bluuebunny/crossref_metadata_2025 huggingface dataset:
The Role of Social Computing Technologies in Grassroots Movement Building
Authors: Ghoshal Sucheta , Bruckman Amy
Published: June 2019

Social movement organizing is becoming increasingly dependent on communication technologies. How can Computer-Supported Cooperative Work systems support grassroots organizations in facilitating collective action through democratic participation? In this article, we study Science for the People-Atlanta, a social movement organization dedicated to building a grassroots movement around science activism. We used action research, both participating in the organization and studying it. We use the Freirean model of participatory communication theory to unpack the movement-building process of SftP-Atlanta. The Freirean model provides a three-step, iterative process for sustainable movement building: forming a collective identity, moving toward collective action, and engaging in reflexive dialog. We analyze both the perceived strengths and weaknesses of their sociotechnical practices in supporting the organization as they iteratively go through the phases of the Freirean model. Finally, we identify
inclusivity
,
privacy/security
, and
social translucence
as three values desirable for sociotechnical practices of grassroots organizing.
Chinese Zero Pronoun Resolution
Authors: Kong Fang , Zhang Min , Zhou Guodong
Published: June 2019

Chinese zero pronoun (ZP) resolution plays a critical role in discourse analysis. Different from traditional mention-to-mention approaches, this article proposes a chain-to-chain approach to improve the performance of ZP resolution in three aspects. First, consecutive ZPs are clustered into coreferential chains, each working as one independent anaphor as a whole. In this way, those ZPs far away from their overt antecedents can be bridged via other consecutive ZPs in the same coreferential chains and thus better resolved. Second, common noun phrases (NPs) are automatically grouped into coreferential chains using traditional approaches, each working as one independent antecedent candidate as a whole. That is, those NPs occurring in the same coreferential chain are viewed as one antecedent candidate as a whole, and ZP resolution is made between ZP coreferential chains and common NP coreferential chains. In this way, the performance can be much improved due to the effective reduction of the search space by pruning singletons and negative instances. Third and finally, additional features from ZP and common NP coreferential chains are employed to better represent anaphors and their antecedent candidates, respectively. Comprehensive experiments on the OntoNotes V5.0 corpus show that our chain-to-chain approach significantly outperforms the state-of-the-art mention-to-mention approaches. To our knowledge, this is the first work to resolve zero pronouns in a chain-to-chain way.
A
2
CMHNE
Authors: Hu Jun , Qian Shengsheng , Fang Quan , Liu Xueliang , Xu Changsheng
Published: June 2019

Network representation learning is playing an important role in network analysis due to its effectiveness in a variety of applications. However, most existing network embedding models focus on homogeneous networks and neglect the diverse properties such as different types of network structures and associated multimedia content information. In this article, we learn node representations for multimodal heterogeneous networks, which contain multiple types of nodes and/or links as well as multimodal content such as texts and images. We propose a novel attention-aware collaborative multimodal heterogeneous network embedding method (A
2
CMHNE), where an attention-based collaborative representation learning approach is proposed to promote the collaboration of structure-based embedding and content-based embedding, and generate the robust node representation by introducing an attention mechanism that enables informative embedding integration. In experiments, we compare our model with existing network embedding models on two real-world datasets. Our method leads to dramatic improvements in performance by 5%, and 9% compared with five state-of-the-art embedding methods on one benchmark (M10 Dataset), and on a multi-modal heterogeneous network dataset (WeChat dataset) for node classification, respectively. Experimental results demonstrate the effectiveness of our proposed method on both node classification and link prediction tasks.
On the Verification of Livelock-Freedom and Self-Stabilization on Parameterized Rings
Authors: Klinkhamer Alex , Ebnenasir Ali
Published: June 2019

This article investigates the verification of livelock-freedom and self-stabilization on parameterized rings consisting of symmetric, constant space, deterministic, and self-disabling processes. The results of this article have a significant impact on several fields, including scalable distributed systems, resilient and self-
*
systems, and verification of parameterized systems. First, we identify necessary and sufficient local conditions for the existence of global livelocks in parameterized unidirectional rings with unbounded (but finite) number of processes under the interleaving semantics. Using a reduction from the periodic domino problem, we show that, in general, verifying livelock-freedom of parameterized unidirectional rings is undecidable (specifically, Π
1
0
-complete) even for constant space, deterministic, and self-disabling processes. This result implies that verifying self-stabilization for parameterized rings of self-disabling processes is also undecidable. We also show that verifying livelock-freedom and self-stabilization remain undecidable under (1) synchronous execution semantics, (2) the FIFO consistency model, and (3) any scheduling policy. We then present a new scope-based method for detecting and constructing livelocks in parameterized rings. The proposed semi-algorithm behind our scope-based verification is based on a novel paradigm for the detection of livelocks that totally circumvents state space exploration. Our experimental results on an implementation of the proposed semi-algorithm are very promising as we have found livelocks in parameterized rings in a few microseconds on a regular laptop. The results of this article have significant implications for scalable distributed systems with cyclic topologies.
Fault Tolerance Technique Offlining Faulty Blocks by Heap Memory Management
Authors: Jun Jaeyung , Paik Yoonah , Min Gyeong Il , Kim Seon Wook , Han Youngsun
Published: June 2019

As dynamic random access memory (DRAM) cells continue to be scaled down for higher density and capacity, they have more faults. Thus, DRAM reliability becomes a major concern in computer systems. Previous studies have proposed many techniques preserving the reliability in various system components, such as DRAM internal, memory controller, caches, and operating systems. By reviewing the techniques, we identified the following two considerations: First, it is possible to recover faults with reasonable overhead at high fault rate only if the recovery unit is fine-grained. Second, since hardware modification requires additional cost in the employment of a technique, a pure software-based recovery technique is preferable. However, in the existing software-based recovery technique, the recovery unit is too coarse-grained to tolerate the high fault rate.

