bluuebunny/crossref_metadata_2025_split huggingface dataset:
Razão Isotópica 87Sr/86Sr em Sedimentos Recentes Implicações na Datação Radiométrica das Rochas Sedimentares
Authors: MIZUSAKI ANA MARIA PIMENTEL , KAWASHITA KOJI , THOMAZ FILHO ANTONIO 
Published: April 2019

Radiometric ages of geological significance are obtained when the Rb/Sr isocronic method is applied to argillaceous sedimentary rocks. In spite of these results many questions arise when the Rb/Sr methodology is applied to sedimentary rocks, notably the behavior of the rubidium (Rb) and strontium (Sr) elements during sedimentation and during the diagenetic process. The greatest uncertainty lies in the mechanism and the timing of the strontium isotopic homogenization, with constitutes the basic assumption behind radiometric dating by the Rb/Sr method. The purpose of this work is to contribute to the clarification of the conditions for the strontium isotopic homogenization, the relation between Rb and Sr and the dimension and nature of sedimentary particles, the early process associated with the clay minerals, with sedimentation process and with intersticial fluids. Recent sediments were sampled from different environments: the deltaic region of the Paraíba do SuI River (RJ), the deltaic region of the Açu River (RN), the continental shelf associated with the Amazon River mouth (AM), the continental slope and Jacarepaguá coastal plain (RJ). The samples were analysed by X-ray diffraction, scanning electron microscope and chemical and isotopic techniques. Results obtained show that some samples reached uniform strontium isotopic composition under certain conditions. These conditions include close proximity between samples, clay fraction enriched in expansive minerals such as smectite and degraded illite associated with deposition preferentially in marine waters.
A cloritização na Mina Uruguai, Minas do Camaquã, RS, Brasil
Authors: TROIAN Guilherme , MEXIAS André , GOMES Márcia , CANARIM Denise , PATRIER-MAS Patricia , RENAC Christophe 
Published: April 2019

A região das Minas do Camaquã é a parte constituinte da Bacia do Camaquã, a qual possui direção NE-NW e é preenchida por sedimentos siliciclásticos intercalados com rochas vulcânicas. A clorita é o argilomineral mais abundante da área, ocorrendo em grande quantidade nos halos de alteração hidrotermal presentes nas rochas encaixantes nas mineralizações na Mina Uruguai. Este trabalho consiste na caracterização petrológica, química e estrutural das cloritas, que fornece importante informações sobre diferentes processos e condições de formação do ambiente hidrotermal. Para isso se realizou petrografia óptica, difratometria de raios X, modelamento dos difratogramas através do programa Reynolds Newmod © e microscopia eletrônica de varredura (elétrons secundários e micro-análises por EDS) em amostras representativas de diferentes zonas de alteração hidrotermal identificadas. As cloritas se apresentam com três diferentes tendências: a Clorita I ocorre com aspecto pervasivo sobre matriz das rochas localizadas próximos aos filões mineralizados; é classificada como Fe-clinocloro, apresenta na fração ˂1 µm predominância do politipo IIb e um enriquecimento em Mg2+ e na fração ˂10 µm predominância do politipo Ib (90°) e enriquecimento em Fetotal . A Clorita II ocorre com veios preenchendo pequenas fraturas; é classificada como Chamosita e apresenta politipo estrutural IIb. A Clorita III ocorre alterando minerais detríticos sendo classificada como Mg-Chamosita. A variação na quantidade de ferro das cloritas geradas por processos hidrotermais ( Clorita I ˂10 µm e Clorita II) fornece indícios da ocorrência de pelo menos dois pulsos no processo de alteração hidrotermal: um responsável pela intensa alteração da matriz e dos clastos das rochas e outro responsável pela geração de veios tardios. A variação na quantidade Fetotal dos dois diferentes fluidos responsáveis pela cristalização das cloritas fica evidenciada pela associação de co-genecidade da Clorita II com a hematita, mostrando que o fluido final foi muito mais enriquecido em ferro que o fluido precoce cristalizou a Clorita I ˂10 µm.
UPAYA MGMP DALAM MENINGKATKAN KEMAMPUAN KERJASAMA GURU PPKN DALAM PENGEMBANGAN PERANGKAT PEMBELAJARAN DI KOTA PADANG
Authors: Roni M , Montessori Maria , Ananda Azwar 
Published: April 2019

