bluuebunny/crossref_metadata_2025_split huggingface dataset:
Orbital infarction syndrome after cerebral aneurysm surgery
Authors: Choi Sung Won , Kang Kyung Tae , Jun Jong Hwa , Jang Ji Hye , Kim Yu Cheol 
Published: July 2020

Abstract
To report the clinical characteristics and retinal abnormalities associated with orbital infarction syndrome after cerebral aneurysm clipping surgery.
In this retrospective case series, we evaluated 4 cases of orbital infarction syndrome using fluorescein angiography, optical coherence tomography, and computed tomography images from January 2011 to May 2014. The medical records of these patients including age, sex, laterality of the eyes, visual acuity, intraocular pressure, duration of the operation, location of the aneurysms, and surgical method with the type of approach used to reach the aneurysmal lesions were evaluated.
Aneurysms were located in either the anterior or the posterior communicating artery. Two patients had subarachnoid hemorrhage arising from a ruptured aneurysm, whereas 2 other patients had unruptured aneurysms. Clipping was performed by 3 different surgeons using the pterional craniotomy. The mean time interval from aneurysmal clipping to awareness of vision loss was 10.75 ± 13.8 days. In all patients, optic atrophy and irreversible deterioration of visual acuity ensued. Retinal edema, retinal vascular abnormality, or choroidal hypoperfusion was identified in these patients.
Orbital infarction syndrome is a rare but devastating complication of brain aneurysm clipping surgery. The associated retinal ischemia is not only due to the involvement of the retinal vessels, but also the choroidal circulation.
Traditional Chinese medicine for myasthenia gravis
Authors: Xie Rongfang , Liu Liting , Wang Ruiqi , Huang Chunhua 
Published: July 2020

Abstract

Background:
Myasthenia gravis (MG) is a disease that is difficult to cure, mainly manifested in the affected skeletal muscle weakness and morbid fatigue, which seriously affects the patients’ daily life and work. A large number of randomized controlled trial have shown that Traditional Chinese medicine (TCM) has a good effect in treating MG. However, due to the variety of TCM treatment methods, its relative effectiveness and safety have not been verified. Therefore, this study will use a network meta-analysis method to verify the effectiveness and safety of different types of TCM in the treatment of MG.

Methods:
We will search the following databases from inception to June 2020: the China National Knowledge Infrastructure, Wanfang Database, Chinese Science and Technology Periodical Database, Chinese Biomedical Literature Database, Pubmed, Embase, Web of Science, and the Cochrane library. Collect all randomized controlled trial of TCM for the treatment of MG, The 2 authors will independently select studies and extract data based on pre-designed inclusion and exclusion criteria. Methodological quality assessment and risk of bias will be assessed using Cochrane bias risk tool. All data analysis will be conducted using Revman5.3, WinBUGS 1.4.3, and Stata14.2 software.

Results:
This study will directly and indirectly compare the different outcome indicators of various studies, and rank the effectiveness of different TCM methods. The main outcome indicators include effectiveness, remission rate (no drug symptoms), relapse rate, clinical absolute score, and relative score. Secondary outcome indicators: including any related adverse reactions, the concentration of acetylcholine receptor antibody in serum.

Conclusion:
The conclusion of this systematic review will provide credible Evidence-based for the relative advantages of different TCM treatment methods for MG.
Coronavirus disease 2019 (COVID-19) in pregnancy: 2 case reports on maternal and neonatal outcomes in Yichang city, Hubei Province, China
Authors: Zheng Tingting , Guo Jianqiang , He Wencong , Wang Hao , Yu Huiling , Ye Hong 
Published: July 2020

Abstract

Rationale:
The outbreak of coronavirus disease 2019 (COVID-19) in 2019 has become a global pandemic. It is not known whether the disease is associated with a higher risk of infection in pregnant women or whether intrauterine vertical transmission can occur. We report 2 cases of pregnant women diagnosed with COVID-19.

Patient concerns:
In all of Yichang city from January 20, 2020, to April 9, 2020, only 2 pregnant women, who were in the late stage of pregnancy, were diagnosed with COVID-19; one patient was admitted for fever with limb asthenia, and the other patient was admitted for abnormal chest computed tomography results.

Diagnoses:
Both pregnant women were diagnosed with COVID-19.

Interventions:
After the medical staff prepared for isolation and protection, the 2 pregnant women quickly underwent cesarean sections. A series of tests, such as laboratory, imaging, and SARS-CoV-2 nucleic acid examinations, were performed on the 2 women with COVID-19 and their newborns.

