bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tracing the origins of rendang and its development
Authors: Rahman Fadly 
Published: September 2020

AbstractOne of the most Indonesian popular food isrendang. In recent years, the popularity of this food goes upward to foreign countries after CNN’s polling in 2011, and 2017 placedrendangat the first number of the most delicious food in the world. Along this time,rendangis often associated with the culture of Malay and Minangkabau. Nevertheless, this research tries to trace the historicity ofrendangand also the possibility of foreign culinary influences which shapes this Minangkabau’s food heritage. By employing the historical method supported with the reading of various primary sources, this article traces the trail ofrendangand resulted fact findings related to foreign culinary influences in West Sumatra and also its development in becoming an Indonesian national food.
The added value of positron emission tomography/computed tomography (PET/CT) in assessment of treatment response of secondary malignant osseous lesions: our experience
Authors: Abdelmohsen Mohsen Ahmed , Omar Walid Mohamed 
Published: September 2020

Abstract
Background
Bone metastasis can be noted in the course of many primary malignant neoplastic lesions; breast and prostate cancers are the most frequent, but lung, kidney, and thyroid malignancies frequently metastasize to bones. Secondary osseous lymphomatous infiltrations is relatively uncommon and mainly noted in patients with non-Hodgkin lymphoma (NHL). By adding the metabolic changes to the conventional CT morphologic changes, combined positron emission tomography (PET) and computed tomography (CT) may offer clinically useful addition in assessment of treatment response of these lesions and offer helpful judgment for the different oncologic therapeutic regimens.

Results
The study included 45 patients, 24 females (53.33%) and 21 males (46.66%). Showing bone dominant or isolated bony secondary malignant infiltrations. The study included 24 patients with history of breast cancer (53.33%), 12 patients with history of lymphoma (26.66%), and 9 patients (20%) with history of lung cancer. All the bony lesions included in the study were multiple lesions in each patient, classified into mixed lytic and sclerotic bony lesions in 21 patients (46.66%), sclerotic lesions in 12 patients (26.66%), and radiologically occult lesions or osteopenic areas in 12 patients (26.66%). The most accurate SUV max cut-off value among studied cases was 4, taking the lesion with highest SUV max value as the reference standard, with measurements taken before and after the medical regimen with six months interval. Confirmation of PET/CT results was done by serial post management follow up at 6 months interval and 1 year interval.

Conclusion
PET/CT study is an effective tool for assessment of treatment response for ossoues secondary malignant lesions.
A case report of colouterine fistula due to colonic diverticulitis: a rare complication
Authors: Pandey Shweta , Maheshwari Saurabh , Rajesh Uddandam , Grewal Darshan Singh , Maria Vibhuti 
Published: September 2020

Abstract
Background
Colouterine fistula is a very rare entity because of the sturdy and muscular nature of the uterus. Due to the rarity of this condition and nonspecific clinical findings, it poses a diagnostic challenge to treating physicians.

Case presentation
Here, we report a case of a 64-year-old female, who presented with lower abdominal pain. Clinically, there was suspicion of a recto-vaginal fistula. However, on imaging, she was found to have a colouterine fistula secondary to sigmoid diverticulitis.

Conclusion
It is essential to be aware of this rare complication of sigmoid diverticulitis. The imaging plays a cardinal role in the diagnosis and guiding the management of this disease.
Multiple biliary hamartomas “von Meyenberg complexes” in a newborn: a unique observation
Authors: Hassan Moaied A. 
Published: September 2020

Abstract
Background
Biliary hamartomas are rare benign bile duct malformations consisting of multiple collections of localized duct-like structures that are lined by biliary epithelium and embedded in a fibrous stroma. In general, these malformations are asymptomatic and are usually detected incidentally during imaging, surgical exploration, or autopsy. Previously, the definitive diagnosis of these lesions was possible only with liver biopsy. The use of advanced imaging modalities made it possible to establish the diagnosis when undoubtful imaging findings are evident.

Case presentation
We present a 25-day-old male newborn who was referred to our institution with jaundice, abdominal distension, and abdominal U/S that revealed hepatomegaly and involvement of both lobes of the liver with diffuse cystic lesions of variable sizes and echogenicity without a diagnostic suggestion. We discuss the details of imaging findings that enabled to establish the diagnosis of multiple biliary hamartomas and brief the patient’s status on follow-up.

