bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ventromedial prefrontal value signals and functional connectivity during decision-making in suicidal behavior and impulsivity
Authors: Brown Vanessa M. , Wilson Jonathan , Hallquist Michael N. , Szanto Katalin , Dombrovski Alexandre Y. 
Published: February 2020

AbstractSuicide is linked to impaired value-based decision-making and impulsivity, but whether these risk factors share neural underpinnings is unclear. Disrupted ventromedial prefrontal cortex (vmPFC) value signals may underlie this behavioral phenotype. We investigated vmPFC value signals, vmPFC–frontoparietal connectivity, and the impact of impulsivity during decision-making in depressed individuals with and without suicidal behavior. Middle-aged and older adults (n = 116; 35 with a history of suicide attempts, 25 with ideation only, 25 depressed controls with no ideation, and 31 nonpsychiatric controls) completed a decision-making task with drifting reward probabilities during fMRI. Values of choices, estimated by a reinforcement learning model, were regressed against BOLD signal. VmPFC value activation was compared between groups. Moderating effects of impulsivity on vmPFC–frontoparietal connectivity were assessed in nonpsychiatric controls and compared among patient groups. VmPFC value responses in participants with a history of suicide attempts were reduced relative to nonpsychiatric controls (p < 0.05). In nonpsychiatric controls, vmPFC–frontoparietal connectivity was negatively moderated by impulsivity (pFWE corrected < 0.05). This effect was preserved in comparison patient groups but abolished in suicide attempters (p < 0.001). This change in neural connectivity patterns also affected behavior: people with a history of suicide attempts showed a disrupted effect of vmPFC–frontoparietal connectivity, impulsivity, and reinforcement on choice quality (p < 0.001). These effects were specific to vmPFC and not to striatum. In summary, findings from this study largely support disrupted vmPFC value signals in suicidal behavior. In addition, it uncovers an altered pattern of vmPFC–frontoparietal connectivity in impulsive people with suicidal behavior, which may underlie disrupted choice processes in a suicidal crisis.
Quasi‐elliptic bandpass filtering power divider with ultra‐wide stopband
Authors: Wu Chaochao , Xiao Fei , Wang Huadong , Chen Yang , Sun Yuancheng 
Published: February 2020

In this Letter, a novel filtering power divider with second‐order quasi‐elliptic bandpass response is proposed, which has two transmission zeros near to the passband for sharp frequency selectivity. In addition, it is featured by ultra‐wide stopband owing to specific topology. For demonstration, a filtering power divider example operating at 3.1 GHz is designed, fabricated and measured. Its 3 dB fractional bandwidth is about 11.9%, and the in‐band isolation between two output ports exceeds 20 dB. Specifically, more than 21 dB out‐of‐band suppression is achieved from the upper side of the passband to 4.8f0, and more than 12 dB suppression is achieved to at least 20f0. The measurement agrees well with the simulation.
Devastating Outcomes of Traditional Enemas: Unusual Indications for Well-Known Operations
Authors: Mshumpela Cleopatra , Brisighelli Giulia , Westgarth-Taylor Chris 
Published: February 2020

Abstract
Background Despite serious health risks having been described, traditional enemas are still often used in African traditional medicine. We aim to report two cases of complications secondary to traditional enemas, to illustrate how severe the injuries can be, and to describe the use of a Swenson type endoanal pull-through and a posterior sagittal anorectoplasty (PSARP) as surgical options.
Case Description A 2-year-old girl presented with a necrotic rectum after a traditional enema administration. At admission, she required a laparotomy, colostomy fashioning, and extensive debridement of her rectum and perineum. She subsequently had a pull-through of the descending colon using a PSARP approach, a covering loop ileostomy, and a Malone Antegrade Continence Enema. The ileostomy was reversed at the age of 3 years of age and she is now clean with rectal washouts.The second case was a one- and a half-year-old boy with full-thickness burns to the perineum and rectum secondary to a hot-water enema. A colostomy was initially brought out and pulled through 7 months post the initial surgery. He is now growing well and is fully continent to stools.
Conclusions The potential complications associated with the practice of administering at-home enemas can be quite devastating. A transanal pull-through and a PSARP have been proven to be successful techniques in patients who have suffered rectal burns due to traditional enemas.
Primary Umbilical Endometriosis in an Adolescent Girl: Unsuspected Pathology
Authors: Nellihela Leel , Al-Adnani Mudher , Kufeji Dorothy 
Published: February 2020

