bluuebunny/crossref_metadata_2025_split huggingface dataset:
Usefulness of measuring bone density of
mandibular condyle in patients at risk of osteoporosis: A cone beam computed tomography study
Authors: Alkhader Mustafa , Aldawoodyeh Ammar , Abdo Nour 
Published: July 2018

ABSTRACT
Objective: Using cone beam computed tomography (CBCT) images, the aim of the study was to evaluate the usefulness of measuring bone density of mandibular condyle (BDMC) in patients at risk of osteoporosis. Materials and Methods: Two hundred and four mandibular condyles (46 condyles from males and 158 condyles from females) were examined by CBCT. Using inVivo software (Anatomage, San Jose, Calif), BDMC and mental index (MI) were measured by two observers and correlated using Pearson's correlation coefficients. Patients were divided into high risk and low risk of osteoporosis using 3.1 mm of MI as a cutoff value, and the mean value of BDMC was compared and correlated using independent samples t-test and regression analysis. Receiver-operating characteristic (ROC) curve analyses were also used to examine the predictive power of BDMC. Results: The mean value of BDMC was moderately correlated with MI (r = 0.38), and in female patients at low risk of osteoporosis, the mean value of BDMC was significantly higher than in patients at high risk of osteoporosis. In multivariate linear regression analysis, being at risk of osteoporosis is significantly affected by BDMC, age, and gender. ROC analysis showed that the mean value of BDMC had a moderate predictive power for predicting patients at risk of osteoporosis (area under the curve = 0.621 for females and 0.649 for males). Conclusions: Measuring BDMC is considered useful in predicting patients at risk of osteoporosis.
Micro-computed tomography evaluation of microleakage of Class II composite restorations: An in vitro study
Authors: Zavattini Angelo , Mancini Manuele , Higginson James , Foschi Federico , Pasquantonio Guido , Mangani Francesco 
Published: July 2018

ABSTRACT
Objective: The aim of this study is to investigate the microleakage attained with three resin-based material used to restore deep Class II cavities. A null hypothesis was chosen: there is no difference in microleakage among the tested materials. Materials and Methods: A total of 30 Class II cavities were prepared in freshly extracted molars with the proximal mesial and distal margins located, respectively, 1.5 mm apically and 1.5 mm coronally to the cementum-enamel junction. Restorations were completed using a three-step enamel-dentin adhesive system “Etch and Rinse,” margins were relocated using a micro-hybrid, preheated, or flowable composite and restorations were then completed using a conventional composite. All samples were coated with nail varnish with the exception of an area along the margins and apex was sealed using epoxide cement and then thermocycled (30-s dwell time, 5°C/55°C, 1000 cycles). A 50% ammoniac AgNO3 solution was used as tracer according to Tay's protocol. The microleakage analysis was performed using a microtomography system Sky-scan 1072 (SKYSCAN, Kartuizersweg 3B 2550, Konitch, Belgium). Results: The mean microleakage of all the tested materials showed greater leakage in the cementum margins; flowable composite exhibit greater leakage among the groups. Significant differences (P < 5%) within groups in both enamel and dentin margins were present. None of the tested materials eliminated marginal microleakage. Preheated composite showed significantly lesser microleakage. Conclusion: Tested materials showed statistical differences in microleakage; thus, the null hypothesis has been rejected. Within the limitations of the present experimental procedure, it can be concluded that flowable resin composite should be avoided at the dentin/cementum margin.
A potential therapy of human umbilical cord mesenchymal stem cells for bone regeneration on osteoporotic mandibular bone
Authors: Hendrijantini Nike , Kusumaningsih Tuti , Rostiny Rostiny , Mulawardhana Pungky , Danudiningrat Coen Pramono , Rantam Fedik Abdul 
Published: July 2018