In this article, we propose a pure software-based recovery technique with fine-granularity. Our key idea is based on heap segments being managed by the system library with variable-sized chunks to handle dynamic allocation in user applications. In our technique, faulty blocks in pages are offlined by marking them as allocated chunks. Thus, not only fault-free pages but also the remaining clean blocks in faulty pages are allowed to be usable space. Our technique is implemented by modifying the operating system and the system library. Since hardware assistance is unnecessary in the implementation, we evaluated our method on a real machine. Our evaluation results show that our technique has negligible performance overhead at high bit error rate (BER) 5.12e-5, which a hardware-based recovery technique could not tolerate without unacceptable area overhead. Also, at the same BER, our method provides 5.22× usable space, compared with page-offline, which is the state-of-the-art pure software-based technique.
Slow-wave coupling across a gastroduodenal anastomosis as a mechanism for postsurgical gastric dysfunction: evidence for a “gastrointestinal aberrant pathway”
Authors: Wang Tim H.-H. , Angeli Timothy R. , Beban Grant , Du Peng , Bianco Francesca , Gibbons Simon J. , Windsor John A. , Cheng Leo K. , O’Grady Gregory
Published: June 2019

Postsurgical gastric dysfunction is common, but the mechanisms are varied and poorly understood. The pylorus normally acts as an electrical barrier isolating gastric and intestinal slow waves. In this report, we present an aberrant electrical conduction pathway arising between the stomach and small intestine, following pyloric excision and surgical anastomosis, as a novel disease mechanism. A patient was referred with postsurgical gastroparesis following antrectomy, gastroduodenostomy, and vagotomy for peptic ulceration. Scintigraphy confirmed markedly abnormal 4-h gastric retention. Symptoms included nausea, vomiting, postprandial distress, and reflux. Intraoperative, high-resolution electrical mapping was performed across the anastomosis immediately before revision gastrectomy, and the resected anastomosis underwent immunohistochemistry for interstitial cells of Cajal. Mapping revealed continuous, stable abnormal retrograde slow-wave propagation through the anastomosis, with slow conduction occurring at the scar (4.0 ± 0.1 cycles/min; 2.5 ± 0.6 mm/s; 0.26 ± 0.15 mV). Stable abnormal retrograde propagation continued into the gastric corpus with tachygastria (3.9 ± 0.2 cycles/min; 1.6 ± 0.5 mm/s; 0.19 ± 0.12 mV). Histology confirmed ingrowth of atypical ICC through the scar, defining an aberrant pathway enabling transanastomotic electrical conduction. In conclusion, a “gastrointestinal aberrant pathway” is presented as a novel proposed cause of postsurgical gastric dysfunction. The importance of aberrant anastomotic conduction in acute and long-term surgical recovery warrants further investigation.

NEW & NOTEWORTHY High-resolution gastric electrical mapping was performed during revisional surgery in a patient with severe gastric dysfunction following antrectomy and gastroduodenostomy. The results revealed continuous propagation of slow waves from the duodenum to the stomach, through the old anastomotic scar, and resulting in retrograde-propagating tachygastria. Histology showed atypical interstitial cells of Cajal growth through the anastomotic scar. Based on these results, we propose a “gastrointestinal aberrant pathway” as a mechanism for postsurgical gastric dysfunction.
Sentinel Lymph Node–Targeted Therapy by Oncolytic Sendai Virus Suppresses Micrometastasis of Head and Neck Squamous Cell Carcinoma in an Orthotopic Nude Mouse Model
Authors: Tanaka Yuya , Araki Koji , Tanaka Shingo , Miyagawa Yoshihiro , Suzuki Hiroshi , Kamide Daisuke , Tomifuji Masayuki , Uno Kosuke , Kimura Eiko , Yamashita Taku , Ueda Yasuji , Shiotani Akihiro
Published: June 2019

In clinical N0 (cN0) cases with head and neck squamous cell carcinoma (HNSCC), a treatment selection is still controversial: elective neck dissection or watchful waiting. We focused on sentinel lymph node (SLN)–targeted therapy using the urokinase-type plasminogen activator (uPA)-dependent oncolytic Sendai virus “BioKnife.” The objectives of this study were to investigate BioKnife migration into SLNs and elucidate its antitumor effect on lymph node metastases (LNM). We established an orthotopic nude mouse model of HNSCC, with LNM being frequently induced. We inoculated HSC-3-M3, human highly metastatic tongue squamous cell carcinoma cells, in the tongue of the nude mice, and after 2 weeks, we injected BioKnife into the primary tumor. We tracked BioKnife migration into the SLNs by immunostaining, RT-PCR, and an in vivo imaging system. We also examined its antitumor effects and mechanisms through serial section analysis of lymph nodes. GFP reporter expression was clearly visible in the lymph nodes of virus groups, which corresponded to SLNs. Relative GFP mRNA was significantly increased in both the tongues and lymph nodes in the virus groups compared with that in the control group (P < 0.05). Serial section analysis showed that BioKnife infected cancer cells and exhibited significant antitumor effect against LNM compared with the control groups (P < 0.05). We detected apoptosis in LNM infected by BioKnife. BioKnife migrated into SLNs after its injection into the primary tumor and effectively suppressed LNM, suggesting that SLN-targeted therapy using BioKnife has great potential to provide a novel and promising alternative to elective neck dissection in cN0 patients with HNSCC.
Prevalence and Incidence of Multiple Sclerosis in the City of Biancavilla
Authors: Patti Francesco , Caserta Cinzia , Colandonio Salvatore , Iudica Maria Luisa , Maimone Davide , Lo Fermo Salvatore , D’Amico Emanuele , Chisari Clara , Mayer Flavia , Vanacore Nicola
Published: June 2019