Conclusion
Up to our best knowledge, the diagnosis of multiple biliary hamartomas has not been previously reported among newborns, making this report an extremely rare if not a unique observation.
Evaluation of diagnostic accuracy of serum calcium channel α2δ1 subunit in hepatocellular carcinoma-related cirrhosis
Authors: Ahmed Ahmed Elmetwally , Bayoumi Essam , Khayyal Ahmed E , Al Refaey Al Saied , Elessawy Hagar 
Published: September 2020

Abstract
Background
Hepatocellular carcinoma (HCC) is one of the commonest malignancies worldwide that carries a bad prognosis particularly in Egypt due to the high prevalence of HCV burden. Late diagnosis of HCC especially in cirrhosis suffering-liver is one of the causes that worsen HCC outcome. Identification of molecular pathways of HCC will open the gate for early diagnosis and effective management. Oscillation of calcium controlled by the α2δ1 subunit has been proposed as one of the mechanisms in tumor-initiating cell properties of HCC. In this study, we aim to evaluate the serum α2δ1 subunit level as a biological marker for HCC. A total of 90 participants were enrolled, 40 patients with HCC, 40 patients with cirrhosis, and 10 healthy volunteers; serum level of α2δ1 was assessed in all participants with ELISA

Results
The mean serum levels of α2δ1 were significantly higher in HCC group (19.53 ± 6.87 ng/dL) than cirrhotic (6.24 ± 2.64 ng/dL) and control groups (0.67 ± 0.48 ng/dL) (P = 0.001). There was no significance between α2δ1 and etiology of liver disease as viral (HCV, HBV) or non-viral (P = 0.14).

Conclusion
α2δ1 subunit may serve as a potential non-invasive marker with excellent sensitivity for diagnosis of HCC regardless of the etiology of liver disease.
Design and performance evaluation of a device for determination of specific heat capacity of thermal insulators
Authors: Etuk Sunday Edet , Robert Ubong Williams , Agbasi Okechukwu Ebuka 
Published: September 2020

Abstract
Background
Specific heat capacity is one of the prominent and deciding factors for selection of thermal insulation materials in thermal engineering. In recent times, there has been a great advancement in the manufacturing of a variety of advanced materials in order to meet the modern needs for thermal insulation. Unfortunately, certain drawbacks like high cost of procurement, low accuracy, and limited suitability are associated with the current device that can be used to probe the specific heat capacities of thermal insulators. Thus, there is need to devise a means of addressing the situation. A device, named SEUR’s apparatus, was designed, constructed, and used to determine specific heat capacities of some thermal insulators. Measurements were taken on 2 days, and KD2-pro meter was employed to obtain reference values.

Results
The percentage error values in the specific heat capacity of plastic (solid), asbestos, and paperboard were found to be 0.09%, 0.14%, and 0.13% for day 1 measurements and 0.08%, 0.17%, and 0.13% for day 2 measurements, respectively. Reproducibility values of 7.4%, 6.4%, and 8.2% were obtained for the plastic, asbestos and paperboard, respectively. These values fall within the range for unconditional acceptability of a test device.

Conclusion
Results obtained with the use of the SEUR’s apparatus are reliable, valid, and of high accuracy. The apparatus is cost-effective and very suitable for use in quick determination of specific heat capacity of porous, non-porous, homogeneous, or heterogeneous thermal insulating materials.
Effect of pipe-cooling system on thermal-mechanical behaviour of PC box bridge girders at hydration age
Authors: Song Chaojie , Zhang Gang , Wen Hao , Zhang Yongfei 
Published: September 2020

AbstractPrestressed concrete (PC) box bridge girders on the pier top is prone to generate thermal cracks due to large inner-outer temperature difference at hydration age. This paper presents an approach for investigating behaviour of PC box bridge girders at early age of curing. First, based on measured data from a typical PC box bridge girder, an inverse analysis method for adiabatic temperature rise function of concrete hydration heat is proposed using genetic algorithm and thermal analysis. Then, a thermo-hydro-mechanical coupling model is established, using the computer program ANSYS incorporating time-dependent wind speed and ambient temperature, to analyse thermal mechanical behaviour of PC box bridge girders considering pipe-cooling system. Subsequently, parametric studies are carried out to evaluate influence of cooling time, cooling water flow rate, cooling water temperature and cooling period on temperature and stress of PC box bridge girders during curing. Results from analysis show that the principal tensile stress generated in the vicinity of pipe increases more rapidly during cooling, while the temperature and principal tensile stress can be significantly reduced when cooling is terminated. Increasing cooling time, cooling water flow rate or decreasing cooling water temperature can reduce the highest temperature. However, unreasonable value of these cooling parameters will cause PC box bridge girders cracking due to excessive principal tensile stress around pipe. Both one-stage and two-stage cooling are effective measures to minimize the adverse effects of hydration heat in PC box bridge girders.
The impact of COVID-19 on trauma and orthopaedic patients requiring surgery during the peak of the pandemic
Authors: Mackay Nicola D , Wilding Christopher P , Langley Clare R , Young Jonathan 
Published: September 2020

