bluuebunny/crossref_metadata_2025_split huggingface dataset:
Double-Setting Seed-Metering Device for Precision Planting of Soybean at High Speeds
Authors: Xue Pan , Xia Xuyu , Gao Pengyang , Ren Di , Hao Yujun , Zheng Zhiqi , Zhang Junchang , Zhu Ruixiang , Hu Bin , Huang Yuxiang 
Published: February 2019

Abstract. Precision planting has been proven to be an effective method for seeding row crops with uniform seed spacing, which favors crop yields. However, most precision planters were developed for low field operating speeds. In this study, a mechanical seed-metering device was developed with double-setting seed pickers, which allows high-quality planting at high field operating speeds. A discrete element model (DEM) was used to examine the effects of the design parameters on the metering performance, as indicated by the quality index (Iq), miss index (Imiss), and multiples index (Imult). Based on the model results, a seed-metering device was fabricated with the optimal design parameters and tested in laboratory conditions for model validation. Results showed that the critical parameters for the seed picker design were the lengths of the first and second setting plates (L1 and L2, respectively) and the seed cell and seed holder angles (a and ß, respectively). The Iq was generally high and the Imiss and Imult were generally low over the ranges of L1 from 15.5 to 17.5 mm, L2 from 4.6 to 5.5 mm, a from 57.5° to 65.0°, and ß from 50.0° to 70.0°. The most influential factors were ß and L2 and their interactions. The best performance, represented by the highest Iq, occurred at L2 = 5.18 mm and ß = 61.9°, where the Iq was 99.59%. The model results agreed well with the test results, as demonstrated by the low relative error (2.5%). Keywords: DEM, Modeling, Precision metering, Quality index, Seed, Travel speed.
Influencia de las migraciones protestantes estadounidenses en el partido político ARENA en El Salvador
Authors: Sánchez Gina Marcela Reyes , Sánchez María Camila Cárdenas 
Published: February 2019

ResumenEste artículo analiza la incidencia de la segunda oleada migratoria de misiones protestantes estadounidenses hacia Centro y Sudamérica a finales de la década de 1980 y su influencia en la organización interna, las estrategias para acceder al poder y el desarrollo del proyecto político del partido Alianza Republicana Nacionalista (ARENA) de El Salvador. En la investigación se usó una metodología cualitativa. El impacto de las misiones protestantes en El Salvador implicó una aceptación de la occidentalización, contrastándola con los presupuestos comunistas apoyados por la teología latinoamericana de la liberación, especialmente en el catolicismo romano. Esa distinción evidenció que en ARENA confluían intereses religiosos, políticos y expansionistas.Palabras clave: Misiones protestantes, protestantismo, fundamentalismo, partido político ARENA, El Salvador, teología latinoamericana de la liberación.
Endoscopic Ultrasound-Guided Coil Injection Therapy for Gastric Variceal Bleeding Not Amenable to Interventional Radiology-Guided Therapies
Authors: Bazarbashi Ahmad Najdat , Ryou Marvin 
Published: February 2019

Abstract
Gastric varices account for 10%–30% of all variceal bleeds and are associated with significant morbidity and mortality. Interventional radiology–guided therapies such as balloon-occluded retrograde transvenous obliteration and coil-assisted retrograde transvenous obliteration can provide hemostasis when traditional endoscopic treatments such as cyanoacrylate injection fail. However, their applicability in certain cases can be limited because of anatomical constraints. We describe the use of endoscopic ultrasound–guided coil and absorbable gelatin sponge injection for the treatment of bleeding gastric varices arising from pancreatitis-induced splenic vein thrombosis not amenable to interventional radiology–guided therapies.
Hepatic Inflammatory Pseudotumor: An Important Differential Diagnosis in Patients With a History of Previous Biliary Procedures
Authors: Zhao Jianping , Olino Kelly , Low Leah E. , Qiu Suimin , Stevenson Heather L. 
Published: February 2019