Background: It is common that the epidemiology of multiple sclerosis (MS) varies with geography and ethnicity. Recent studies show a continuous growth of incidence and prevalence in Sicily, despite the controversial “latitude gradient theory.” Objectives: The aim of our study is to ascertain incidence and prevalence rates of MS in the city of Biancavilla, Sicily, Southern Italy. Method: Case ascertainment approach and a clinical database collecting data of MS cases to Biancavilla, according to McDonald 2011 and Thompson 2018 criteria, from 1992 to 2018, have been used to the study. We further collected information regarding the familiarity of patients with Mesothelioma, highly incident in this geographic area. Results: The results showed an increase of the mean annual incidence for the period 2012–2018 (16.8/100,000) compared to 1992–1996 (4.5/100,000), and a standardized incidence ratio of 1.41 (95% CI 0.74–2.45). On December 31, 2018, 70 patients suffering from definite MS and living in Biancavilla yielded a crude prevalence of 292.3 per 100,000 (198.2/100,000 for men; 380.7/100,000 for women) with a standardized morbidity ratio of 2.3 (95% CI 1.8–2.9). Conclusions: Our data confirmed Biancavilla is an area at high risk for MS, ascribable to increased survival, improved ascertainment, or maybe related to a genetic or environmental risk. At the time, any relation with mesothelioma was excluded.
A Case of Giant Macular Hole Progression after Rupture of a Giant Retinal Pigment Epithelial Detachment
Authors: Nagaoka Kosuke , Inoda Satoru , Takahashi Hidenori , Arai Yusuke , Inoue Yuji , Takizawa Yuichi , Fujioka Shinkin , Kawashima Hidetoshi
Published: June 2019

We report a case of giant macular hole progression after rupture of giant retinal pigment epithelial detachment (PED). The patient was a 91-year-old man who had a giant PED in the left eye. He had bilateral hypermetropia (+2.00 dpt), and he had developed posterior vitreous detachment. The PED was 5,800 μm in diameter and 800 μm in height and ruptured during follow-up. A macular hole was formed, with a diameter of 400 μm, and the height of the PED had reduced to 360 μm. After 5 months, the macular hole expanded up to a diameter of 600 μm. Therefore, some cases of giant PED may lead to macular hole.
Recovery of Vision following Enzyme Replacement Therapy in a Patient with Mucopolysaccharidosis Type II, Hunter Syndrome
Authors: Yamanishi Ryutaro , Nakamura Natsuko , Tsunoda Kazushige
Published: June 2019

We analyzed the effects of enzyme replacement therapy (ERT) on the visual acuity and visual fields of a patient with mucopolysaccharidosis type II, Hunter syndrome, with degeneration of the retina and abnormalities of the optic nerve. After the ERT, there was an improvement of the visual acuity and visual fields and an improvement of the activities of daily living. Despite the late onset of Hunter syndrome in this patient, ERT was still able to improve the visual function. We conclude that ERT should be considered regardless of the age of the manifestations of the signs and symptoms of Hunter syndrome.
Linear and Annular Lupus Panniculitis of the Scalp: Case Report with Emphasis on Trichoscopic Findings and Review of the Literature
Authors: Udompanich Siriorn , Chanprapaph Kumutnart , Suchonwanit Poonkiat
Published: June 2019

Linear and annular lupus panniculitis of the scalp (LALPS) is a unique subset of lupus panniculitis, which results in non-scarring alopecia along the Blaschko line of the scalp in an otherwise healthy young patient. Numerous cases have been reported around the world, but data on their trichoscopic findings and correlations with the underlying pathology is sparse. We hereby present a case of 23-year-old male with LALPS and further describe his trichoscopic findings as well as their correlations with histopathological features.
Apparent Declining Prognostic Value of a Negative Stress Echocardiography Based on Regional Wall Motion Abnormalities in Patients With Normal Resting Left Ventricular Function Due to the Changing Referral Profile of the Population Under Study
Authors: Cortigiani Lauro , Urluescu Mădălina-Loredana , Coltelli Maico , Carpeggiani Clara , Bovenzi Francesco , Picano Eugenio
Published: June 2019

Background:

Cardiology guidelines identify the low-risk response during stress echocardiography as the absence of regional wall motion abnormalities.

Methods:

From 1983 to 2016, we enrolled 5817 patients (age 63±12 years; 2830 males) with suspected coronary artery disease, normal regional, and global left ventricular function at rest and during stress (exercise in 692, dipyridamole in 4291, and dobutamine in 834). Based on timing of enrollment, 4 groups were identified in chronological order of recruitment: years 1983 to 1989, group 1 (n=211); years 1990 to 1999, group 2 (n=1491); years 2000 to 2009, group 3 (n=3285); and years 2010 to 2016, group 4 (n=830).

