Esophageal Cancer Initially Thought to be Accompanied by a Solitary Metastasis to an Intrathoracic Paraaortic Lymph Node

Esophageal cancers usually exhibit lymph-node metastases. Although a solitary lymph-node metastasis is occasionally found, the involvement of an intrathoracic paraaortic node is rare. We present here an intrathoracic mid-esophageal cancer case in which an accompanying solitary retroaortic mass was found within the posterior mediastinum by integrated positron emission tomography/computed tomography. For diagnosis, thoracoscopic resection of the mass was performed from a left thoracic approach, and histology revealed it to be a squamous cell carcinoma metastasized from the esophageal cancer. Upon radical esophagectomy after neoadjuvant therapy as a T3N1M0 Stage IIIa (AJCC/UICC) cancer, the esophageal cancer was found to have invaded unexpectedly deeply in the vicinity of the descending aorta. Another lymph node within the paraaortic region was also involved (T4N1M0 Stage IIIc). The present case and other cases we review here inform our understanding of metastasis to intrathoracic paraaortic nodes as follows:1) its existence may indicate extensive lymph-node metastasis or direct tumor invasion nearby, and 2) it may be accompanied by other lymph-node involvements in this region, even if it appears solitary upon preoperative investigation. Thus, for radical esophagectomy, sufficient lymph-node dissection is required, even at locations not reached by the usual right thoracic approach. Definitive chemoradiotherapy may be a better choice for preoperatively recognized T3 esophageal cancer when the cancer is accompanied by paraaortic lymph node metastasis

Studi Fasies Formasi Endapan Danau untuk Menentukan Lingkungan Pengendapan Danau Limboto

The research area located in the lowland zone and the corrugated hilly zone which is dominated by sedimentary rocks. Therefore, this study aims to determine the geological features of the research area and the study of depositional environmental facies of the Lake Deposits Formation as an analysis of the depositional environment of Limboto Lake. The research method used is the surface geological mapping, measuring a section of stratigraphic and laboratory analysis. Field data consists of stratigraphical features of the research area. Laboratory analysis consists of petrography and stratigraphy-sedimentology analysis. It can be concluded facies and stratigraphy of research from older to youngest, consists of clastic limestones unit formed in Late Miocene-late Early Pliocene age, reef limestones formed in Late Miocene-early Late Pliocene age, sandstones unit formed in Late Pliocene-Pleistocene age, clay unit, and sandy clay unit are deposited in Holocene. Overall the study site consisted of marine, transitional and terrestrial deposition environment with Lake Deposits Formation facies is lake margin clastic deposits and meandering-stream environment deposits

Analisis Tingkat Kerentanan Longsor Daerah Muara Sungai Bone Kota Gorontalo

In Gorontalo City there have been 11 landslides in 2017 which are spread in 3 sub-districts namely Hulonthalangi, Kota Barat, and Dumbo Raya. While in 2018 there was a landslide in Tenda village which claimed two lives. The research site is located in coordinate 00°29\u2700" - 00°31\u2751" N and 123°3\u2700" - 123°5\u2727" E with the wide of area 2,531 Ha consisting of 1,745 Ha of the mainland and 786 Ha of the sea. The research area administratively is located in Dumbo Raya Sub-district, Gorontalo city, Gorontalo Province. The purpose of this study was to determine the level of landslide susceptibility in the study area and make zonation maps of landslide prone area. This research method applied in this study was integration of field survey and GIS analysis. The parameters which influence the landslide are lithology, precipitation, slope, lineament density, type of soil, and the land use. Based on the analysis of landslide susceptibility, the level of susceptibility in the research site consists of 3 classes; low, moderate, and high. The low class of landslide susceptibility has the area of 217.46 Ha, the moderate class of landslide susceptibility has the area of 338.93 Ha with the biggest spread is in Leato Selatan village; 102.68 Ha. The high class of landslide susceptibility has the area of 1,188.70 Ha with the biggest spread in Leato Selatan Village; 288.66 Ha

Karakteristik Alterasi dan Mineralisasi Hidrotermal Daerah Hulawa, Gorontalo, Indonesia

Gold is one of the precious metals with high economic value, so the exploration process becomes an important stage to find new resources so that gold production remains optimal. The research was aimed at investigating the geological condition and characteristics of hydrothermal alteration and mineralization developed in the research site. The research site was included in the area CoW of PT. Gorontalo Sejahtera Mining exactly lied in Hulawa Village, Gorontalo, Indonesia. This research integrated the fieldwork with laboratory tests and analysis, including petrography, Analytical Spectral Devices, and mineragraphy. Based on data that had been conducted and data analysis results, it can be concluded that the research site consisted of lithology in the form of Oligocene granodiorite and Pliocene rhyodacite and diatreme breccia that rolled as host rock\u27s mineralization. Normal right-slip fault directing E-W is interpreted as a pre-mineralization structure, while normal left-slip fault directing NNE-SSW is interpreted as syn-mineralization structure or controlling structure during alteration and mineralization process. Alteration developed in research area consisted of the phyllic zone (sericite + quartz ± pyrite ± montmorillonite ± chlorite ± carbonate), argillic zone (illite + kaolinite ± smectite ± montmorilonite), and chloritic zone (chlorite + carbonate + pyrite ± quartz ± illite ± sericite ± montmorillonite). Hydrothermal deposits controlled by geological structure and volcanic mechanism. Mineralization in the research site was found in stockwork quartz veins and hydrothermal breccia, and some were found in dissemination with ores such as pyrite, chalcopyrite, arsenopyrite, galena, sphalerite, bornite, covelite, gold, and electrum. Based on its alteration and mineralization characteristics, the epithermal deposits in the research site was the type of low sulphidation deposite in-depth level in the model of open-vein and breccia