Abstract
Hepatic inflammatory pseudotumors (IPTs) are rare lesions that mimic malignancy clinically, radiologically, and pathologically. The pathophysiology is unknown, and no criteria exist for diagnosis. This series includes 3 cases: 1 patient had recent biliary drainage with bile duct stent placement, and the other 2 patients had hepatic abscess formation before IPT development, which further supports that hepatic IPTs develop in patients with underlying triggers of liver inflammation and injury, including infections and/or bile leakage into the parenchyma. All 3 patients were successfully treated with antibiotics, sparing them surgical intervention. Follow-up showed complete resolution, and none developed recurrences or malignancies.
Pharmacological effects of Fucus spiralis extracts and phycochemicals: a comprehensive review
Authors: Rosa Gonçalo P. , Barreto Maria Carmo , Seca Ana M.L. 
Published: February 2019

Abstract
The value of macroalgae to the pharmaceutical and food industries has increased, due to their richness in compounds with relevant biological activities and health effects. However, there are still many species that are worth exploring, like the edible Fucus spiralis L., widespread throughout the European and African Atlantic coasts. In order to demonstrate the phycochemical, pharmacological and nutritional potential of F. spiralis, this work presents a comprehensive review of studies regarding the bioactivities of F. spiralis extracts and their phycochemicals. A critical analysis of studies is presented, identifying the challenges and opportunities, and unveiling the knowledge gaps in order to guide future research with this alga. Although the studies performed so far have shown the potential of F. spiralis, this review shows that there is still a big gap in the knowledge about its metabolites. In this context, it is suggested that future investigations should focus more on the isolation and unequivocal structural characterization of the metabolites, such as phlorotannins. In addition, some weaknesses in the reviewed literature are mentioned here, which should be avoided in future work, in order to allow a better evaluation of the validity of results and their comparison.
Two- and Four-Pole Multilayer SIW Filter with High Selectivity and Higher-Order Mode Suppression
Authors: Jia Dinghong , Feng Quanyuan , Xiang Qianyin 
Published: February 2019

Abstract
This letter presents an approach to design two-pole source-load coupling and four-pole cross-coupling substrate integrated waveguide (SIW) bandpass filters based on multilayer process. Utilizing the field distribution, the vertical magnetic and electric coupling of fundamental mode is designed by suppressing the first spurious mode. Then, source-load and cross-coupling schemes are realized with controllable features in two-pole and four-pole filters, respectively. The harmonic passband produced by TE102 mode can be suppressed by proper coupling technique enabling the connection with TE102 mode in two- and four-pole filter designs, respectively. Three transmission zeros, which are derived from source-load coupling, are introduced around the passband of two-pole filter to improve its selectivity. In the four-pole filter design, a six-order cross-coupling scheme including source and load produces four transmission zeros around the passband, leading to a sharp selectivity. In addition, another transmission zero is generated at the adjacent location of the passband to improve the out-of-band rejection. Compared with conventional horizontally coupled filters made of single layer, the proposed filters show a compact size. To demonstrate the proposed design method, a two-pole and a four-pole double-layered SIW bandpass filters are fabricated and measured. Measured results show that the proposed filters exhibit high selectivity and good out-of-band rejection, as well as a good agreement between simulated and measured results.
Molecular versus morphological approaches to diet analysis of the caracal (Caracal caracal)
Authors: Momeni Sogol , Malekian Mansoureh , Hemami Mahmoud-Reza 
Published: February 2019

Abstract
Diet analysis is an essential part in understanding the biology of a species and functioning of ecosystems. Traditional morphological identification of undigested remains in the scats and molecular analyses of prey species’ DNA have previously been used to assess diet. In the present study, caracal diet in the Abbasabad Wildlife Refuge, Central Iran, was investigated using both molecular and morphological methods. We collected 22 scat samples from caracal dens in the region. Feces were washed on sieves and their remaining components were morphologically identified. We also targeted a 307-base pair fragment of the cytochrome b gene to amplify and sequence the species’ DNA. Morphological analyses revealed that 76% of the diet comprised rodent species. We identified a total of nine prey taxa using the molecular method, including six rodents, one hare, one hedgehog and one wild goat. There was a general agreement between the molecular and morphological results; however, molecular methods tended to allow a better identification of the prey species. Therefore, the DNA-based approach acts as a valuable complement to current morphological methods in the study of a rare felid’s diet when no hair reference library exists.
Crystal structure of catena-poly[dichlorido-(μ2-3-(2-pyridyl)-4-(4-pyridyl)-5-(3-pyridyl)-1,2,4-triazole-κ2
N:N′)] copper(II), C17H12N6Cl2Cu
Authors: Zhang Lili , Gu Xuefan , Xue Ming , Qu Chengtun , Ma Yun , Chen Gang 
Published: February 2019