Abstrak
Penelitian ini dilatarbelakangi masih ada guru PPKn yang belum mampu bekerjasama dengan teman sejawat, terutama dalam mempersiapkan bahan ajar. Hal ini berarti, antar guru dalam satu sekolah belum menjalin kerjasama yang baik demi kemajuan guru dan siswa. Jenis penelitian ini adalah kualitatif dengan metode deskriptif. Penelitian dilakukan di Kota Padang. Informan dalam penelitian ini di ambil secara snow ball sampling dengan menetapkan satu atau beberapa orang informan kunci (key informants) dan melakukan interview atau wawancara terhadap mereka secara bertahap atau berproses. Jenis data terdiri dari data primer dan sekunder, dikumpulkan melalui observasi, wawancara dan dokumentasi. Uji keabsahan data menggunakan trianggulasi. Teknik analisa data melalui cara pengumpulan data, reduksi data, display data dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa: 1) Bentuk-bentuk kegiatan MGMP diantaranya pertemuan rutin bulanan yaitu 8 kali dalam 1 semester. Isi pertemuan merupakan kegiatan yang bertujuan untuk meningkatkan profesionalisme guru, diantaranya kerjasama untuk meningkatkan kemampuan dalam pengembangan perangkat pembelajaran dan mencari solusi kesulitan yang dihadapi oleh guru Kemudian kegiatan MGMP mata pelajaran PPKn SMP/MTs Kota Padang mendatangkan nara sumber dari luar yang kompeten. Pelatihan yang diadakan ada yang bersifat internal yaitu untuk seluruh anggota dan eksternal yaitu mengikuti pelatihan yang diadakan oleh Dinas Pendidikan, seperti workshop dan seminar dan 2) Pembinaan Kerjasama dalam antar guru PPKn di kota Padang dalam pengembangan perangkat pembelajaran meliputi menyusun program pembelajaran. Kerjasama dilakukan antar guru yaitu guru yang kurang memahami tentang pengembangan perangkat pembelajaran akan dibimbing oleh guru yang telah memiliki keterampilan dalam pengembangan perangkat pembelajaran.
El impacto del vertedero de Oum Azza sobre la calidad de las aguas subterráneas de Rabat (Marruecos)
Authors: Touzani Meryem , Kacimi Ilias , Kassou Nadia , Morarech Moad , Bahaj Tarik , Valles Vincent , Barbiero Laurent , Yameogo Suzanne 
Published: April 2019

Un vertedero de 110 ha, ubicado sobre el acuífero superficial de Akrach en Marruecos, ha sido estudiado para caracterizar la calidad de las aguas subterráneas alrededor del vertedero, conocer la extensión del área contaminada y estudiar los factores involucrados en esta contaminación. El vertedero se emplazó en la ciudad de Um Azza (15 km al sur de Rabat), entre el rio Akrach, al oeste, y la represa Sidi Mohaed Ben Abdallah, al este. Un control piezómetro y análisis químicos se hicieron sobre 22 pozos para estudiar esta contaminación. La calidad del agua es afectada por una contaminación importante, especialmente en las áreas al contacto cercano del vertedero, y aguas abajo de este mismo. En las zonas afectadas la conductividad eléctrica de las aguas supera 1100 µS.cm-1, los bicarbonatos superan 508 mg.L-1 , los cloruros, sulfatos y nitratos superan 850,200 y 1 mg.L-1. Además se consiguió alto contenido en cadmio (50-100 µg.L-1) y cromo (40-230 µg.L-1). En definitiva, se superaron olgadamente los valores estipulados en las normas de la OMS para el agua potable y de riego. Un análisis en componentes principales se llevó a cabo sobre el conjunto de datos. No aparece un eje factorial consistente, sino más bien muchos ejes de importancia similar, lo que muestra un conjunto de mecanismos de la misma fuerza involucrados en la calidad química de las aguas contaminadas. Una clasificación jerárquica ascendente da tres grupos de muestras, cada grupo corresponde a un nivel de contaminación.
JELLY EXTRACT DRINKING RED BIT
Authors: Kusumaningrum Intan , Novidahlia Noli , Soraya Dina Ayu 
Published: April 2019