AbstractEndometriosis affects 7 to 10% of women of reproductive age. Primary umbilical endometriosis (PUE) is even rarer with unclear pathogenesis. We report a case of PUE possibly the youngest patient reported in the literature.A 16-year-old girl of African origin presented with painful umbilical lump for 2 to 3 months duration with background history of precocious puberty, cyclical vomiting, and menorrhagia. Clinical examination showed dark-colored, tender, irreducible umbilical lump. A provisional diagnosis of incarcerated umbilical hernia was made. Abdominal X-ray showed no features of intestinal obstruction. Ultrasound scan of the abdomen showed lump containing heterogeneous echogenic material measuring 2.0 × 1.5cm within the umbilicus with no visible bowel loops or peristalsis. This was reported as consistent with an umbilical hernia with narrow neck possibly containing mesentery or intra-abdominal fat. The patient underwent urgent exploration of umbilicus under general anesthetic. At operation, a dark-colored, firm mass was excised and sent for histology. The underlying fascia and peritoneum were repaired.Histological examination confirmed the excised tissue was endometriosis. Follow-up continues in the endometriosis clinic.Umbilical endometriosis should be considered in differential diagnoses of painful umbilical lesion in adolescent girls and women of reproductive age. Complete excision and histology are highly recommended for obtaining a definitive diagnosis, to exclude malignancy and to prevent recurrence.
Extracorporeal Membrane Oxygenation after Heart Transplantation: Impact of Type of Cannulation
Authors: Mehdiani Arash , Immohr Moritz Benjamin , Boettger Charlotte , Dalyanoglu Hannan , Scheiber Daniel , Westenfeld Ralf , Aubin Hug , Akhyari Payam , Saeed Diyar , Lichtenberg Artur , Boeken Udo 
Published: February 2020

Abstract
Background Primary graft dysfunction (PGD) is a common cause of early death after heart transplantation (htx). The use of extracorporeal life support (ECLS) after htx has increased during the last years. It is still discussed controversially whether peripheral cannulation is favorable compared to central cannulation. We aimed to compare both cannulation techniques.
Methods Ninety patients underwent htx in our department between 2010 and 2017. Twenty-five patients were treated with ECLS due to PGD (10 central extracorporeal membrane oxygenator [cECMO] and 15 peripheral extracorporeal membrane oxygenator [pECMO] cannulation). Pre- and intraoperative parameters were comparable between both groups.
Results Thirty-day mortality was comparable between the ECLS-groups (cECMO: 30%; pECMO: 40%, p = 0.691). Survival at 1 year (n = 18) was 40 and 30.8% for cECMO and pECMO, respectively. The incidence of postoperative renal failure, stroke, limb ischemia, and infection was comparable between both groups. We also did not find significant differences in duration of mechanical ventilation, intensive care unit stay, or in-hospital stay. The incidence of bleeding complications was also similar (cECMO: 60%; pECMO: 67%). Potential differences in support duration in pECMO group (10.4 ± 9.3 vs. 5.7 ± 4.7 days, p = 0.110) did not reach statistical significance.
Conclusions In patients supported for PGD, peripheral and central cannulation strategies are safe and feasible for prolonged venoarterial ECMO support. There was no increase in bleeding after central implantation. With regard to the potential complications of a pECMO, we think that aortic cannulation with tunneling of the cannula and closure of the chest could be a good option in patients with PGD after htx.
Individuals’ activity space in Seri Iskandar Malaysia
Authors: Khalif M A Z , Dharmowijoyo D B E 
Published: February 2020