ABSTRACTObjective: The aim of this study is to prove that human umbilical cord mesenchymal stem cell (hUCMSC) therapy on mandibular osteoporotic model is able to increase transforming growth factor-beta-1 (TGF)-β1 expression, Runx2, and osteoblasts. Materials and Methods: This research is true experimental posttest control group design. Thirty female Wistar rats were divided into 6 groups randomly, which consisted of sham surgery for control (T1), ovariectomy as osteoporotic group (T2), osteoporotic group injected with gelatine for 4 weeks (T3), 8 weeks (T4) injected with hUCMSC-gelatine for 4 weeks (T5) and 8 weeks (T6). All mice were presented for immunohistochemistry examination for TGF-β1, Runx2, and histology for osteoblasts. Results: The lowest level of osteoblast was osteoporotic group injected with gelatine in 4 weeks compared to other groups. There were increases of TGF-β1, Runx2, and osteoblasts from osteoporotic group compared to osteoporotic post-hUCMSC-gelatine injection group. Conclusion: The hUCMSC has a high osteogenic effect and increases the osteoporotic mandibular bone regeneration on the animal model that is showed by the increase of the level of TGF-β1, Runx2, and osteoblasts.
Effects of resterilization and storage time on sterility of paper/plastic pouches
Authors: Puangsa-Ard Yada , Thaweboon Sroisiri , Jantaratnotai Nattinee , Pachimsawat Praewpat 
Published: July 2018

ABSTRACT
Objectives: Paper/plastic pouches are widely used packaging materials for autoclaving medical and dental equipment. Although these pouches are recommended for single use, they are generally reused in Thailand. This study aimed to determine the ability of paper/plastic pouches to maintain sterility after multiple sterilization processes and stored in a closed environment for up to 6 months. Materials and Methods: A total of 6720 paper/plastic pouches were divided into four experimental groups: new pouches, 1 time, 3 times, and 5 times resterilized pouches. A piece of filter paper was placed inside each pouch, and the pouch was sealed, sterilized, and stored for up to 6 months. At the end of each storage period, the pouch was opened, and the filter paper was transferred to culture broth for microbial cultivation to determine sterility. Negative and positive controls were also used to validate the procedures. Results: All filter papers in the experimental groups, as well as the negative control group, remained sterile for up to 6 months of storage in a closed environment. On the contrary, all filter papers in the positive control group showed microbial contamination. Conclusions: In a closed storage condition, the paper/plastic pouches that passed multiple sterilization processes (up to 5 times resterilization) still maintained good barrier efficacy and remained sterile for up to 6 months.
Color changes of esthetic elastomeric ligatures evaluated with the Commission Internationale d'Éclairage color system
Authors: Silva Vanessa Dias da , Dias Caroline , Osório Leandro Berni , Matje Paulo Ricardo Baccarin , Menezes Luciane Macedo de , Lima Eduardo Martinelli Santayana de 
Published: July 2018

ABSTRACT
Objective: The aim of this study was to assess and compare color changes in esthetic elastomeric ligatures after 30 days in situ using a spectrophotometer and the Commission Internationale d'Éclairage (CIE) color system. Materials and Methods: The sample comprised elastomeric ligatures of four color groups (n = 42): blue pearl (BP); colorless; white pearl (WP); and pearl. Four samples from each group were allocated in for quadrants of seven patients in a split-mouth model. Color measurements were performed with a spectrophotometer in the elastomeric ligatures as received (T0) and after 30 days in situ (T1). Variables L*, a*, and b* were compared between times (T1–T0) with Wilcoxon paired ranks; color changes were compared between groups with Kruskal–Wallis test; Dunn's test was used for multiple comparisons. Spearman's correlation was applied between CIELAB and CIEDE2000 calculations. Results: All groups showed color changes (T1–T0) in a* and b*, but only the Group BP had a change in L* (P < 0.01). Group C showed the greatest lightness decrease (ΔL = −2.49 ± 0.47) (P < 0.05), the smallest yellowing (Δb = 3.17 ± 0.88) (P < 0.05), and the smallest total color change (ΔE2000 = 3.19 ± 0.85), which had no statistical difference from Group WP (ΔE2000 = 3.36 ± 0.53). Correlation between ΔEab and ΔE2000 was moderate (r = 0.59; P < 0.01). Conclusions: Esthetic elastomeric ligatures became yellowish after 30 days in situ, and there were color differences between them.
Links between annual surface temperature variation and land cover heterogeneity for a boreal forest as characterized by continuous, fibre-optic DTS monitoring
Authors: Saito Kazuyuki , Iwahana Go , Ikawa Hiroki , Nagano Hirohiko , Busey Robert C. 
Published: July 2018