Beets are one of the most useful food ingredients. One of the benefits is to provide natural color in the manufacture of food products. The pigment present in the red bit is betasianin. Betasianin is a class of antioxidants. Drink jelly is a soft gel-shaped drink, generally jelly drinks have elastic properties but consistency or gel strength is weaker than jelly agar. This study aims to diversify food products from red bit beans.The research begins by making red beet extracts first, after which mixing all the ingredients of making jelly drinks. The experimental design used in this research is Completely Randomized Design with three treatment levels and two replications. Data analysis was processed by Kruskal Wallis and ANOVA. The treatments used were comparison of beets and water 1:10, comparison of beets and water 1: 12,5 and comparison of beets and water 1:15. Organoleptic tests used in the study were hedonic rank test and sensory quality test.The results showed that the treatment comparison of beets and water 1:15of was selected jelly beverage based on hedonic test result by panelist. Chemical analysis of the selected product was then performed. Drink jelly comparison of beets and water 1:15 has antioxidant levels of 4.2 mg vit c / 100g sample, food fiber content of 14, 92%, and total sugar of 26.27%.
Comparative Evaluation of Root Surface Changes by Air-Polishing using Glycine and Chlorhexidine Acetate Powder: An in-vitro Study
Authors: Shukla Hardi Rajanbhai , Mathur Aditi , Shetty Neema , Makhijani Barkha , Manohar Balaji 
Published: April 2019

Background: Biofilm removal is the central part of the etiotropic and maintenance phase of periodontal therapy. Commercially available injection water jets such as Prophy-Jet allows an efficient and convenient biofilm removal as an adjunct to mechanical periodontal therapy. But, due to the abrasive nature of traditionally used air polishing powders such as sodium bicarbonate, there is a continuous research going on for less abrasive materials.
Aims: To compare the effectiveness of air polishing using glycine powder and chlorhexidine acetate powder on tooth surface as compared to ultrasonic scaling and also to evaluate the time taken for stain removal.
Materials and Methods: Thirty fully erupted, single rooted teeth extracted due to poor periodontal prognosis were used in this in-vitro study. The sample teeth were divided into 3 equal groups and stained in coffee solution. The test Groups A and B underwent air-polishing with glycine powder and chlorhexidine acetate powder respectively. Group C was control group and underwent ultrasonic scaling. Time taken for stain removal was recorded. The sample teeth were also evaluated under a stereo-microscope and digital micrometer preprocedurally and post-procedurally to measure surface changes.
Results: The study showed statistically significant results (p<0.05) when measurements of changes in surface roughness of samples treated with glycine powder air-polishing were compared with ultrasonic scaling and chlorhexidine acetate powder air-polishing were compared with ultrasonic scaling. Surface texture loss as well as time taken for stain removal was minimum with glycine powder and maximum with ultrasonic scaling.
Conclusion: Air-polishing with glycine powder was least abrasive on root surface followed by chlorhexidine acetate powder air-polishing. This is because of the lower particle size of glycine which also covers larger area in lesser time.
Probing Pocket Depth and Clinical Attachment Level between Non-Surgical and Surgical Periodontal Therapy in Chronic Periodontitis Patients: A Randomised Controlled Clinical Trial
Authors: Shah Harish Kumar , Sharma Shivalal , Goel Khushboo , Shrestha Sajeev , Niraula Surya Raj 
Published: April 2019