Results:

There were 240 (4%) events (119 deaths and 121 infarctions) in the follow-up. At 1-year follow-up, the event rate was 0.5% (95% CI, 0.05–0.95), 1.5% (95% CI, −1.18 to 1.82), 1.9% (95% CI, 1.63–2.17), and 1.7% (95% CI, 1.01–2.39; χ
2
, 9.0;
P
=0.03) in groups 1 to 4, respectively. At multivariable Cox analysis, independent predictors of future events were age (hazard ratio (HR), 1.05; 95% CI, 1.04–1.07;
P
<0.0001), male sex (HR, 1.57; 95% CI, 1.20–2.04;
P
=0.001), diabetes mellitus (HR, 1.78; 95% CI, 1.34–2.37;
P
<0.0001), smoking habit (HR, 1.40; 95% CI, 1.05–1.85;
P
=0.02), and ongoing anti-ischemic therapy (HR, 1.50; 95% CI, 1.15–1.97;
P
=0.003)

Conclusions:

Over the past 3 decades, we observed a progressive decline in the prognostic value of a negative test based on regional wall motion abnormalities, likely reflecting both an increase in risk in patients, as well as a potential decrease in test performance due to concomitant anti-ischemic therapy.
Safety of Next-Day Discharge After Transfemoral Transcatheter Aortic Valve Replacement With a Self-Expandable Versus Balloon-Expandable Valve Prosthesis
Authors: Moriyama Noriaki , Vento Antti , Laine Mika
Published: June 2019

Background:

The safety of next-day discharge (NDD) after transcatheter aortic valve replacement (TAVR) with a self-expandable valve is unknown. We investigated the safety of NDD after TAVR in patients who received a self-expandable valve or balloon-expandable valve.

Methods and Results:

We retrospectively evaluated consecutive patients who underwent elective minimalist TAVR between January 2017 and July 2018. We investigated the success rates and predictors of NDD after TAVR. Ninety-day and 1-year outcomes in patients managed with NDD after self-expandable ACURATE neo or balloon-expandable SAPIEN 3 replacement were compared. In 315 TAVRs, 249 patients received an ACURATE neo (n=146) or SAPIEN 3 (n=103) valve. There were no differences in baseline characteristics. In the ACURATE neo and SAPIEN 3 groups, NDD was achieved in 60% (n=87) and 55% (n=57) of patients, respectively (
P
>0.50). Predictors of NDD included chronic obstructive pulmonary disease (odds ratio, 0.49; 95% CI, 0.25–0.94) and low pre-TAVR hemoglobin (odds ratio, 0.98; 95% CI, 0.96–0.99) but not type of valve (odds ratio, 1.20; 95% CI, 0.71–1.98 for ACURATE neo). After excluding non-NDD cases, there were no significant differences in 90-day mortality (0% versus 0%;
P
>0.90) or new pacemaker implantation (1% versus 0%;
P
>0.40) between ACURATE neo and SAPIEN3, respectively. No significant difference in 1-year mortality between ACURATE neo and SAPIEN 3 groups after NDD (8% versus 10%; log-rank,
P
>0.80) was observed.

Conclusions:

The safety of NDD using ACURATE neo was similar that using SAPIEN 3, with comparable 90-day and 1-year outcomes.
R
2
eD AVM Score
Authors: Feghali James , Yang Wuyang , Xu Risheng , Liew Jason , McDougall Cameron G. , Caplan Justin M. , Tamargo Rafael J. , Huang Judy
Published: June 2019

Background and Purpose—

The management of unruptured brain arteriovenous malformations remains unclear. Using a large cohort to determine risk factors predictive of hemorrhagic presentation of arteriovenous malformations, this study aims to develop a predictive tool that could guide hemorrhage risk stratification.

Methods—

A database of 789 arteriovenous malformation patients presenting to our institution between 1990 and 2017 was used. A hold-out method of model validation was used, whereby the data was randomly split in half into training and validation data sets. Factors significant at the univariable level in the training data set were used to construct a model based on multivariable logistic regression. Model performance was assessed using receiver operating curves on the training, validation, and complete data sets. The predictors and the complete data set were then used to derive a risk prediction formula and a practical scoring system, where every risk factor was worth 1 point except race, which was worth 2 points (total score varies from 0 to 6). The factors are summarized by R
2
eD arteriovenous malformation (acronym: R
2
eD AVM).

Results—

In 755 patients with complete data, 272 (36%) presented with hemorrhage. From the training data set, a model was derived containing the following risk factors: nonwhite race (odds ratio [OR]=1.8;
P
=0.02), small nidus size (OR=1.47;
P
=0.14), deep location (OR=2.3;
P<
0.01), single arterial feeder (OR=2.24;
P<
0.01), and exclusive deep venous drainage (OR=2.07;
P
=0.02). Area under the curve from receiver operating curve analysis was 0.702, 0.698, and 0.685 for the training, validation, and complete data sets, respectively. In the entire study population, the predicted probability of hemorrhagic presentation increased in a stepwise manner from 16% for patients with no risk factors (score of 0) to 78% for patients having all the risk factors (score of 6).