Abstract. A fibre-optic DTS (distributed temperature sensing) system
using Raman-scattering optical time domain reflectometry was deployed to
monitor a boreal forest research site in the interior of Alaska. Surface
temperatures range between −40 ∘C in winter and 30 ∘C in
summer at this site. In parallel experiments, a fibre-optic cable sensor
system (multi-mode, GI50/125, dual core; 3.4 mm), monitored at
high resolution, (0.5 m intervals at every 30 min) ground surface
temperatures across the landscape. In addition, a high-resolution vertical
profile was acquired at one-metre height above the upper subsurface. The total
cable ran 2.7 km with about 2.0 km monitoring a horizontal surface path.
Sections of the cable sensor were deployed in vertical coil configurations
(1.2 m high) to measure temperature profiles from the ground up at 5 mm
intervals. Measurements were made continuously over a 2-year interval from
October 2012 to October 2014. Vegetation at the site (Poker Flat Research
Range) consists primarily of black spruce underlain by permafrost. Land cover
types within the study area were classified into six descriptive categories:
relict thermokarst lake, open moss, shrub, deciduous forest, sparse conifer
forest, and dense conifer forest. The horizontal temperature data exhibited
spatial and temporal changes within the observed diurnal and seasonal
variations. Differences in snow pack evolution and insulation effects
co-varied with the land cover types. The apparatus used to monitor vertical
temperature profiles generated high-resolution (ca. 5 mm) data for air
column, snow cover, and ground surface. This research also identified several
technical challenges in deploying and maintaining a DTS system under
subarctic environments.
Transport, properties, and life cycles of mesoscale eddies in the eastern tropical South Pacific
Authors: Czeschel Rena , Schütte Florian , Weller Robert A. , Stramma Lothar 
Published: July 2018

Abstract. The influence of mesoscale eddies on the flow field and the water masses, especially the
oxygen distribution of the eastern tropical South Pacific, is investigated
from a mooring, float, and satellite data set. Two anticyclonic (ACE1/2), one
mode-water (MWE), and one cyclonic eddy (CE) are identified and followed in
detail with satellite data on their westward transition with velocities of
3.2 to 6.0 cm s−1 from their generation
region, the shelf of the Peruvian and Chilean upwelling regime, across the
Stratus Ocean Reference Station (ORS; ∼20∘ S, 85∘ W)
to their decaying region far west in the oligotrophic open ocean. The ORS is
located in the transition zone between the oxygen minimum zone and the well
oxygenated South Pacific subtropical gyre. Velocity, hydrographic, and oxygen
measurements at the mooring show the impact of eddies on the weak flow region
of the eastern tropical South Pacific. Strong anomalies are related to the
passage of eddies and are not associated with a seasonal signal in the open
ocean. The mass transport of the four observed eddies across 85∘ W
is between 1.1 and 1.8 Sv. The eddy type-dependent available heat, salt, and
oxygen anomalies are 8.1×1018 J (ACE2), 1.0×1018 J
(MWE), and -8.9×1018 J (CE) for heat; 25.2×1010 kg
(ACE2), -3.1×1010 kg (MWE), and -41.5×1010 kg (CE) for
salt; and -3.6×1016 µmol (ACE2),
-3.5×1016 µmol (MWE), and
-6.5×1016 µmol (CE) for oxygen showing a strong imbalance
between anticyclones and cyclones for salt transports probably due to
seasonal variability in water mass properties in the formation region of the
eddies. Heat, salt, and oxygen fluxes out of the coastal region across the
ORS region in the oligotrophic open South Pacific are estimated based on
these eddy anomalies and on eddy statistics (gained out of 23 years of
satellite data). Furthermore, four profiling floats were trapped in the ACE2
during its westward propagation between the formation region and the open
ocean, which allows for conclusions on lateral mixing of water mass
properties with time between the core of the eddy and the surrounding water.
The strongest lateral mixing was found between the seasonal thermocline and
the eddy core during the first half of the eddy lifetime.
La memoria entre cenizas: un diálogo im-pertinente entre Tiempos del incendio de José Roberto Duque y Lo que va dictando el fuego de Juan Antonio Hernández
Authors: Franco José Javier 
Published: July 2018