Background: : Chronic periodontitis is one of the most common form of periodontal diseases which either require non-surgical periodontal therapy or open flap debridement-surgical therapy or both. To date, it is unclear as of how much changes occur after NSPT or OFD and which therapy provides the best outcome in chronic periodontitis having probing pocket depth ≥ 5-7 mm.
Aim: The aim of this randomized controlled clinical trial was to evaluate the Probing Pocket Depth and Clinical Attachment Level between NSPT and OFD in chronic periodontitis patients.
Materials and Methods: A total of 52 healthy patients with PPD ≥ 5-7 mm were included in the present study. Half of the patients assigned for the NSPT and half in the OFD group. The PPD and CAL were measured at baseline, three and six months. Independent sample t-test was used to compare the change in mean PPD and CAL between NSPT and OFD group at three and six months, respectively.
Results: The difference in the mean decrease of PPD between NSPT and OFD group at three and six months were 0.15 mm (P<0.05) and 0.19 mm (P<0.05), respectively. The difference in the mean gain of CAL between NSPT and OFD group at three and six months were 0.03 mm (p>0.05) and 0.12 mm (P<0.05), respectively.
Conclusion: Substantial improvement in periodontal status occurred with both the therapies, however, significantly higher decrease in PPD and gain in CAL were seen with surgical therapy.
Determination of radiological source term of CHASHMA-1 NPP during LOCA
Authors: Mehboob K. , Aljohani M. S. 
Published: April 2019

Abstract
The CHASHMA Nuclear Power Plant unit 1 is known as CHASNUPP-1. The CHASNUPP-unit 1 is a 996 MWth intermediate type pressurised water reactor that began commercial operation in June 2000 in Pakistan. The CHASNUPP unit 1 is a conventional two loop PWR operated by the Pakistan Atomic Energy Commission (PAEC). The radiological source term of CHASNUPP-1 has been evaluated and compared with the advanced modular reactor (SMART) and KORI-1 reactor. For this purpose, modelling and simulation has been carried out in MATLAB. a kinetic model has been developed to carry out the simulation of the release of radionuclides. The core and coolant activity of CHASNUPP-1 is compared with the similar type reactor KORI-1. The developed model uses the ORIGEN 2.2 core inventory as a subroutine. The coolant inventory has been evaluated with 0.25% fuel damage and compared with SMART and KORI-1 reactor.
Impact of aneurysm shape and neck configuration on cerebral infarction during microsurgical clipping of intracranial aneurysms
Authors: Goertz Lukas , Hamisch Christina , Kabbasch Christoph , Borggrefe Jan , Hof Marion , Dempfle Anna-Katharina , Lenschow Moritz , Stavrinou Pantelis , Timmer Marco , Brinker Gerrit , Goldbrunner Roland , Krischek Boris 
Published: April 2019

OBJECTIVECerebral infarction is a significant cause of morbidity and mortality related to microsurgical clipping of intracranial aneurysms. The objective of this study was to determine the impact of aneurysm shape and neck configuration on cerebral infarction after aneurysm surgery.METHODSThe authors retrospectively reviewed consecutive cases of ruptured and unruptured aneurysms treated with microsurgical clipping at their institution between 2010 and 2018. Three-dimensional reconstructions from preoperative computed tomography and digital subtraction angiography were used to determine aneurysm shape (regular/complex) and neck configuration (regular/irregular). Morphological and procedure-related risk factors for cerebral infarction were identified using univariate and multivariate statistical analyses.RESULTSAmong 243 patients with 252 aneurysms (148 ruptured, 104 unruptured), the overall cerebral infarction rate was 17.1%. Infarction tended to occur more often in aneurysms with complex shape (p = 0.084). Likewise, aneurysms with an irregular neck had a significantly higher rate of infarction (37.5%) than aneurysms with regular neck configuration (10.1%, p < 0.001). Aneurysms with an irregular neck were associated with a higher rate of intraoperative rupture (p = 0.003) and temporary parent artery occlusion (p = 0.037). In the multivariate analysis, irregular neck configuration was identified as an independent risk factor for infarction (OR 4.2, 95% CI 1.9–9.4, p < 0.001), whereas the association between aneurysm shape and infarction was not significant (p = 0.966).CONCLUSIONSIrregular aneurysm neck configuration represents an independent risk factor for cerebral infarction during microsurgical clipping of both ruptured and unruptured aneurysms.
Otoscopic and Audiologic Findings in an Ati Community in Boracay
Authors: Reyes-Quintos Maria Rina T. , Santos Regie Lyn P. , Tantoco Ma. Leah C. , Roldan Rodante A. , Fellizar Kathleen R. , Dalizay-Cruz Meliza Anne M. , Abes Generoso T. , Chiong Charlotte M. 
Published: April 2019