Abstract
This study examines the nature of the day-to-day variability of individual activity space in Seri Iskandar Malaysia using simple regression analysis. The results show that individuals’ time allocation to undertake in-home and out-of-home mandatory activities, household income, access to motorised mode, commute distance and perceived accessibility from home to some basic amenities significantly associate with the spread of individuals’ out-of-home activity locations. However, time spent for performing in-home and out-of-home activities, number of trips, and commute distance associate with how far individuals’ out-of-home activity locations from their home is. Longer time-use to undertake in-home and out-of-home activities negatively correlate with the spread of out-of-home activity locations, whereas commitments to undertake out-of-home discretionary activities will be conducted near a home base location. When someone is from richer household, he/she will visit out-of-home activity locations farther from his/her home and more spread out. When someone resides within an area farther from government office areas, he/she will have more spread out activity locations.
The flatness levels of flexible road based on roadroid software in Perintis Kemerdekaan Street Makassar
Authors: Lukman M , Halim H , Saing Z 
Published: February 2020

Abstract
This study aims to evaluate working road pavement conditions, the road pavement conditions value based on the International Roughness Index (IRI) method which is used as a basis for knowing the type of road maintenance handling type. For taking IRI, a vehicle that has good performance is used, while IRI value recording uses Roadroid software that has been installed on an Android-based mobile. The data results from this study indicate that the Perintis Kemerdekaan Road produces IRI values of 2.607 and 2.408 for each direction. From this value, it is converted in road stability level which shows that the road is in a steady category so that in general this segment for handling requires regular maintenance periodically to achieve maintaining the service level.
Assessment of tsunami risk to offshore platforms in Indonesia archipelago
Authors: Baeda A Y , Carayannis G P 
Published: February 2020

Abstract
Earthquakes are unpredictable natural disasters that need to be taken into serious consideration in the design criteria of offshore platforms, particularly in regions of high seismicity. The Indonesia Archipelago is characterized by extensive zones of seismic activity where large earthquakes can be extremely dangerous to the safety and reliable performance of offshore platforms. Tsunamis generated by the larger earthquakes in the region present an additional extreme danger to offshore oil production and need to be assessed and considered in the design criteria of offshore platforms.
Classification of air pollutants API Inter-Correlation using decision tree algorithms
Authors: Althuwaynee O F , Balogun A L , Aydda A , Gumbo T 
Published: February 2020

Abstract
The automated classification of ambient air pollutants is an important task in air pollution hazards assessment and life quality research. Faced with various classification algorithms, environmental scientists should select the most appropriate method according to their requirements and data availability. This study describes several types of Decision Tree algorithms for finding the inter-correlation between dominant air pollution index (API) for PM10 percentile values and four other air pollutants such as Sulphur Dioxide (SO2), Ozone (O3), Nitrogen Dioxide (NO2) and Carbon monoxide (CO), in addition to two other meteorological parameters: ambient temperature and humidity, using 22 months records of active air monitoring station in Penang island (northern Malaysia). Classification analysis for the PM10 API was then performed using non-linear Decision Trees within the R programming environment including: Boosted C5.0, Random Forest, PART, and Naive Bayes tree (NBtree). This is in addition to rpart and tree algorithms, which were used to plot the classification trees. The classification performance of the methods is presented and the best classifier in terms of accuracy and processing time was recommended. In R statistical environment, the process of classification by decision tree methods and the classification rules were easy to obtain, while geographic information systems (GIS) software’ was used for mapping the study area. Furthermore, the results are clear and easy to understand for environmental and geospatial scientists and relevant agencies, which will facilitate the mitigation of air pollution related disasters in the affected communities.
The growth of Metropolitan Bandung Raya (MBR) and the increase of urban housing matters
Authors: Vitriana A 
Published: February 2020