El trabajo propone la lectura de Tiempos del incendio (2014), de José Roberto Duque, y Lo que va dictando el fuego (2015), de Juan Antonio Hernández, como memoria y actualización de los sucesos del Caracazo (1989). Estos textos de Duque y Hernández pueden entenderse como «dispositivos colectivos de enunciación» (Deleuze, 1978) de una memoria popular —rebelde y militante— que no solo se opone a la versión oficial de los hechos, sino que reabre para el presente/futuro la interrogante sobre la utilización de la violencia de Estado como arma política durante el período de la democracia puntofijista(1958-1998).
Imaginarios urbanos sobre topofilia y topofobia: el caso de la ciudad de Chiguayante, Región del Biobío
Authors: Medel Fernández Matías , Montre Águila Víctor 
Published: July 2018

La modernidad y su asiento en obras de infraestructura, como elemento de memoria y construcción de capital social, constituye un modelo exquisito de soberanía y control integral del territorio, que se materializa también en una memoria social, a través de un paisaje cultural.
Se propone explorar en una dimensión cualitativa, la conformación de un paisaje cultural local y los cambios que se han producido en el territorio como matriz física, así como en la memoria de la comunidad de la ciudad de La Unión (Chile), a partir de la instalación de la central hidroeléctrica Llollelhue, más conocida como La Turbina. En una arquitectura como conjunto material, que considera escalas de control del recurso hídrico, y que es parte de un paisaje con atributos patrimoniales y de vocación productiva actual.
Esto se aborda metodológicamente desde la comprensión multiescalar de la dimensión del paisaje y de la memoria social vinculada, como elemento de la dimensión socio cultural. Los resultados preliminares apuntan a caracterizar esa matriz hipotética de dinámicas colaborativas entre paisaje y sociedad. Así_ este paisaje cultural desarrollado por La Turbina, se define como un sistema patrimonial que conjuga atributos que van más allá de su representación como bien inmueble y refieren una epistemología del territorio.
Clean intermittent catheterization: Single use vs. reuse
Authors: Saadat Seyed Hossein , Shepherd Shaun , Van Asseldonk Brandon , Elterman Dean S. 
Published: July 2018

Introduction: Intermittent catheterization (IC) is one of the fundamental aspects of managing patients with chronic urinary retention. Although reuse of catheters has been allowed to be chosen as the first option for IC, the optimal method of IC and the type of catheter has been a long-standing debate. We conducted a literature review regarding risk of urinary tract infection (UTI) and the costs associated with different methods and catheters.
Methods: A MEDLINE search via PubMed, EMBASE, and EBSCO host was conducted in March 2018. The date of publication was limited to 2014 to present/current.
Results: Single use of catheters (hydrophilic-coated [HC] or uncoated [UC]) was considered to impose a lower risk of UTI in all studies, except in one study that included children, but did not test their dexterity to handle HC catheters. Cost-effectiveness of single-use catheters was confirmed by all studies during this period.
Conclusions: Reuse of catheters exposes the patient to a plethora of possible cleaning techniques and duration of catheter use. Patient adherence to cleaning method cannot be predicted and this further amplifies the risk of complications and their burden on the healthcare system. We recommend a patient-centred approach to consider HC catheters as the first option, while considering the patient’s/caregiver’s ability to accommodate the usage technique. Single-use UC catheters, and finally reuse of catheters are considered as next options if HC catheters are found difficult to handle (especially in children doing self-catheterization). Larger trials investigating this matter are required.
Voldoet de kwaliteitsregulering van de medische zorg op Aruba?
Authors: Dijkhoff J.J. 
Published: July 2018

Voldoet de kwaliteitsregulering van de medische zorg op Aruba?
In de rechtsleer is nauwelijks onderzoek gedaan naar de vraag of na de invoering van de Landsverordening beroepen in de gezondheidszorg en de Landsverordening kwaliteit in de gezondheidszorg een verbetering is te zien ten opzichte van het oude recht. Met dit doel is in deze bijdrage het nieuwe recht met het oude recht vergeleken. De studie bleef beperkt tot de toelating, de beroepsuitoefening en het toezicht en concludeerde in een ontkennend antwoord. De invoering is juridisch een feit, maar in de praktijk kan dit niet staande worden gehouden. Het is duidelijk dat meer onderzoek nodig is voor de verbetering van de kwaliteitsregulering op Aruba.
Method Modification to Extend the Matrix Claim of the Thermo Scientific RapidFinder Salmonella species, Typhimurium, and Enteritidis Multiplex PCR Kit
Authors: Williams Jessica , Evans Katharine , Crabtree David , Hughes Annette , Cooper Charlotte , Rose Helen , Kauppinen Mikko , Flannery Jonathan , Meibers Hannah , Bird Patrick , Benzinger M Joseph , Agin James , Goins David , Chen Yi , Brodsky Michael , Fernandez Maria Cristina 
Published: July 2018