Conclusions—

The final model derived from this study can be used as a predictive tool that supplements clinical judgment and aids in patient counseling.
Gland composition in sexually dimorphic skin structures of two species of Hylid frogs: Plectrohyla guatemalensis and Ptychohyla hypomykter
Authors: Luna María Celeste , Vásquez-Almazán Carlos Roberto , Faivovich Julian , Brunetti Andrés Eduardo
Published: June 2019

Secondary sexual characters form a diverse group of traits widely spread in amphibians. Within anurans, the Hylini tribe represents an interesting group to examine the evolution of this type of characters because it has different skin structure modifications, including ventrolateral glands, nuptial pads, and unique swollen upper lips. We analysed the skin gland composition in the upper lip of Plectrohyla guatemalensis and the ventrolateral gland of Ptychohyla hypomykter (Hylidae: Hylinae: Hylini). Each of these species is characterized by a different type of sexually dimorphic skin gland; specialized mucous glands (SMGs) in Pl. guatemalensis and specialized serous glands (SSGs) in Pt. hypomykter. The SMGs conform to the general type of sexually dimorphic skin glands in amphibians, whereas SSGs are very rare. Because SMGs are likely involved in the production of sexual pheromones, their distinctive location and their co-occurrence with other secondary sexual characters like long and pointed maxillary and premaxillary teeth in Pl. guatemalensis suggests that the system used for their delivery may be a distinguishing behavioral feature in this species. The presence of both types of glands in Pt. hypomykter (SMGs in nuptial pads, and SSGs in ventrolateral glands) suggests a different or, at least, a complementary role of these two types of glands during reproduction.
Typification of the Linnaean names Plantago afra, P. altissima, and P. lagopus (Plantago subg. Psyllium, Plantaginaceae)
Authors: IAMONICO DUILIO , FORTINI PAOLA , DI PIETRO ROMEO
Published: June 2019

The Linnaean names Plantago afra, P. altissima, and P. lagopus are discussed and typified with specimens preserved at LINN.
New records, taxonomic notes, and the description of a new species of Reduviidae (Hemiptera: Heteroptera) from Ecuador
Authors: GIL-SANTANA HÉLCIO R.
Published: June 2019

Sinchocoris giupponii sp. nov. (Hemiptera: Heteroptera: Reduviidae: Ectrichodiinae) is described. An updated key to the species of Sinchocoris Dougherty, 1995 is presented. Photographs of the type specimens of Sinchocoris colombiensis Dougherty, 1995, S. panamensis Dougherty, 1995, Rhiginia bimaculata Breddin, 1914 and Rhiginia conspersa Breddin, 1901 (Ectrichodiinae) are presented, with short taxonomical notes on all of them. Montina lobata Stål, 1859, Montina sinuosa (Lepeletier & Serville, 1825) and Zelus lewisi Zhang & Hart, 2016 (Harpactorinae, Harpactorini) are recorded from Ecuador for the first time.
Tersilochinae (Hymenoptera: Ichneumonidae) from New Zealand. Part 2. Review of genera Kiwi gen. nov. and Zealochus Khalaim
Authors: KHALAIM ANDREY I. , WARD DARREN F.
Published: June 2019

In the second paper on New Zealand Tersilochinae (Ichneumonidae) we review two endemic New Zealand genera, Kiwi gen. nov. (eight species) and Zealochus Khalaim (three species). Nine species are described as new to science: Kiwi barrattae sp. nov., K. canterberus sp. nov., K. earlyi sp. nov., K. gronous sp. nov., K. oreteus sp. nov., K. ruzelus sp. nov., K. waitakerus sp. nov., Zealochus abominosus sp. nov. and Z. stepheni sp. nov. Zealochus gauldi Khalaim is transferred to Kiwi (comb. nov.). Identification keys to species of Kiwi and Zealochus occurring in New Zealand are provided.
Revision of the Ulopinae leafhoppers (Hemiptera: Cicadellidae) of the Indian subcontinent, I. Ulopini genera: Daimachus, Radhades and Ulopsina
Authors: VIRAKTAMATH C.A. , WEBB M. D.
Published: June 2019

The Ulopinae leafhopper genera of the tribe Ulopini from the Indian subcontinent (Daimachus Distant and Radhades Distant) are redescribed. Four new species of Daimachus are described: D. matheranensis sp. nov. (India: Maharashtra), D. robustus sp. nov. (India: Kerala), D. sirsiensis sp. nov. (India: Karnataka) and D. sudindicus sp. nov. (India: Karnataka, Kerala). Ulopa brunnea Pruthi 1930 is treated as a junior synonym of Daimachus exemplificatus Distant 1916 based on a study of the male genitalia of both species. The latter species, together with Radhades crassus Distant and Ulopsina Dai, Viraktamath & Zhang are redescribed and a new subgenus of Ulopsina, Indoulopa subgen. nov. is described from Sub-Himalayan region with Ulopsina (Indoulopa) himalayana sp. nov. as the type species; the genus is reported for the first time from the subcontinent. Key to genera and species dealt with are also provided, all taxa are illustrated and lectotypes are designated for Daimachus exemplificatus, Ulopa brunnea and Radhades crassus.
A new species of Opisthotropis from northern Vietnam previously misidentified as the Yellow-spotted Mountain Stream Keelback O. maculosa Stuart & Chuaynkern, 2007 (Squamata: Natricidae)
Authors: ZIEGLER THOMAS , PHAM CUONG THE , VAN NGUYEN TAN , NGUYEN TRUONG QUANG , WANG JIAN , WANG YING-YONG , STUART BRYAN L. , LE MINH DUC
Published: June 2019