Outcomes:
One of the 2 infected pregnant women had severe COVID-19, and the other had mild disease. Both babies were delivered by cesarean section. Both of the women with COVID-19 worsened 3 to 6 days after delivery. Chest computed tomography suggested that the lesions due to SARS-CoV-2 infection increased. These women began to exhibit fever or reduced blood oxygen saturation again. One of the 2 newborns was born prematurely, and the other was born at full term. Neither infant was infected with COVID-19, but both had increased prothrombin time and fibrinogen, lactate dehydrogenase, phosphocreatine kinase, and creatine kinase isoenzyme contents.

Lessons:
SARS-CoV-2 infection was not found in the newborns born to the 2 pregnant women with COVID-19, but transient coagulation dysfunction and myocardial damage occurred in the 2 newborns. Effective management strategies for pregnant women with COVID-19 will help to control the outbreak of COVID-19 among pregnant women.
Psychological symptoms in anophthalmic patients wearing ocular prosthesis and related factors
Authors: Wang Kai Jie , Li Sha Sha , Wang Hai Yan 
Published: July 2020

Abstract
Anophthalmic patients not only cause obvious functional deficits and facial deformities, but lead to poor psychological outcomes, although prosthesis wearing can offer improvements in psychological well-being to some extent. The study aimed to comprehensively evaluate the psychological symptoms and analyze related factors in anophthalmic patients wearing ocular prosthesis.
Total of 150 anophthalmic patients and 120 control subjects were included in this cross-sectional study. Baseline characteristics survey and the symptom checklist-90 scale were completed by all participants to assess the psychological symptoms and analyze their related factors by multivariate analysis.
The anophthalmic patients exhibited the increased levels of somatization, depression, anxiety, and hostility compared with control subjects. The most prominent symptom was hostility with the median score of 1.20. Female patients presented with higher somatization, depression, anxiety, and hostility. Marital status single was positively associated with depression, anxiety, and hostility symptoms. Lower education and cause of enucleation were related to higher levels of hostility.
Anophthalmic patients wearing ocular prosthesis presented with more prominent hostility and somatization besides its higher depression and anxiety symptoms. The findings suggest that for female single anophthalmic patients with low education, especially caused by trauma, timely psychological assessment and intervention should be provided to avoid undesirable consequences.
Habitual volar dislocation of the ulnar head with a locked distal radioulnar joint after distal radius fracture
Authors: Tomori Yuji , Nanno Mitsuhiko , Takai Shinro 
Published: July 2020

Abstract

Rationale:
Habitual volar dislocation of the ulnar head with a locked distal radioulnar joint (DRUJ) is a rare complication after distal radius fracture. We present a case of habitual volar dislocation of the ulnar head in a woman with a dorsally displaced malunited distal radius fracture.

Patient concerns:
A 72-year-old woman presented with occasional painful locking of the forearm in full supination. She had fractured the left distal radius in a fall 6 months previously. The fracture had been treated non-surgically with wrist immobilization in a long and short arm cast for 6 weeks. Physical examination showed no swelling of the left hand. The wrist locked when the forearm was fully supinated, and the patient was not able to pronate her forearm without reducing the ulna by pressing the left ulna down toward the DRUJ. She experienced sharp pain during the reduction procedure and pronation of the left forearm. The affected wrist had 91% motion compared with the contralateral wrist.

Diagnosis:
Radiography and computed tomography showed 28° dorsally angulated malunion of the distal radius and ulnar head subluxation with respect to the radius. Magnetic resonance imaging revealed disruption of the ulnar-side triangular fibrocartilage complex (TFCC) from the ulna fovea.

Interventions:
The patient desired surgery to address the painful click during full supination of her left wrist and the limitations in her activities of daily living. Corrective osteotomy of the distal radius and arthroscopic repair of the ulnar-side tear of the TFCC were performed. The TFCC was arthroscopically repaired to the ulnar fovea to stabilize the DRUJ.

Outcomes:
At 1 year postoperatively, radiography showed complete union of the radius. The affected side had 97% wrist motion compared with the contralateral wrist and a full range of forearm rotation without pain or clicking. The grasp strength was 100% compared with the normal wrist.

Lessons:
Malunited distal radius fracture with concomitant TFCC injury can result in habitual volar dislocation of the ulnar head due to severely dorsally angulated malunion of the radius and avulsion of the ulnar-side TFCC from the ulna fovea. This condition required corrective osteotomy plus TFCC repair.
An infant with coronavirus disease 2019 in China
Authors: Cao Wen , Mai Gang , Liu Zhen , Ren Haoyuan 
Published: July 2020

Abstract

Rationale:
In December 2019, an outbreak of coronavirus disease 2019 (COVID-19) occurred in Wuhan, China. The initial epidemiological investigations showed that COVID-19 occurred more likely in adults, with patients younger than 10 years old accounting for less than 1% of the total number of confirmed cases, and infant infections were more rare. In our case, we present an infant who was only 35 days old when he was tested positive for COVID-19.