Abstract
Background: The Thermo Scientific RapidFinder™ Salmonella species, Typhimurium and Enteritidis Multiplex PCR Kit is a real-time multiplex PCR assay for the detection and differentiation of Salmonella species, Salmonella Typhimurium, and S. Enteritidis from poultry, pork, and environmental samples. The method has previously been granted certification as Performance Tested Method SM (PTM) 081701, validated according to the AOAC Research Institute (RI) PTM program for poultry (chicken thighs with skin, chicken wings with skin, and chicken nuggets), raw pork sausage matrixes, and stainless steel environmental surface sponges. Objective: This report details the method modification study to validate ground turkey (375 g sample size), chicken carcass rinse, and shell egg matrixes. Methods: The candidate method was compared with the U.S. Food and Drug Administration’s Bacteriological Analytical Manual Chapter 5 for shell eggs and the U.S. Department of Agriculture Food Safety and Inspection Service’s Microbiology Laboratory Guidebook 4.09 for ground turkey (375 g) and chicken carcass rinse matrixes. Results: The statistically significant differences found between the candidate and reference methods upon analysis by probability of detection were in favor of the candidate method. Inclusivity and exclusivity testing demonstrated that the RapidFinder Salmonella species, Typhimurium and Enteritidis Multiplex PCR Kit was able to detect all the major groups of Salmonella. All exclusivity isolates were correctly excluded. Conclusions: The data presented in this report show that the candidate is suitable for the detection and differentiation of Salmonellae from shell egg, chicken carcass rinse, and ground turkey (375 g) matrixes. Highlights: Thermo Scientific RapidFinder Salmonella species, Typhimurium and Enteritidis Multiplex PCR Kit (candidate method) matrix claims extended to include ground turkey (375 g), chicken carcass rinse and shell egg samples.
Motion-triggered video cameras reveal spatial and temporal patterns of red fox foraging on carrion provided by mountain lions
Authors: O’Malley Connor , Elbroch L. Mark , Lendrum Patrick E. , Quigley Howard 
Published: July 2018

Carrion is a rich, ephemeral resource vital to biodiversity and ecosystem health. In temperate ecosystems in which cold temperatures and snowfall influence the accessibility and availability of small prey and seasonal mast crops, carrion may also be a limiting resource for mesocarnivores like red foxes (Vulpes vulpes), which are too small to predate ungulates. Using motion-triggered video cameras and generalized linear mixed models, we studied the spatial and temporal patterns of red fox scavenging at 232 mountain lion kills in the southern Greater Yellowstone Ecosystem (GYE) from 2012–2015. We found that red foxes scavenged mountain lion kills across all habitats throughout the year, however, red fox behaviors varied with season. In winter, we documented red foxes at a greater proportion of mountain lion kills (70.3% in winter vs. 48.9% in summer), and in greater numbers (1.83 foxes per kill in winter vs. 1.16 in summer). In winter, red foxes fed longer (= 102.7 ± 138.3 minutes feeding in winter vs. = 39.7 ± 74.0 in summer), and they more often scavenged while the mountain lion was nearby. We speculated that red foxes may have increased risk taking in winter due to hunger driven by resource scarcity. Our research highlighted an important ecological relationship between red foxes and mountain lions in the GYE. Mountain lions tolerate high levels of scavenging, so the frequency and intensity of red fox scavenging at their kills may not impact mountain lions, but instead facilitate the dispersion and benefits of resources created by this apex predator. Large carnivores, and mid-trophic felids like mountain lions in particular, are essential producers of carrion vital to biodiversity and ecosystem health. In turn, scavengers play critical roles in distributing these resources and increasing the heterogeneity of resources that support biodiversity and ecosystem structure, as well as ecological resilience.