Background: Certain indigenous populations have been noted by the World Health Organization (WHO) to have the highest prevalence rates for chronic suppurative otitis media (CSOM), including the Australian Aborigines (28-43%), Greenlanders (2-10%) and Alaskan Eskimos (2-10%).
Objectives: To determine the prevalence of common ear problems, particularly CSOM, among the indigenous Ati or Aeta community in Bolabog, Boracay, and to determine their hearing sensitivity using screening audiometry.
Methods:
Study Design: Descriptive cross-sectional study.
Setting: A small Ati community in Bolabog, Boracay.
Population: A total of 63 adults and children underwent medical interview and otoscopy. Additionally 24 had their hearing screened by audiometry.
Results: About a quarter of the population participated in the study, including 41 children (40% of all children) and 22 adults (18% of all adults). Forty-six percent of children and 23% of adults who were examined had previous history of ear discharge, while 22% of children and 45% of adults who were examined had history of hearing loss. Seventeen percent of children had history of hearing loss in the family. CSOM was found in 18 (43.90%) children and 8 (36.36%) adults. Impacted cerumen was found in 17.1% of children. Eleven female children underwent screening audiometry. Of these, eight had normal hearing and three had abnormal findings. Thirteen adults were also tested, five of whom were male and had normal hearing bilaterally. Four of eight female adults had abnormal hearing, of which three were unilateral.
Conclusions: The Ati population in Bolabog, Boracay belongs to a group with the highest prevalence rates for CSOM (27.0%). A bigger sample for screening audiometry is required for proper estimation of hearing loss prevalence. Both environmental and genetic factors may have increased the prevalence of CSOM in the Ati population of Boracay.

Keywords: Hearing loss, chronic suppurative otitis media, Boracay, indigenous community, Ati, Aeta
Dysphagia as the Initial Presenting Symptom of Amyotrophic Lateral Sclerosis
Authors: Fernando Adrian F. , Chua Antonio H. 
Published: April 2019

Objective: To present a case of Amyotrophic Lateral Sclerosis (ALS) with an unusual initial presentation of dysphagia.
Methods:
Design: Case Report
Setting: Private tertiary university hospital
Patient: One
Results: A 78-year-old female with two years’ progressive dysphagia thrice refused biopsy of a right oropharyngeal bulge recommended by three differenet otorhinolaryngologists. Slurring developed, but normal cranial CT scans cleared her of a cerebrovascular event. Subsequent marked weight loss, dysarthria and lower extremity weakness led to tests including an electromyogram and nerve conduction velocity study (EMG-NCV) consistent with amyotrophic lateral sclerosis (ALS).
Conclusion: Awareness of neurologic disorders that cause dysphagia may prevent unnecessary diagnostic interventions. Algorithms for evaluation and management of dysphagia may also reduce misdiagnosis and consequent mismanagement. ALS may be considered whenever symptoms of dysphagia present with subsequent development of other motor neurologic signs of denervation such as fasciculation, weakness and atrophy. Otorhinolaryngologists play a vital role in the ALS team in light of the need for thorough swallowing evaluation and airway support.
Key words: dysphagia, Amyotrophic Lateral Sclerosis (ALS), bulbar-onset ALS, oropharyngeal mass
Pleomorphic Adenoma Arising from Heterotropic Salivary Gland Tumor in a Supraclavicular Lymph Node
Authors: Galvan Grace Naomi B. , De Leon Ma. Delhia A. , Instrella Romulus A. , See Nixon S. 
Published: April 2019