Pseudorapidity dependence of parton energy loss in relativistic heavy ion collisions

We analyze the recent data from the BRAHMS Collaboration on the pseudorapidity dependence of nuclear modification factors in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV by using the full three dimensional hydrodynamic simulations for the density effects on parton energy loss. We first compute the transverse spectra at $\eta=0$ and 2.2, and next take a ratio $R_{\eta}=R_{AA}(\eta=2.2)/R_{AA}(\eta=0)$, where $R_{AA}$ is a nuclear modification factor. It is shown that hydrodynamic components account for $R_{\eta}\simeq 1$ at low $p_\mathrm{T}$ and that quenched pQCD components lead $R_{\eta} < 1$ at high $p_\mathrm{T}$ which are consistent with the data. Strong suppression at $\eta=2.2$ is compatible with the parton energy loss in the final state.Comment: 5 pages, 4 figures; one figure adde

Karakteristik Alterasi dan Mineralisasi Hidrotermal Daerah Hulawa, Gorontalo, Indonesia

Gold is one of the precious metals with high economic value, so the exploration process becomes an important stage to find new resources so that gold production remains optimal. The research was aimed at investigating the geological condition and characteristics of hydrothermal alteration and mineralization developed in the research site. The research site was included in the area CoW of PT. Gorontalo Sejahtera Mining exactly lied in Hulawa Village, Gorontalo, Indonesia. This research integrated the fieldwork with laboratory tests and analysis, including petrography, Analytical Spectral Devices, and mineragraphy. Based on data that had been conducted and data analysis results, it can be concluded that the research site consisted of lithology in the form of Oligocene granodiorite and Pliocene rhyodacite and diatreme breccia that rolled as host rock\u27s mineralization. Normal right-slip fault directing E-W is interpreted as a pre-mineralization structure, while normal left-slip fault directing NNE-SSW is interpreted as syn-mineralization structure or controlling structure during alteration and mineralization process. Alteration developed in research area consisted of the phyllic zone (sericite + quartz ± pyrite ± montmorillonite ± chlorite ± carbonate), argillic zone (illite + kaolinite ± smectite ± montmorilonite), and chloritic zone (chlorite + carbonate + pyrite ± quartz ± illite ± sericite ± montmorillonite). Hydrothermal deposits controlled by geological structure and volcanic mechanism. Mineralization in the research site was found in stockwork quartz veins and hydrothermal breccia, and some were found in dissemination with ores such as pyrite, chalcopyrite, arsenopyrite, galena, sphalerite, bornite, covelite, gold, and electrum. Based on its alteration and mineralization characteristics, the epithermal deposits in the research site was the type of low sulphidation deposite in-depth level in the model of open-vein and breccia

Psychological Well-Being in Early Childhood in Memorizing the Qur'an

This study aims to describe the psychological well-being experienced by early childhood in memorizing the Qur'an. This study is included in qualitative research using a phenomenological approach to early childhood who memorize the Qur'an. Data collection techniques through observation, interviews and documentation. Then analyze the data by collecting data, reducing, presenting, and drawing conclusions. Based on that, the researcher after collecting data, reducing, then concluded that in memorizing the Qur'an, early childhood obtains psychological well-being through learning with asatidz and friends with the easy and fun talaqqi method so that they are happy when memorizing the Qur'an. In addition, support from family and the environment also affects their psychological well-being, especially in memorizing the Qur'an. Early childhood with psychological well-being can provide peace and good growth and development, especially in forming characters that are in accordance with the teachings of the Qur'an

Comparison of space-time evolutions of hot/dense matter in sNN\sqrt{s_{NN}}=17 and 130 GeV relativistic heavy ion collisions based on a hydrodynamical model

Based on a hydrodynamical model, we compare 130 GeV/$A$ Au+Au collisions at RHIC and 17 GeV/$A$ Pb+Pb collisions at SPS. The model well reproduces the single-particle distributions of both RHIC and SPS. The numerical solution indicates that huge amount of collision energy in RHIC is mainly used to produce a large extent of hot fluid rather than to make a high temperature matter; longitudinal extent of the hot fluid in RHIC is much larger than that of SPS and initial energy density of the fluid is only 5% higher than the one in SPS. The solution well describes the HBT radii at SPS energy but shows some deviations from the ones at RHIC.Comment: 28 pages, 21 figures, REVTeX4, one figure is added and some figures are replace