Abstract
The urban growth of MBR has rapidly occurred. The emergence of MBR’s urban settlements has started in Bandung city as the main urban center and it has spread out adjacent through some administrative region. These center urban growth has stimulated the development of urban housing in peri-urban areas forming a large-scale urban settlement and eventually bring the emergence of housing problems. This research specifically aims to explore the housing matters in the context of residential elements. The study was conducted using a quantitative method and a descriptive approach to show the trend of urban growth and the increasing problems of housing and basic infrastructure. The discussion of housing matters addressed to the physical condition of housing and the availability of basic infrastructure. The results show that the main problem of MBR housing is generally in the issue of increased density and the provision of basic infrastructure. Another problem that characterizes as the urban housing problem is the issue of the space adequacy of building, while the main issue in the regencies housing is the un-durable physical condition of the building.
Opportunity applying response surface methodology (RSM) for optimization of performing butonic asphalt mixture using plastic waste modifier: a preliminary study
Authors: Lapian F E P , Ramli M I , Pasra M , Arsyad A 
Published: February 2020

Abstract
Non-biodegradable waste plastic made of polyethylene terephthalate (PET) based drinking bottles waste was used as additive in asphalt concrete mixture production. This paper used modified Buton asphalt (MBA) as base binder. The asphalt concrrete mixtures containing 0%, 0.5%, 1.0%, 1.5%, 2.0% and 2.5% of waste PET were prepared with one source of aggregates, filler and stone dust. The effect of waste PET and MBA to asphalt concrete mixture on volumetric properties namely specific gravity, void in mix (VIM), void mineral aggregate (VMA) and void filled bitumen (VFB) is studied. The results of volumetric evaluation indicated that waste PET and MBA could be incorporated in asphalt concrete mixture. After calculating specific gravity, VIM, VMA and VFB, a table was designed as a preliminary study based on Response Surface Methodology (RSM) that can be used as a basis of modelling for continuous improvement of asphalt concrete prepared with waste PET and MBA.
Compressive strength of laterite stone mixed concrete
Authors: Marewangeng A , Tjaronge M W , Djamaluddin A R , Aly S H 
Published: February 2020

Abstract
Concrete is one of the most durable construction material and cement is one of the most energy intensive structural materials in concrete. This research is conducted to research of the suitability of tap water, river sand and laterite stone which is available abundantly surround the Berau district of Indonesia with Portland composite cement (PCC) and crushed laterite stone to produce concrete. Test result exhibited that fresh concrete had proper workability and all hardened specimens appeared a good compaction result. This paper purposed to utilized tap water, river sand, laterite stone and Portland composite cement to produce the high performance concrete to eliminate the main problems of stone shortage and fine aggregate in the low land areas and the Berau district of Indonesia. Infrastructure development can be sustained through the effective use of available local materials surround the Berau district of Indonesia. The evaluation result on the workability of fresh concrete and strength development of hardened concrete were discussed.
Correlation of concrete by using small core diameter
Authors: Rakhman Y , Parung H , Irmawaty R 
Published: February 2020

Abstract
One of the causes of limited sampling on concrete structures is that there is reinforcement in the concrete structure so that when using a large diameter drill core, can damage the concrete structure. Therefore, a study of small diameter concrete was conducted to predict the compressive strength of cylindrical concrete. Test specimens in the form of concrete cylinders with dimensions 10 cm x 20 cm, two concrete plates with dimension 45cm x 45cm x 13cm, and four concrete beams with dimensions 70 cm x 30 cm x 15 cm by taking concrete using a drill core diameter of 2″ and 1″. Two concrete slabs and two concrete beams with concrete strength (f′c) 20 MPa (MSA 20mm and 10mm) while two concrete slabs and two concrete beams with concrete strength (f′c) 30 MPA (MSA 20mm and 10mm). Types of tests carried out include testing the compressive strength of concrete, core concrete normality test, modulus of elasticity and compressive strength of the core concrete. From test results, can be concluded that the compressive strength of core concrete with sample in the direction of casting for a diameter of 2 inches and concrete strength of 20 MPa (MSA 20 mm and 10 mm) meets the requirements and can be recommended with number samples of 25, whereas for diameter 1″ the number of samples must be added.
Effect of portland composite cement and buton granular asphalt on indirect tensile strength of emulsified asphalt cold mix using limestone aggregate
Authors: One L , Tjaronge M W , Irmawaty R , Hustim M 
Published: February 2020