Abstract
C17H12Cl2CuN6, monoclinic, P21/c (no. 14), a = 13.113(3) Å, b = 7.1325(4) Å, c = 19.527(3) Å, β = 103.628(2)°, V = 1774.8(5) Å3, Z = 4, R
gt(F) = 0.0310, wR
ref(F
2) = 0.0682, T = 296(2) K.
Crystal structure of tetramethylammonium (2-(3-ethoxy-2-oxidobenzylidene)-1-(2-hydroxybenzoyl)hydrazin-1-ido-κ3
N,N′,O)cobalt(III), C36H40N5O8Co
Authors: Cuihong Zhang , Yuan Ge , Xiaoping Huo , Liguo Yang , Xin Li , Zongcheng Miao 
Published: February 2019

Abstract
C36H40N5O8Co, monoclinic, P21/c (no. 14), a = 17.353(4) Å, b = 11.474(2) Å, c = 18.074(4) Å, β = 101.056(2)°, V = 3532.0(13) Å3, Z = 4, R
gt(F) = 0.0464, wR
ref(F
2) = 0.1323, T = 296(2) K 1–3.
The crystal structure of (E)-4-(1-(2-aminophenylimino)ethyl)benzene-1,3-diol, C14H14N2O2
Authors: Shi Xiao-Ming , Li Shu-Jing , Xiao Li-Na , Cai Bin , Peng Peng 
Published: February 2019

Abstract
C14H14N2O2, monoclinic, P21/c (no. 14), a = 8.5030(9) Å, b = 7.6199(8) Å, c = 18.738(2) Å, β = 92.852(2)°, V = 1212.6(2) Å3, Z = 4, R
gt(F) = 0.0413, wR
ref(F
2) = 0.1247, T = 296.15 K.
Ultrasonic measurement of clamping force for injection molding machine
Authors: Zhao Peng , Zhao Yao , Zhang Jianfeng , Huang Junye , Xia Neng , Fu Jianzhong 
Published: February 2019

Abstract
An online and feasible clamping force measurement method is important in the injection molding process and equipment. Based on the sono-elasticity theory, an in situ clamping force measurement method using ultrasonic technology is proposed in this paper. A mathematical model is established to describe the relationship between the ultrasonic propagation time, mold thickness, and clamping force. A series of experiments are performed to verify the proposed method. Experimental findings show that the measurement results of the proposed method agree well with those of the magnetic enclosed-type clamping force tester method, with difference squares less than 2 (MPa)2 and errors bars less than 0.7 MPa. The ultrasonic method can be applied in molds of different thickness, injection molding machines of different clamping scales, and large-scale injection cycles. The proposed method offers advantages of being highly accurate, highly stable, simple, feasible, non-destructive, and low-cost, providing significant application prospects in the injection molding industry.
Organophosphines in PtP4 derivatives; structural aspects
Authors: Melník Milan , Mikuš Peter 
Published: February 2019

Abstract
In this review, we classify and analyze the structural data of more than 80 monomeric platinum coordination complexes with an inner coordination sphere of PtP4 in which only organophosphines are involved. On the basis of the coordination mode of respective organophosphines, these complexes can be divided into six subgroups: Pt(PL)4, Pt(PL)2(PL′)2, Pt(η2-P2L)(PL)2, Pt(η2-P2L)2, Pt(η2-P2L)(η2-P2L′)2, and Pt(η4-P4L). The chelating ligands forming wide varieties of metallocycles: (P=P), (PNP), (PCP), (PC2P), (PP2P), (PC2NP), (PNCNP), (PNPNP), (POHOP), (POBOP), (PCNCP), (PC3P), (PC4P), and (PC2OC2P). The effects of both steric and electronic factors reflect on the values of P-Pt-P chelate angles. The total mean values of Pt-P elongate in the order: 2.289 Å (tetradentate)<2.306 Å (monodentate)<2.320 Å (bidentate). The same order shows the respective covalent bond weaknesses.
Phonons in deformable microporous crystalline solids
Authors: Kuchta Bogdan , Formalik Filip , Rogacka Justyna , Neimark Alexander V. , Firlej Lucyna 
Published: February 2019