Objectives: To present a case of pleomorphic adenoma arising from heterotopic salivary gland tissue in a supraclavicular lymph node.
Design: Case report
Setting: Tertiary government hospital
Patient: One
Result: A 38-year-old female consulted with a six month history of an enlarging right supraclavicular mass. Fine needle aspiration biopsy was negative for malignant cells. No primary tumor could be demonstrated elsewhere. Excision biopsy was performed and final histopathology revealed pleomorphic adenoma surrounded by a normal lymph node. Atypical tumor cells and mitoses were not found.
Conclusion: Criteria were met for diagnosing heterotopic salivary gland in a supraclavicular lymph node which subsequently developed into pleomorphic adenoma The rare location of the lesion as well as the unusual histopathological result of pleomorphic adenoma arising from a lymph node merited submission of this case report.
Key words: heteroplasia, heterotopic, cancer, metastasis, tumor
Fractured Tracheostomy Tube Ingestion in a Pediatric Patient
Authors: Simtoco Michie Jay D. , Soriano–Castaneda Samantha , Alonzo Daniel M. , Reyes-Quintos Maria Rina T. 
Published: April 2019

Objective: To report a case of fractured tracheotomy tube ingestion in a pediatric patient, discussing the clinical presentation, complications and management of tracheobronchial tree versus upper digestive tract foreign bodies.

Method:
Design: Case Report
Setting: Tertiary Private Hospital
Subject: One

Results: A 4-year-old male child with unusual hypersensitivity to routine tracheotomy suctioning was discovered to have a fractured tracheotomy tube. Emergency radiographs localized the cannula in the abdomen and bronchoscopy was deferred. The foreign body was eventually passed out after 4 days

Conclusion: Due diligence in diagnostics prior to bronchoscopy led to the avoidance of an unnecessary and sometimes complicated procedure. In developing countries with poor access to health care, the importance of regular tracheotomy follow-ups and periodic replacement cannot be overemphasized. A search of the English literature using Pubmed and Ovid search engines with keywords tracheostomy, foreign bodies, and pediatrics confirms that this is the first reported accidental ingestion of a fractured tracheotomy tube in a pediatric patient

Keywords: Tracheostomy, Complications, Foreign bodies, Pediatrics
Papillary Thyroid Carcinoma Presenting with a Right Preauricular and Intracranial Mass
Authors: Pascual Renato C. , Castañeda Johann F. , Romualdez Joel A. 
Published: April 2019

Objective: To describe a case of a papillary thyroid carcinoma presenting with a pre-auricular and an intracranial mass and review the literature on the metastatic nature and invasiveness of papillary thyroid carcinoma.
Method:
Design: Case Report
Setting: Tertiary Private Hospital
Patient: One
Results: A 46-year-old female with a 12-year anterior neck mass and a two-year right pre-auricular pleomorphic adenoma on fine needle aspiration biopsy was found to have an intracranial mass on CT-scan. Total thyroidectomy and section biopsy of the preauricular mass yielded a final histopathologic report of follicular variant of papillary carcinoma, thyroid gland; and metastatic papillary thyroid carcinoma, follicular type, pre-auricular mass. The condition of the patient precluded neurosurgical intervention and RAI therapy, and she underwent 23 sessions of external radiotherapy using 46Gy with significant diminution in size of the intracranial metastasis.
Conclusion: Papillary thyroid malignancy may be an indolent tumor but is capable of distant metastasis. We should be alerted by host and tumor factors which can be predictors of a more radical papillary malignant disease.
Keywords: papillary thyroid carcinoma; papillary thyroid carcinoma metastasis; infratemporal metastasis; brain metastasis of papillary carcinoma.