Abstract
The research is laboratory experimental purposing to analyze effects of Portland Composite Cement (PCC) and Buton Granular Asphalt (BGA) on Indirect Tensile Strength (ITS) of Emulsified Asphalt Cold Mix (EACM) using limestone aggregate. The EACM is designed as Asphalt Concrete-Wearing Course (AC-WC). The material of EACM contains emulsified asphalt CSS-1h, BGA 50/30, PCC, and Limestone Aggregate. The specimen consisted of Bitumen 8% of total weight, BGA 8% of total weight, and PCC 0%, 1.5%, and 2% of total weight. The specimen is classified into 5 groups, namely P0B0, P0B8, P1.5B8, P2B0, and P2B8. PCC is used as partial substitutions of limestones filler. BGA is used as partial substitutions of bitumen emulsion and partially substitutions of filler or and fine aggregate. The specimens of EACM having 101 mm in diameter and 63.5 mm in height ware tested by UTM apparatus with Horizontal Linear Variable Displacement Transducer (LVDT) 10 mm and vertical LVDT 25 mm according to ASTM D 6931 – 12. The result of this study concludes that the use of PCC and BGA increased ITS of EACM. Both P1.5B8 and P2B8 Specimens met maximal performance, where Indirect Tensile Strength of them 2.8 times ITS of P0B0.
Prediction of long-term volumetric parameters of asphalt concrete binder course mixture using artificial ageing test
Authors: Tumpu M , Tjaronge M W , Djamaluddin A R 
Published: February 2020

Abstract
Ageing of asphalt mixture occurs during the production and construction, and it will continue until the end of the pavement lifetime. Modified Butonic bitumen consists of petroleum bitumen and extracted bitumen from natural asphalt was used as a binding material to produce asphalt concrete binder course (AC-BC). This study purposed to predict the effect of long-term ageing on volumetric parameters of asphalt concrete binder course mixture using an artificial laboratory test. Three different treatments were conducted, the first treatment without the ageing process as the control specimen, the second and third treatments used oven heating as the artificial ageing process for 2 and 4 days 85°C. After ageing process completion, the volumetric parameters were determined by the value of the void in the mixture (VIM), void of mineral aggregates (VMA) and the void filled with asphalt binder (VFB).
Vibration optimization of laminated composite plates using genetic algorithm with various discrete fiber angles
Authors: Innami M , Narita Y , Sasaki K , Honda S 
Published: February 2020

Abstract
The mechanical characteristics of a laminated plate can be tailored by adjusting the fiber orientation angle of each orthotropic lamina. To find the fiber orientation angle of each lamina that maximizes the fundamental frequency, previous works analyses using various optimization algorithms have been performed so far. However, the solution space becomes significantly larger as the number of combinations in orientation angles increases. Thus the optimization process takes much more time. This paper sets up the orientation angles to discrete design variables, such as 15°, 30°, etc. Genetic algorithm is employed to find the optimal solutions. The CFRP rectangular composite plates with 8, 12 and 16 layers are considered as an example using the Ritz method for finding the eigenvalues. Two sets of classical boundary conditions are used as edge conditions. It was revealed that the fundamental frequency makes about 5% difference from the optimal value if it is in 30° steps and about 24% in 90° steps.
Compressive strength of lightweight geocomposit soil-eps stabilized with palm oil-tea fly ash
Authors: Rauf I , Samang L , Harianto T , Arsyad A 
Published: February 2020

Abstract
This laboratory experiment intended to develop lightweight embankment material by using fly ash as a stabilizer agent on soft soil and the substitution of soil with expanded polystyrenes (EPS). The palm oil-tea fly ash (POTFA) derived from combustion of palm shells and tea in manufacture process. In order to analyse the performance of this geocomposite material, compressive strength test were applied to several composition and treatment on each sample. The samples were prepared with composition of binding agent for 5%,10%,15% and 20% based on dry weight of the soil, meanwhile the EPS composition are 10% and 20% based on sample’s volume. The results showed that the substitution of EPS will reduce the unit weight of geocomposite material until 30% compared to untreated soil. The compressive strength will decrease slightly with the augmentation of bonding agent content on the samples as well as the addition of EPS, however that results are still higher than normal soil.