Patient concerns:
In this report, a 35 day-old male infant with atypical symptoms had close contact with 2 confirmed patients of COVID-19 who were his grandmother and mother.

Diagnosis:
The patient was diagnosed as COVID-19 after his oropharyngeal swab tested positive for severe acute respiratory syndrome coronavirus 2 by reverse transcription-polymerase chain reaction assay.

Interventions:
The therapeutic schedule included aerosol inhalation of recombinant human interferon α-2b and supportive therapy.

Outcomes:
Two consecutive (1 day apart) oropharyngeal swabs tested negative for severe acute respiratory syndrome coronavirus 2; then, the patient was discharged on February 27, 2020.

Lessons:
Strengthening infants’ virus screening in families with infected kins is important for early diagnosis, isolation, and treatment when symptoms are atypical. The infectivity of infants with mild or asymptomatic COVID-19 should not be ignored because this may be a source of transmission in the community.
Circular cities: the case of Singapore
Authors: Carrière Sann , Weigend Rodríguez Ricardo , Pey Peixun , Pomponi Francesco , Ramakrishna Seeram 
Published: July 2020

PurposeCircular economy (CE), as a new economic paradigm, has gained traction in recent years. Cities' role in driving CE forward has been perceived as being increasingly important to achieve sustainable development (SD). For this reason, there is an urgency to understand what a circular city is and how it might be composed. This research explores the ways in which the city-state of Singapore is transitioning to a CE.Design/methodology/approachA systematic literature review on CE and cities was carried out using a bibliometric review and a snowballing technique. This review was performed on academic and on non-academic papers.FindingsThis research has confirmed the lack of robust circular cities case studies. As Singapore has already begun its journey towards circularity, this article examines its current efforts and offers recommendations in the design and implementation of CE policies that may be valuable not just for Singapore but also for high-density and rapidly expanding cities around the world that require a new development pathway to emulate.Originality/valueThis manuscript is the first detailed, independent and comprehensive review of Singapore's approach to CE.
Managing family business tensions: the narrative of family history
Authors: Arteaga Rocio , Uman Timur 
Published: July 2020

PurposeThis study explores the family governance structures that family firms employ to manage family business tensions.Design/methodology/approachBuilding on socioemotional wealth perspective and adopting a narrative methodological approach, the study analyses nine unique narratives of representatives of three Swedish family firms.FindingsThe study illustrates how the hybrid arena created between formal and informal family meetings is used as a governance structure for mitigating tensions by reinforcing family relational ties.Research limitations/implicationsBased on the findings, this study suggests how reliance on hybrid arena informs the field of family business management and governance and suggests future research directions.Practical implicationsThe findings of this study provide opportunities for family business practitioners, including owners, family members, family firm advisers and other stakeholders, to effectively manage family business tensions and foster socioemotional wealth.Originality/valueIn family firms, tensions can arise due to a desire for the preservation of socioemotional wealth. The authors show that these tensions may be managed by using informal and formal family meetings that create a hybrid arena where family members separate family and business issues and emotional and rational reactions, thereby avoiding negative emotions and creating a culture of harmony within the family.
Quantifying farmers’ climate change adaptation strategies and the strategy determinants in Southwest China
Authors: Sujakhu Nani Maiya , Ranjitkar Sailesh , Yang Hua , Su Yufang , Xu Jianchu , He Jun 
Published: July 2020

PurposeThis paper aims to document the adaptation strategies developed by local farmers to adjust to climate change and related hazards in Lijiang Prefecture in Southwest China, and quantify the determinants of the adaptation measures.Design/methodology/approachThe study conducted a household survey with 433 respondents in Lijiang to documents adaptation measures. The authors used a multivariate probit model to quantify five categories of adaptation measures against a set of household features, extension and information, resources, social network, financial assets and perception variables.FindingsThe most significant determinants consisted of information on early climate warnings and impending hazards, ownership to land and livestock, irrigation membership in community-based organisations, household savings, cash crop farming and perceptions of climate change and its related hazards. Adaptation strategies and policies highlighting these determinants could help to improve climate change adaptation in the region.Originality/valueThis study quantified the determinants of adaptive strategies and mapped important determinants for the region that will provide farmers with the appropriate resources and information to implement the best practices for adapting to climatic changes. The method and findings could be useful and easily replicable for future agriculture policies.
International assignments of employees and entrepreneurial intentions: the mediating role of human capital, social capital and career prospects
Authors: Schlepphorst Susanne , Koetter Elizabeth C. , Werner Arndt , Soost Christian , Moog Petra 
Published: July 2020