Aims COVID-19 represents one of the greatest global healthcare challenges in a generation. Orthopaedic departments within the UK have shifted care to manage trauma in ways that minimize exposure to COVID-19. As the incidence of COVID-19 decreases, we explore the impact and risk factors of COVID-19 on patient outcomes within our department. Methods We retrospectively included all patients who underwent a trauma or urgent orthopaedic procedure from 23 March to 23 April 2020. Electronic records were reviewed for COVID-19 swab results and mortality, and patients were screened by telephone a minimum 14 days postoperatively for symptoms of COVID-19. Results A total of 214 patients had orthopaedic surgical procedures, with 166 included for analysis. Patients undergoing procedures under general or spinal anaesthesia had a higher risk of contracting perioperative COVID-19 compared to regional/local anaesthesia (p = 0.0058 and p = 0.0007, respectively). In all, 15 patients (9%) had a perioperative diagnosis of COVID-19, 14 of whom had fragility fractures; six died within 30 days of their procedure (40%, 30-day mortality). For proximal femoral fractures, our 30-day mortality was 18.2%, compared to 7% in 2019. Conclusion Based on our findings, patients undergoing procedures under regional or local anaesthesia have minimal risk of developing COVID-19 perioperatively. Those with multiple comorbidities and fragility fractures have a higher morbidity and mortality if they contract COVID-19 perioperatively; therefore, protective care pathways could go some way to mitigate the risk. Our 30-day mortality of proximal femoral fractures was 18.2% during the COVID-19 pandemic in comparison to the annual national average of 6.1% in 2018 and the University Hospital Coventry average of 7% for the same period in 2019, as reported in the National Hip Fracture Database. Patients undergoing procedures under general or spinal anaesthesia at the peak of the pandemic had a higher risk of contracting perioperative COVID-19 compared to regional block or local anaesthesia. We question whether young patients undergoing day-case procedures under regional block or local anaesthesia with minimal comorbidities require fourteen days self-isolation; instead, we advocate that compliance with personal protective equipment, a negative COVID-19 swab three days prior to surgery, and screening questionnaire may be sufficient. Cite this article: Bone Joint Open 2020;1-9:520–529.
Soliton mode-locked pulse generation with a bulk structured MXene Ti3AlC2 deposited onto a D-shaped fiber
Authors: Jafry A. A. A. , Rosol A. H. A. , Kasim N. , Muhammad A. R. , Rulaningtyas R. , Yasin M. , Harun S. W. 
Published: September 2020

We propose a bulk structured MXene,

T
i

3

A
l
C

2

deposited onto D-shaped fiber for soliton generation in an erbium-doped fiber laser (EDFL) cavity. Our saturable absorber (SA) device, based on MAX phase, was prepared by using stirring and ultrasonic vibration, which offer easier sample preparation compared with its 2D counterparts. By means of the polishing wheel technique, we fabricated a D-shaped fiber with a controlled polishing depth and incorporated the MAX phase

T
i

3

A
l
C

2

solution onto its polishing region. We obtained a mode-locked soliton pulse with the proposed MAX phase D-shaped (MAX-DS) SA in EDFL cavity. The pulse width, repetition rate, and central wavelength of the pulse train are 2.21 ps, 1.89 MHz, and 1557.63 nm, respectively. The polarization-insensitive EDFL cavity initiated a soliton operation with superior stability as the pump power tuned from 21 to 131 mW; further, the ML laser exhibits an average power of 15.3 mW, peak power of 3.8 kW, and pump efficiency of 12.5%. The MAX-DS SA incorporated inside the EDFL reveals efficient output performance, with a pulse energy of 8.14 nJ, the highest ever reported, to our best knowledge, among D-shaped fiber-based SA.
Armenia in Public Perceptions: The Case of Armenian Youth
Authors: Sargsyan Marine 
Published: September 2020