The Yellow-spotted Mountain Stream Keelback Opisthotropis maculosa was originally described based on a single male specimen from northeastern Thailand. Recently, based on morphological data, new records of this species were published initially from southern China and subsequently from northern Vietnam. In this study, we provide the first molecular comparisons between the holotype and other populations in China and Vietnam using the mitochondrial cytochrome b gene and use an integrative taxonomic approach to show that the population from Vietnam represents a distinct taxon. Opisthotropis haihaensis sp. nov. is characterized by a combination of the following characters: internasal not in contact with loreal; prefrontal not touching supraocular; frontal touching preocular; one preocular; one postocular; one anterior temporal; one posterior temporal; eight supralabials, fourth and fifth in contact with eye; 24 maxillary teeth; anterior pair of chin shields longer than posterior pair; 169 ventrals + 2 preventrals); 79 subcaudals, paired; 15 dorsal scale rows at neck, at midbody and before vent; body and tail scales smooth; chin shields yellow with brownish black mottling; body and tail dorsum dark with each a light spot per scale. Phylogenetically, the new species is supported as the sister taxon to “O. maculosa” from China (but separated by approximately 10% uncorrected pairwise sequence divergence) and is distantly related to O. maculosa sensu stricto from Thailand, warranting a taxonomic revision of the maculosa-like species. According to our results, O. maculosa should be delisted from the herpetofauna of Vietnam, which currently consists of nine Opisthotropis species. Five species, O. cucae, O. daovantieni, O. haihaensis, O. tamdaoensis, and O. voquyi, are endemic to the country.
A Conceptual Spectral Plume Model for Understanding Tropical Temperature Profile and Convective Updraft Velocities
Authors: Zhou Wenyu , Xie Shang-Ping
Published: June 2019

The tropical tropospheric temperature is close to but typically cooler than that of the moist adiabat. The negative temperature deviation from the moist adiabat manifests a C-shape profile and is projected to increase and stretch upward under warming in both comprehensive climate models and idealized radiative–convective equilibrium (RCE) simulations. The increased temperature deviation corresponds to a larger convective available potential energy (CAPE) under warming. The extreme convective updraft velocity in RCE increases correspondingly but at a smaller fractional rate than that of CAPE. A conceptual model for the tropical temperature deviation and convective updraft velocities is formulated to understand these features. The model builds on the previous zero-buoyancy model but replaces the bulk zero-buoyancy plume by a spectrum of entraining plumes that have distinct entrainment rates and are positively buoyant until their levels of neutral buoyancy. Besides the negative temperature deviation and its increasing magnitude with warming, this allows the spectral plume model to further predict the C-shape profile as well as its upward stretch with warming. By representing extreme convective updrafts as weakly entraining plumes, the model is able to reproduce the smaller fractional increase in convective velocities with warming as compared to that of CAPE. The smaller fractional increase is mainly caused by the upward stretch in the temperature deviation profile with warming, which reduces the ratio between the integrated plume buoyancy and CAPE. The model thus provides a useful tool for understanding the tropical temperature profile and convective updraft velocities.
Improving Soil Heat Flux Accuracy with the Philip Correction Technique
Authors: Tong Bing , Sauer Thomas J. , Gao Zhiqiu , Xiao Xinhua , Horton Robert
Published: June 2019

Soil heat flux Gs is an important component of the surface energy balance. Soil heat flux plates (SHFPs) are widely used to measure Gs, although several errors are known to occur. The Philip correction has been applied to minimize errors in Gs measured by SHFPs (Gp) if the soil thermal conductivity λs, SHFP thermal conductivity λp, and plate geometry function H are known. The objective of this study is to evaluate the effectiveness of the Philip correction for a variety of SHFPs. The λp were determined without thermal contact resistance and differed from the manufacturer-specified λp. A simplified H formulation was similar to or less than the full H equation for different SHFP shapes. The G ratio (Gp/Gs) was sensitive to λs/λp and H when they were relatively small. Compared with the Gs determined by a gradient method (Gs_grad), the Gp measured under a full corn (Zea mays, L.) canopy in the field underestimated Gs by 38%–62%. After applying the Philip correction, almost all Gp agreed better with Gs_grad. Generally, the Gp corrected with measured plate parameters agreed better with Gs_grad than those corrected with manufacturer-specified values. The Gp corrected with the simplified and full H expression differed for different SHFPs. These results indicate that SHFPs always underestimate Gs and that the performance of the Philip correction is affected by λp, plate dimensions, and H. An alternative method to measure Gs by a three-needle heat-pulse sensor or a gradient method, in which soil temperature and water content are measured at several depths, is recommended.
The Nature of Eddy Kinetic Energy in the Labrador Sea: Different Types of Mesoscale Eddies, Their Temporal Variability, and Impact on Deep Convection
Authors: Rieck Jan K. , Böning Claus W. , Getzlaff Klaus
Published: June 2019

Oceanic eddies are an important component in preconditioning the central Labrador Sea (LS) for deep convection and in restratifying the convected water. This study investigates the different sources and impacts of eddy kinetic energy (EKE) and its temporal variability in the LS with the help of a 52-yr-long hindcast simulation of a 1/20° ocean model. Irminger Rings (IR) are generated in the West Greenland Current (WGC) between 60° and 62°N, mainly affect preconditioning, and limit the northward extent of the convection area. The IR exhibit a seasonal cycle and decadal variations linked to the WGC strength, varying with the circulation of the subpolar gyre. The mean and temporal variations of IR generation can be attributed to changes in deep ocean baroclinic and upper-ocean barotropic instabilities at comparable magnitudes. The main source of EKE and restratification in the central LS are convective eddies (CE). They are generated by baroclinic instabilities near the bottom of the mixed layer during and after convection. The CE have a middepth core and reflect the hydrographic properties of the convected water mass with a distinct minimum in potential vorticity. Their seasonal to decadal variability is tightly connected to the local atmospheric forcing and the associated air–sea heat fluxes. A third class of eddies in the LS are the boundary current eddies shed from the Labrador Current (LC). Since they are mostly confined to the vicinity of the LC, these eddies appear to exert only minor influence on preconditioning and restratification.
Forecast Sensitivity Observation Impact in the 4DVAR and Hybrid-4DVAR Data Assimilation Systems
Authors: Kim Sung-Min , Kim Hyun Mee
Published: June 2019

