paleoclimate reconstructions can provide the latest generation of climate models, as demonstrated by the recent study of Zhu et al., 2022, https://doi.org/10.1029/2021ms002776. Their study provides an example of the benefits for climate model development when climate models are confronted with simulating climates very different from today. Ideally the climate model development stage under future iterations of CMIP will involve such tests as an effort to constrain global climate sensitivity and the regional patterns of climate, such as polar amplification and subtropical aridification.
Toward New and Independent Constraints on Global Mean Sea‐Level Highstands During the Last Glaciation (Marine Isotope Stage 3, 5a, and 5c)
Authors: Pico Tamara 
Published: December 2022

AbstractEstimates of ice volume over the last 120 ka, from marine isotope Stage (MIS) 5d (∼110 ka) through MIS 3 (60–26 ka) are uncertain. Weiss et al. (2022, https://doi.org/10.1029/2021PA004361) offer an innovative new constraint on past sea level using the oxygen isotopes (δ18O) of planktic (surface and thermocline dwelling) foraminifers to infer the salinity of the Sulu Sea in the Indo‐Pacific Ocean and assess flow through the Karimata Strait (Indonesia) over the last glaciation. Based on the timing of Karimata Strait flooding, the study concludes that local relative sea level in the Karimata Strait was >−8 6 m during MIS 5c (∼100 ka) and >−12 6 m during MIS 5a (∼80 ka), relative to present. For MIS 3, a maximum possible relative sea level of −16 6 m is determined. Here, these results are placed into the context of current knowledge of last glacial sea‐level change and the implications for climate forcings and feedbacks (e.g., global average surface temperature and greenhouse gases) and ice sheet growth are discussed. By tracing past ocean circulation patterns that are modulated by the depth of shallow straits such as the Karimata Strait, Weiss et al. (2022, https://doi.org/10.1029/2021PA004361) provide independent constraints on local sea level, which are essential for improving global mean sea level reconstructions on late Pleistocene glacial‐interglacial cycles.
In‐Situ Capillary Pressure and Its Interrelationships With Flow Characteristics During Steady‐State Three‐Phase Flow in Water‐Wet Berea Sandstone
Authors: Zankoor Ahmed , Khishvand Mahdi , Piri Mohammad 
Published: December 2022

AbstractWe present a detailed multi‐level investigation of steady‐state three‐phase flow processes in a water‐wet Berea sandstone sample. We use high‐resolution micro‐computed tomography images acquired during micro‐scale core‐flooding experiments which include successive gas injection, waterflooding, and nonspreading oil flooding steps. We develop and employ robust techniques to comprehensively characterize and probe the complex interrelationships between the pore‐scale three‐phase capillary pressures, fluid occupancy, displacement events, and the macroscopic flow behavior. The results demonstrate that the local capillary pressures involving the invading phase rise or drop in compliance with the changes in the macroscopic flow ratios. For instance, the gas‐oil capillary pressures were at their highest levels during the gas injection process (highest gas/oil fractional flow) and dropped during the subsequent processes. More importantly, the oil‐water capillary pressure is found to sharply rise during the gas injection process, implying that the gas‐displacing‐oil‐displacing‐water double displacements are the dominant double displacement mechanism during this experiment. For the waterflooding test, the local gas‐oil capillary pressures consistently decrease due to water‐displacing‐oil‐displacing‐gas double displacement events. Moreover, the results show that the variations in the gas‐liquid capillary pressures are more significant than those in the oil‐water capillary pressures. Also, the variations in all capillary pressures during gas injection are higher than in the subsequent processes. The higher variations in capillary pressure values are attributed to more localized and less uniform pore‐scale events across the medium. Finally, the capillary pressure gradients along the flow direction are incorporated in the three‐phase relative permeability measurements.
Aptamer-functionalized smart photonic hydrogels: application for the detection of thrombin in human serum
Authors: Shen Peiyan , Li Mengru , Li Ran , Han Bo , Ma Haojie , Hou Xueyan , Zhang Yuqi , Wang Ji-Jiang 
Published: December 2022

AbstractSmart photonic hydrogels based on two-dimensional photonic crystals (2DPC) provide a promising sensing platform for constructing novel chemical and biological sensors due to their facile optical signal readout and highly sensitive responsivity toward target analytes. Aptamers, as recognition elements with high selectivity and affinity, are extensively used to construct a variety of sensors. Herein, we developed two partially base complementary aptamer-functionalized 2DPC hydrogels as aptasensors for the detection of thrombin (TB) in human serum. The photonic hydrogel aptasensors swelled upon exposure to TB solution, leading to an increase in the particle spacing of the 2DPCs. The particle spacing changes were acquired by simply measuring the diameters of the Debye ring diffracted by the 2DPCs without the requirement of sophisticated instruments. The aptasensor swelling resulted from the decrease in the hydrogel cross-linking density induced by the specific binding between one of the aptamers and TB and the increase in hydrogel mixing free energy induced by the introduction of TB. The particle spacing increase of the optimized aptasensor was linear over the TB concentration range of 1–500 nM, and the limit of detection was 0.64 nM. The constructed 2DPC hydrogel aptasensor was used to detect TB in human serum and achieved recoveries of 95.74–104.21% and a relative standard deviation of 2.52–6.58%, showing the practicability and accuracy of the sensor. The aptamer-actuated 2DPC hydrogel biosensor provides a new strategy for designing other target molecule-sensitive aptasensors, showing great potential for development into home kits.