To download this paper, please click here
This article is informed by a trip to Armenia and fieldwork in the capital city of Yerevan. Based on findings and evidence from fifty interviews conducted in Armenia and the diaspora, in conjunction with mobility research analysis, this paper explores the changes Armenian society has undergone since the 1990s and how shifts in world politics reflect on the country's reconnection with its European bonds. The general question is whether the new generation of Armenians identifies itself more closely with Russian or European society. To arrive at an answer, the article elaborates on Armenia's relations with Russia and the European Union, revealing the key factors that influence the orientation of Armenian society in contemporary history. The article, therefore, aims to contribute to understandings of past and present Armenian society, and the factors that affect and determine their cultural identityand foreign policy choice, as well as their sense of belonging.
DIVULGAÇÃO DE DESPESAS COM P&D VERSUS INOVAÇÃO: UM ESTUDO NAS EMPRESAS LISTADAS NA B3
Authors: Adriano Nayana de Almeida , Medeiros Jislene Trindade , Vasconcelos Alessandra Carvalho de , De Luca Márcia Martins Mendes 
Published: September 2020

Investiga-se a influência da divulgação de despesas com pesquisa e desenvolvimento (P&D) no nível de inovação nas empresas brasileiras listadas na B3. Adicionalmente, foi analisada a influência da governança corporativa na divulgação de despesas com P&D e da divulgação das despesas da empresa com P&D no seu valor de mercado. A amostra reúne todas as 350 empresas listadas na B3 no período de 2015 a 2017. Comoproxypara inovação, utilizou-se o número de patentes registradas pela empresa, de acordo com o websiteEspacenet. Como proxypara governança corporativa, foi utilizada a participação da empresa em um dos níveis diferenciados de governança corporativa. E como proxypara valor de mercado, empregou-se o Q de Tobin. A partir do teste de Mann-Whitney, verificou-se que as empresas que divulgam despesas com P&D apresentam número de patentes e valor de mercado superiores aos das empresas que não as divulgam. Entretanto, os resultados da regressão revelaram que nas empresas da amostra a divulgação de despesas com P&D não influencia o nível de inovação. De acordo com o modelo de regressão logística, evidenciou-se que as empresas participantes dos níveis diferenciados de governança corporativa apresentam maior propensão a divulgar as despesas com P&D, comparativamente àquelas não listadas. Por meio da regressão pelo Método dos Mínimos Quadrados Ordinários, evidenciou-se que a divulgação de despesas com P&D não impacta o valor da firma. Esses resultados fornecem a reguladores, investidores e intermediários evidências de que nas empresas da amostra a divulgação de despesas com P&D não influencia o nível de inovação, e sugerem que a inovação pode advir não apenas de atividades internas de P&D, ou que as empresas não vêm divulgando essa informação com o nível de qualidade desejável.
Markers of Quality in Design Precedent
Authors: Gray Colin M. 
Published: September 2020

The generation and description of design precedent is at the core of design case scholarship. However, traditional standards of quality and rigor that are relevant for other types of design and scientific scholarship do not always apply equally to the generation of design cases. In this paper, I describe the nature of design precedent and the standards for evaluating precedent artifacts in a way that foregrounds access of the reader to aspects of design complexity in the design work being described. Standards of quality point towards the appropriateness and potential contribution of the precedent material to design knowledge, across the following dimensions: interest to other designers; rich representation of the design; articulation of transparency and failure; accessibility of style; and acknowledgement of complexity and scope.
Growth of NIH 3T3 Fibroblast Cells Exposed to Carbonated Hydroxyapatite with Incorporated Propolis
Authors: Wijayanti Puspaneka , Lastianny Sri Pramestri , Suryono Suryono 
Published: September 2020