In this study, the observation impacts on 24-h forecast error reduction (FER), based on the adjoint method in the four-dimensional variational (4DVAR) data assimilation (DA) and hybrid-4DVAR DA systems coupled with the Unified Model, were evaluated from 0000 UTC 5 August to 1800 UTC 26 August 2014. The nonlinear FER in hybrid-4DVAR was 12.2% greater than that in 4DVAR due to the use of flow-dependent background error covariance (BEC), which was a weighted combination of the static BEC and the ensemble BEC based on ensemble forecasts. In hybrid-4DVAR, the observation impacts (i.e., the approximated nonlinear FER) for most observation types increase compared to those in 4DVAR. The increased observation impact from using hybrid-4DVAR instead of 4DVAR changes depending on the analysis time and regions. To calculate the ensemble BEC in hybrid-4DVAR, analyses at 0600 and 1800 UTC (0000 and 1200 UTC) used 3-h (9-h) ensemble forecasts. Greater observation impact was obtained when 3-h ensemble forecasts were used for the ensemble BEC at 0600 and 1800 UTC, than with 9-h ensemble forecasts at 0000 and 1200 UTC. Different from other observations, the atmospheric motion vectors (AMVs) deduced from geostationary satellite are more frequently observed in the same area. When the ensemble forecasts with longer integration times were used for the ensemble BEC in hybrid-4DVAR, the observation impact of the AMVs decreased the most in East Asia. This implies that the observation impact of AMVs in East Asia shows the highest sensitivity to the integration time of the ensemble members used for deducing the flow-dependent BEC in hybrid-4DVAR.
Remnant Lipoprotein Cholesterol Independently Associates With In-Stent Restenosis After Drug-Eluting Stenting for Coronary Artery Disease
Authors: Xu Xiangyu , Pandit Ram Udgar , Han Le , Li Yan , Guo Xiaomei
Published: June 2019

This study evaluated the prognostic value of remnant lipoprotein cholesterol (RLP-C) as a predictor of in-stent restenosis (ISR) after drug-eluting stent (DES) implantation in patients with coronary artery disease (CAD). Consecutive patients with CAD (n = 612) who underwent both successful coronary DES implantation and follow-up angiography ranging from 6 to 24 months were enrolled. The independent predictors of ISR were explored by multivariate logistic regression analysis; 95 (15.52%) patients were identified to have ISR. Multivariate logistic regression analysis showed that RLP-C concentration (odds ratio [OR]: 4.245, 95% confidence interval [CI]: 2.493-7.229), age (OR: 1.026, 95% CI: 1.002-1.051), diabetes mellitus (DM; OR: 1.811, 95% CI: 1.134-2.892), and lesion length (OR: 1.013, 95% CI: 1.002-1.024) were associated with ISR. Via subgroup analysis, we found that RLP-C was independently associated with ISR in both CAD with DM (OR: 4.154, 95% CI: 1.895-9.104) and CAD without DM (OR: 4.455, 95% CI: 2.097-9.464) groups. In the analysis of the receiver operating characteristics curve, RLP-C level >0.515 mmol/L exhibited 77.9% sensitivity and 56.5% specificity (area under the curve: 0.705, 95% CI: 0.648-0.762) in predicting ISR. In conclusion, RLP-C is independently associated with the development of ISR in patients with CAD after DES implantation.
Performance Evaluation of a Time-Gated Fluorescence Spectroscopy Measurement System for the Classification and Recycling of Plastics
Authors: Fomin Petr , Kargel Christian
Published: June 2019

Plastics have many unrivaled properties and are thus indispensable materials with an ever-increasing production. Since the plastics recycling rates are still small, the plastic waste that ends up on landfills, in the environment including oceans, and incineration plants also steadily grows. Large-scale automated sorting of waste plastics may help solve the problem. However, most state-of-the-art approaches are limited to a (very) small number of plastic types that can be simultaneously sorted and have severe difficulties with black plastics. The labeling of plastics with fluorescent tracers (“markers”) during their production has the potential to enable the fast and highly reliable classification and automated sorting of many different plastic types simultaneously. Unfortunately, the unique marker fluorescence (“optical fingerprint”) might be obscured by the autofluorescence (AF) often emitted by plastics. Recently, we have shown that time-gated fluorescence spectroscopy (TGFS) can be successfully applied to eliminate the influences from AF. In this study, we present the prototype of a TGFS measurement system for the classification and sorting of plastics and evaluate its performance in a typical industrial situation. With 150 000 investigated plastics flakes from 10 different plastic types that were labeled with binary combinations of six fluorescent markers, an overall plastics recovery rate (mean true positive rate [Formula: see text]) of 99.76%, and a plastics purity (positive predictive value [Formula: see text]) of 99.88% were achieved. Additional simulations that were carried out based upon the experiments allow a prediction of the performance as a function of the signal-to-noise (S/N) ratio such that various system parameters can be adapted to the particular situation.
Newsmaking criminology in Australia and New Zealand: Results from a mixed methods study of criminologists’ media engagement
Authors: Iliadis Mary , Richards Imogen , Wood Mark A
Published: June 2019