Abstract
Phonons are quantum elastic excitations of crystalline solids. Classically, they correspond to the collective vibrations of atoms in ordered periodic structures. They determine the thermodynamic properties of solids and their stability in the case of structural transformations. Here we review for the first time the existing examples of the phonon analysis of adsorption-induced transformations occurring in microporous crystalline materials. We discuss the role of phonons in determining the mechanism of the deformations. We point out that phonon-based methodology may be used as a predictive tool in characterization of flexible microporous structures; therefore, relevant numerical tools must be developed.
A Novel Test Specimen Geometry for Uniaxial Fatigue Testing of Asphalt Concrete
Authors: Karr Grant J. , Archilla Adrian R. 
Published: February 2019

Abstract
Two challenges in uniaxial fatigue testing of hot mix asphalt remain: end failures of cylindrical specimens and applicability to in-situ samples. End failures occur frequently, significantly reducing the value of the test. Cored field samples often include several construction lifts, rendering them unsuitable for creating standard test cylinders. This study proposes a specimen geometry for uniaxial fatigue testing addressing these challenges. The proposed geometry is obtained by cutting horizontal slices of laboratory compacted or field-cored cylinders with a 150-mm diameter. The circular slices are reduced to rectangles 110 mm long by 100 mm wide. The thickness can be varied based on lift thickness and nominal maximum aggregate size (19–38 mm have been used successfully). The resulting prism is then tapered along its length over the middle 90 mm to a minimum width of 88 mm at mid-height. The specimen is loaded along its longitudinal axis (normal to the reduced cross section). This article discusses the rationale for the geometry, fabrication, and gluing procedures as well as procedures to reduce loading platen-induced moments before testing and load eccentricity while testing. As a proof of concept, it also presents the results of constant crosshead tests performed at 40°C that to date have resulted in middle failures at a frequency greater than 95 %.
Dissection of Complex, Fitness-Related Traits in MultipleDrosophilaMapping Populations Offers Insight into the Genetic Control of Stress Resistance
Authors: Everman Elizabeth R , McNeil Casey L , Hackett Jennifer L , Bain Clint L , Macdonald Stuart J 
Published: February 2019

AbstractThe ability to survive periods without food is an important component of individual fitness, and genetic dissection can provide insight into the mechanisms and evolution of starvation resistance. Everman et al. use several genome-wide...We leverage two complementary Drosophila melanogaster mapping panels to genetically dissect starvation resistance—an important fitness trait. Using &gt;1600 genotypes from the multiparental Drosophila Synthetic Population Resource (DSPR), we map numerous starvation stress QTL that collectively explain a substantial fraction of trait heritability. Mapped QTL effects allowed us to estimate DSPR founder phenotypes, predictions that were correlated with the actual phenotypes of these lines. We observe a modest phenotypic correlation between starvation resistance and triglyceride level, traits that have been linked in previous studies. However, overlap among QTL identified for each trait is low. Since we also show that DSPR strains with extreme starvation phenotypes differ in desiccation resistance and activity level, our data imply multiple physiological mechanisms contribute to starvation variability. We additionally exploited the Drosophila Genetic Reference Panel (DGRP) to identify sequence variants associated with starvation resistance. Consistent with prior work these sites rarely fall within QTL intervals mapped in the DSPR. We were offered a unique opportunity to directly compare association mapping results across laboratories since two other groups previously measured starvation resistance in the DGRP. We found strong phenotypic correlations among studies, but extremely low overlap in the sets of genomewide significant sites. Despite this, our analyses revealed that the most highly associated variants from each study typically showed the same additive effect sign in independent studies, in contrast to otherwise equivalent sets of random variants. This consistency provides evidence for reproducible trait-associated sites in a widely used mapping panel, and highlights the polygenic nature of starvation resistance.
The Perinatal Beliefs, Practices, and Outcomes Among Badjaos in Dauis, Bohol, Philippines
Authors: Bernaldez Aim Daneca , Lupio Sharon 
Published: February 2019