PurposeDrawing on human capital (HC) and social capital (SC) as well as the Jack-of-all-trades theory, this paper aims to clarify the relationship between international assignments (IAs) of employees and their entrepreneurial intentions. The study proposes that such IAs provide specific environmental features which may enable employees to build up diverse skills and network relations conducive to entrepreneuship.Design/methodology/approachThe authors collected data using an online survey, targeting professionals and managers in Germany and Switzerland. They used 223 complete responses. Before data collection, they ensured the suitability of their questionnaire by employing well-tested scales and consulted independent experts in survey design and methodology. They tested their hypotheses by applying multiple mediation modeling.FindingsAs hypothesized, the authors find empirical evidence that diverse skills and network relationships as well as poor career prospects, positively mediate the relationship between IAs and entrepreneurial intentions of employees.Research limitations/implicationsWe applied simple random and the snowball sampling method. Our approach involved the use of headhunters, international employers and relocation companies as multipliers.Practical implicationsOur results have practical implications for employees and employers. Employees on international assignments can proactively pursue opportunities in order to utilize the acquired experiences and resources for taking up entrepreneurial activities. Employers can try to retain these employees to facilitate (international) corporate entrepreneurship.Originality/valueTo the best of our knowledge, this is the first empirical study to highlight the entrepreneurial ambitions of international assignees. It thus provides initial insights into this topic.
Sustainable development of micro firms: examining the effects of cooperation on handicraft firm's performance through innovation capability
Authors: Shafi Mohsin 
Published: July 2020

PurposeDespite their economic and cultural significance, the growth of handicraft micro firms is vulnerable, given their small size and resource limitations. By examining the impact of cooperation on firm performance via innovation capability, this study shows how micro firms can address constraints and achieve sustainable development by acquiring and utilizing external resources, complemented by innovation capability, through internal development.Design/methodology/approachData were collected from 164 handicraft micro firms in Pakistan via a questionnaire. Structural equation modeling was employed to estimate interrelations of various constructs simultaneously and control measurement errors.FindingsThe impact of cooperation with customers and suppliers on firm performance via innovation capability was positive and significant. Contrarily, competitor cooperation did not significantly affect innovation capability. Furthermore, there was a positive and significant interaction effect of customer and competitor cooperation on innovation capability. Thus, micro firms must reinforce their customer and supplier relationships through innovation capability and internal transformation for sustainable development. Moreover, a balance must exist between cooperation and competition to achieve optimal innovation returns for the sustainable development of firms.Originality/valueThis study emphasized that micro firms must strengthen their customer and supplier relationships via innovation capability and internal development to achieve higher performance. Moreover, the study introduced a new dimension for measuring firm performance.
Modeling and analysis of structure parameters on the lifting force for power catwalk
Authors: Sun Qiaolei , He Liang , Feng Ding , Chen Xinlong , Ding Liangliang , Tu Yiliu 
Published: July 2020

Purpose
As the excessive lifting force can lead to catwalk rollover and well site accidents, the lifting process boundary conditions and structural parameters have a significant effect lifting force, it is important to analysis the structural parameters on the maximum lifting force in the lifting process of power catwalk.

Design/methodology/approach
A new model is proposed to analyze the influence of structure parameters on its lifting force for lifting power catwalk in this paper, and the geometric and dynamic equations are established according to the different boundary conditions in different stages. In addition, the establishment of dynamics equations is based on D'Alembert's principle. To solve the model, dynamic analysis software is developed, which uses c # call MATLAB to solve the geometric and dynamic equations. The maximum lifting force is analyzed and optimized according to the software, the influence of structural parameters on the maximum lifting force is obtained and the correctness of the optimization is proved by experiments.

Findings
The best value of offset e is 0. The length of L22 should as small as possible while the installation size of the end of the conveying arm are guaranteed. The length of L1 should as small as possible while ensuring the not exceed the maximum value. The maximum lifting force remain the same in the second phase, the maximum lifting force decreases with the increase of Lcp, Lcpshould as small as possible. The maximum pressure of the hydraulic oil dropped by an average of 13.62% under optimized parameters.

Practical implications
This paper provides a theoretical basis for the selection of hydraulic winch, which also provides the theoretical basis and data support for the design and optimization of the structural parameters of the power catwalk.

Social implications
This research has industrial applications in SJ Petroleum Machinery CO.LTD, SINOPEC (China) .CANRIG, North Rig, TESCO, Sichuan HONGHUA petroleum equipment CO.LTD of CNPC., Baoji Oil field Machinery CO.LTD, SJ Petroleum Machinery Co. LTD of SINOPEC, Yantai Jereh Oilfield Services Group CO.LTD, Nanyang clips oil equipment (group) CO. LTD, etc are the likely users.

Originality/value
A new model is proposed to analyze the lifting force of lifting power catwalk. The model takes into account the inertia force of the structure, development of dynamics software and analysis and optimization of structural parameters. The maximum lifting force is analyzed and optimized according to the software, the influence of structural parameters on the maximum lifting force is obtained and the correctness of the optimization is proved by experiments.