‘Newsmaking criminology’, as described by Barak, is the process by which criminologists contribute to the generation of ‘newsworthy’ media content about crime and justice, often through their engagement with broadcast and other news media. While newsmaking criminological practices have been the subject of detailed practitioner testimonials and theoretical treatise, there has been scarce empirical research on newsmaking criminology, particularly in relation to countries outside of the United States and United Kingdom. To illuminate the state of play of newsmaking criminology in Australia and New Zealand, in this paper we analyse findings from 116 survey responses and nine interviews with criminologists working in universities in these two countries, which provide insight into the extent and nature of their news media engagement, and their related perceptions. Our findings indicate that most criminologists working in Australia or New Zealand have made at least one news media appearance in the past two years, and the majority of respondents view news media engagement as a professional ‘duty’. Participants also identified key political, ethical, and logistical issues relevant to their news media engagement, with several expressing a view that radio and television interviewers can influence criminologists to say things that they deem ‘newsworthy’.
Do Housing Vacancies Induce More Crime? A Spatiotemporal Regression Analysis
Authors: Chen Xiaojin , Rafail Patrick
Published: June 2019

This study aims to investigate the longitudinal associations between patterns of housing vacancies, neighborhood social disorder, and crime in the city of New Orleans. Using large-scale administrative and contextual data collected from the year 2012 to 2018, our spatiotemporal regression analysis provides empirical evidence for the salient effects of housing vacancy on neighborhood level of property crime and violence. In addition, the spillover effect of housing vacancy is observed on the neighborhood level of drug offense, property crime, and violence. These results potentially identify vacant properties as a modifiable target for intervention to reduce urban crime and suggest that community-based programs aiming to enhance informal social control and collective efficacy may be as important as broken window policing programs.
Tight, Loose, or Decoupling? A National Study of the Decision-Making Power Relationship Between District Central Offices and School Principals
Authors: Xia Jiangang , Shen Jianping , Sun Jingping
Published: June 2019

Do school district central offices and school principals have the same level of influence on school decisions? What does the district–principal power relationship look like? These two questions are discussed but are rarely examined in the literature. Based on a nationally representative sample from the 2007-2008 Schools and Staffing Survey data, we explored these two questions. Specifically, we applied the paired samples t test to compare the district central offices’ and school principals’ influences and applied the multilevel modeling method to estimate the power relationship. We found that (a) on average, districts and principals had the same level of influence on establishing curriculum, whereas school principals had higher influence on the other six decision areas examined (performance standards, teachers’ professional development programs, evaluating teachers, hiring teachers, discipline policies, and school budget), and (b) a tight coupling power relationship between district central offices and school principals was identified for the three areas related to the technical core of schools (performance standards, establishing curriculum, and teachers’ professional development programs), a loose coupling power relationship was revealed for the personnel (hiring and evaluating teachers) and budget areas, while a decoupling power relationship was found for discipline policy decisions. Discussions and implications for school leadership and policy were included in this study.
Part-time employment as a way to increase women’s employment: (Where) does it work?
Authors: Barbieri Paolo , Cutuli Giorgio , Guetto Raffaele , Scherer Stefani
Published: June 2019

Part-time employment has repeatedly been proposed as a solution for integrating women into the labor market; however, empirical evidence supporting a causal link is mixed. In this text, we investigate the extent to which increasing part-time employment is a valid means of augmenting women’s labor market participation. We pay particular attention to the institutional context and the related characteristics of part-time employment in European countries to test the conditions under which this solution is a viable option. The results reveal that part-time employment may strengthen female employment in Continental Europe and especially in Southern Europe, where an increase in part-time employment—even if it is demand-side driven—leads to greater employment participation among women. We also discuss some policy implications and trade-offs: Although part-time work can lead to higher numbers of employed women, it does so at the cost of increasing gendered labor market segregation. We analyze data from the European Labor Force Survey (EU-LFS) 1992–2011 for 19 countries and 188 regions and exploit regional variation over time while controlling for time-constant regional characteristics, time-varying regional labor market features, and (time-varying) confounding factors at the national level.
Gang Involvement and Drug Use Histories Among People Who Inject Drugs in California: A Retrospective Analysis
Authors: Steinberg Jane , Kral Alex H. , Sumstine Stephanie , Wenger Lynn D. , D’Anna Laura , Bluthenthal Ricky N.
Published: June 2019

We examined whether gang membership history was associated with earlier age of first drug use, first drug injection, and shorter time to injection (TTI) drug use among people who inject drugs (PWID). PWID ( N = 438) were interviewed in California (2011-2013). Surveys addressed demographics, current/former drug use practices, gang membership, and parental drug use. Multivariate analyses were conducted to identify whether gang membership history was associated with age at first drug use, first injection drug use, and TTI. Gang membership was reported by 23% of sample. Gang membership history was associated with earlier ages of first drug use (–1.35 years; 95% confidence interval [CI]= [−0.50, −2.20]), age at first injection (–1.89 years; 95% CI = [0.00, −3.78]), but not TTI. Gang involvement facilitates drug use including earlier age of first injection drug use.