Culture plays a very significant role in the way a woman perceives and prepares for her birthing experience. This study aimed to determine the specific cultural perinatal practices and pregnancy outcomes among 30 Badjao women in Totolan, Dauis, and Bohol. The respondents were Badjao mothers who had been pregnant and had given birth regardless of age and regardless of pregnancy. A purposive qualitative study was utilized, and data were gathered through group and key informant interviews. The study revealed that practices of the majority in the prenatal period still adhere to traditional beliefs. It also revealed that the majority in the intraportal and postpartum periods also practice traditional beliefs. Many of these beliefs were not beneficial to the health of the mother and the fetus and a growing infant. However, the study also revealed that there were acceptable ways being widely practiced by the Badjao mothers as well. The study further showed that despite the existing traditional practices, records had shown that there were very few instances of negative pregnancy outcomes. Still, the negative pregnancy outcomes are a cause for concern. It is prudent to say that women who are steeped in traditional cultural beliefs need supportive health educational services to increase their level of knowledge and enhance the recommended health practices.
Overall and Site-Specific Cancer Mortality in Patients on Dialysis and after Kidney Transplant
Authors: Au Eric H. , Chapman Jeremy R. , Craig Jonathan C. , Lim Wai H. , Teixeira-Pinto Armando , Ullah Shahid , McDonald Stephen , Wong Germaine 
Published: February 2019

Significance Statement
Patients with ESRD experience a substantially increased incidence of cancer, but few studies have examined patterns of cancer mortality among such patients. This population-based cohort study of Australian patients who initiated dialysis or received a kidney transplant from 1980 to 2014 found that the risk of cancer-related death among 52,936 patients on dialysis and 16,820 kidney transplant recipients was 2.5 times higher than that of age- and sex-matched controls in the general population. For patients on dialysis, increased cancer mortality is primarily from cancers that caused ESRD; among transplant recipients, the increase is largely due to de novo cancers. Additional efforts are required to clarify factors and mechanisms involved in increased cancer risk and to improve early detection and management of cancer in this population.

Background
Patients with ESRD have a substantially increased cancer risk, but few studies have examined the patterns of cancer mortality along a patient's journey from dialysis to transplantation.

Methods
We identified all Australian patients on dialysis and patients with transplants from 1980 to 2014 from the Australia and New Zealand Dialysis and Transplant Registry. Using standardized mortality ratios (SMRs), we compared cancer mortality among patients on dialysis and patients with transplants versus the general population (overall and by age, sex, year, and site); we also performed a subgroup analysis excluding patients with preexisting cancers.

Results
We followed 52,936 patients on dialysis and 16,820 transplant recipients for 170,055 and 128,352 patient-years, respectively. There were 2739 cancer deaths among patients on dialysis and 923 cancer deaths among transplant recipients. Overall, cancer SMRs were 2.6 for patients on dialysis and 2.7 for transplant recipients. For patients on dialysis, SMRs were highest for multiple myeloma (30.5), testicular cancer (17.0), and kidney cancer (12.5); for transplant recipients, SMRs were highest for non-Hodgkin lymphoma (10.7), kidney cancer (7.8), and melanoma (5.8). Some 61.0% of patients on dialysis and 9.6% of transplant recipients who experienced cancer death had preexisting cancer. The SMRs for de novo cancer was 1.2 for patients on dialysis and 2.6 for transplant recipients.

Conclusions
Patients on dialysis and transplant recipients experienced >2.5-fold increased risk of cancer death compared with the general population. This increased risk was largely driven by preexisting cancers in patients on dialysis and de novo cancers in patients with transplants.
Developing the Student Anchor Engagement Framework
Authors: Kebea Jennifer Johnson 
Published: February 2019

Modern urban and metropolitan universities are increasingly obliged to recognize their role as anchor institutions. These same institutions of higher education (IHEs) also have a responsibility to educate students to be responsible and participatory citizens in society. An increasing number of IHEs recognize these distinct commitments as central to the public purpose of higher education. However, few intentionally involve students in anchor mission work. This misalignment denies students a rich opportunity for civic learning and democratic engagement. Furthermore, it prevents IHEs and their surrounding communities from realizing the benefits of harmonizing these two commitments. This mixed-methods research study resulted in the development of the Student Anchor Engagement Framework, a 36-item strategic framework designed to identify how IHEs can intentionally involve students in anchor strategy. The framework derives from The Democracy Collaborative’s Anchor Institution Community Benefit Dashboard. Expert participants ranked all items included in the framework as to their potential to influence student civic learning and democratic engagement. Implications of this research study include the potential for IHEs to consider, strategically, ways to align student civic learning with anchor institution practices for the advancement of both pursuits.