Carbonated hydroxyapatite is frequently used as bone graft material in dentistry. It is highly biocompatible, has osteoconductive properties, and functions as a drug delivery system. Propolis is a natural product from bees that has antibacterial and anti-inflammatory effects and is capable of accelerating wound healing. Incorporating propolis into carbonated hydroxyapatite was expected to enhance the wound-healing process by stimulating fibroblast growth and regenerating alveolar bone in the treatment of periodontitis. The aim of this study was to evaluate the effect of carbonated hydroxyapatite with incorporated propolis on the viability of NIH 3T3 fibroblast cells. This study used three treatment groups [carbonated hydroxyapatite with various concentrations of incorporated propolis (5%, 7.5%, and 10%)] and one control group (carbonated hydroxyapatite with no propolis). An MTT assay was carried out to assess cell viability, and absorbance readings were performed by using an ELISA reader. The data were analyzed by using one-way ANOVA. The results showed significant differences between all groups, and carbonated hydroxyapatite with 10% incorporated propolis has the highest cell viability level of all groups, while the control group has the lowest cell viability. In conclusion, adding propolis to carbonated hydroxyapatite could increase the growth of NIH 3T3 fibroblast cells. Keywords: Carbonated hydroxyapatite, Propolis, NIH 3T3 fibroblast cells, MTT assay
Peak to average power ratio (PAPR) reduction in filter bank multicarrier (FBMC) and orthogonal frequency division multicarrier (OFDM) based visible light communication systems
Authors: Abdalla Haitham F. , Hassan Emad S. , Dessouky Moawad I. 
Published: September 2020

Abstract
Filter bank multicarrier (FBMC) is a new waveform candidate in the visible light communication system (VLC). FBMC is a particular sort of multi-carrier modulation that can be viewed as an option in contrast to orthogonal frequency division multicarrier (OFDM) with CP (cyclic prefix). The point is to defeat some innate disadvantages of the normally utilized optical OFDM schemes. The principles of key transceiver should be intended to suit the necessities of the channel of IM/DD. Peak to average power ratio (PAPR) and bit error rate (BER) performance of FBMC based VLC are discussed and compared with scheme of optical OFDM. FBMC based VLC system with clipping technique has the lowest PAPR and good BER performance compared to conventional system in this paper. This paper recommends that FBMC based VLC has an incredible potential for optical wireless communication systems with high-speed. Matlab program simulations confirm the analysis. The results may shed light into potential research line on FBMC based VLC systems.
A systolic inequality with remainder in the real projective plane
Authors: Katz Mikhail G. , Nowik Tahl 
Published: September 2020

Abstract
The first paper in systolic geometry was published by Loewner’s student P. M. Pu over half a century ago. Pu proved an inequality relating the systole and the area of an arbitrary metric in the real projective plane. We prove a stronger version of Pu’s systolic inequality with a remainder term.
What's that smell? New directions for materials studies
Authors: Newstead Sarah , Casimiro Tânia Manuel 
Published: September 2020

Abstract‘Smellscapes’ have become an increasingly popular concept in recent years. Here, the authors argue for a new direction in sensorial archaeology by focusing on the ‘smell of things’ or the potential information held in the odours of archaeological objects. They offer a case study using early modern earthenware ceramics from Portugal—renowned for the distinctive smell and taste imparted to their contents—to explore the possibility of developing standardised analytical techniques and vocabularies that would allow archaeologists to describe the odours associated with artefacts.
Corrosion Behavior of Steel Reinforcement in Chloride Admixed Self-Compacting Concrete Subjected to Different Exposure Conditions
Authors: Jain Smrati , Pradhan Bulu 
Published: September 2020

Abstract
Chloride-induced corrosion is one of the most significant durability problems faced by reinforced concrete structures. In this study, chloride-induced corrosion performance of steel reinforcement was evaluated in self-compacting concrete (SCC) in the presence of internal chloride. Two types of exposure condition were adopted, i.e., air curing (laboratory drying) and water curing with alternate wetting-drying cycles, till an exposure duration of 450 days. After 450 days, only water curing specimens were further exposed to 5 % sodium chloride (NaCl) solution with alternate wetting-drying cycles for another 240 days. The corrosion behavior of steel reinforcement was monitored through half-cell potential and linear polarization resistance measurements. The obtained results indicated that there is no systematic variation in corrosion potential between two exposure conditions. SCC specimens exposed to normal water curing with alternate wetting-drying cycles showed lower corrosion current density than those exposed to air curing. Ordinary portland cement (OPC)–based SCC showed better corrosion performance than portland pozzolana cement and OPC + 20 % fly ash–based SCC during an early exposure period in the presence of internal chloride; however, the opposite variation was observed during later ages after exposure to 5 % NaCl solution.