847 research outputs found
Sistem Informasi Pencatatan Material Untuk Pengadaan Barang Masuk Dan Keluar
Manajemen material pada proyek konstruksi sipil yang kurang baik seringkali mengakibatkan keterlambatan penyelesaian proyek. Dapat ditemukan beberapa masalah di lapangan seperti pembuatan dokumentasi data pembelian & penggunaan material konstruksi dan laporan yang masih dilakukan secara manual, sulitnya di lapangan untuk mengecek ketersediaan material konstruksi dan dibutuhkannya proses autorisasi untuk mengeluarkan material konstruksi dari gudang. Untuk menyelesaikan masalah di atas, dibutuhkan bantuan dari bidang ilmu lain, dalam hal ini Sistem Informasi untuk membantu memanajemen material pada sebuah proyek konstruksi. Dengan adanya Sistem Informasi dapat ditemukan masalah pada sistem di lapangan yang dinilai dapat dirubah, kemudian dibuat sebuah sistem baru untuk menyelesaikan masalah tersebut. Dengan adanya aplikasi dengan bahasa pemrograman Java ini diharapkan dapat membantu pihak – pihak yang bekerja pada sebuah proyek konstruksi untuk memanajemen material di lapangan.Dengan menggunakan aplikasi ini manajemen material akan menjadi lebih mudah, cepat, aman, efisien, akan ada pengurangan dalam penggunaan kertas kerja dan pengurangan pekerjaan yang masih dilakukan secara manual
Analysis of the knowledge and practice of Folkloric leisure activities in nature of the school Population in Xove council
El principal propósito que perseguimos con la realización de este documento
fue conocer la práctica de juegos populares tradicionales en el medio natural en
el Ayuntamiento de Xove, revelando de este modo la consiguiente pérdida y
desvalorización que los mismos y la naturaleza sufren hoy en día. Para tal fin
contamos con la realización de cuestionarios personales a una muestra de 97
alumnos/as de Educación Primaria. Los resultados obtenidos nos permitieron
demostrar que efectivamente esa progresiva separación de la que hablábamos
al principio era real, tanto en lo que se refiere a los juegos populares
tradicionales como en lo referente a la naturaleza, producida principalmente por
la rápida industrialización del municipio, el creciente desarrollo del urbanismo
de la capitalidad del municipio y la reciente aparición de las nuevas tecnologías, así como otros factores y cuestiones derivadas de las anteriores.
Atendiendo a tales datos podríamos concluir el estudio afirmando que,
efectivamente, la forma de vida de la sociedad condiciona la forma en la que
las personas juegan y se relacionan con la naturalezaThe main purpose we intended by carrying out this document was to show up
the practice of folkloric games in nature in Xove council and reveal this way the
consequent loss and devaluation that the same ones and nature are suffering.
For such an end, we dip into carrying out made personally questionnaires with a
sample of 97 pupils of Primary Education. Obtained results allowed us to prove
that, in fact, the progressive separation we talked about at first was real, not
only regarding the folkloric games but regarding the nature, produced mainly by
the fast industrialization of the municipality, the increasing development of the
planning in the capital of the council and the recent appearance of new
technologies, as well as other factors and matters derived from the previous
ones. By paying attention to such information we could conclude our study
stating that, in fact, the way of society life clearly determine the way in which
people play and relate with natureS
Primary vaginal carcinoma in genital prolapses: a case report with review of literature
Primary vaginal cancer in a case of genital prolapse is a very rare malignancy. The usual age incidence is above 60 years. Likely risk factors and etiology are elderly age, smoking, low immunity, mechanical irritation and inflammation, and persistent infection with oncogenic human papillomavirus. Clinical presentation varies with the stage of the disease. Usually confused with decubitus ulcer in advanced genital prolapse. Histopathology of the biopsy specimen confirms the diagnosis. Though clinically staged imaging is required for better management and prognosis. Management modality depends on the stage, type of malignancy, comorbidity, and patient’s decision. Stage, grade, type of cancer, comorbidity, and adequate management affect the prognosis. Here we present a case of primary vaginal carcinoma in a 71 year old lady with complete genital prolapse simulating decubitus ulcer. The diagnosis was confirmed with histopathology and she was treated with radiotherapy. She died in her home two months after her treatment. The aim of the presentation is (1) Statistical documentation for a rare case and (2) To create awareness of vaginal cancer in a clinically benign-looking decubitus ulcer in genital prolapse
Microbial community structure in a unlimed and limed mine contaminated soil (Pb, Cu, As) with different organic and inorganic treatments
RAMIRAN International ConferenceMine contaminated soils are very unfavourable environments with limiting factors, in particular residual high levels
of heavy metals, soil acidity, lack of organic matter and poor substrate structure. Toxic effects of HM on soil
microorganisms have been extensively studied (Frostegård et al., 1993; Bååth et al., 1998) and the measurements of
community structure indicated that the HM had an effect resulting in a change in community composition (Ellis et
al., 2003; Rajapaksha et al, 2004). Nowadays molecular biology techniques, such as the analysis of phospholipid
fatty acid (PLFA) patterns, make it possible to study the microbial community structure of soil microorganisms.
The PLFA technique has been used to elucidate different strategies employed by microorganism to adapt to changed
environmental conditions under wide ranges of soil types, management practices, climatic origins and different
perturbations (Zelles, 1999). By phospholipid fatty acid analysis it is possible to examine broad scale patterns in
microbial community structure (Bååth et al. 2005) and generally, after the application of multivariate statistical
analyses, whole community fatty acids profiles indicate which communities are similar or different. Determination
both microbial community composition and biomass size by this direct method gives results that very closely
represent the in situ soil conditions and is currently used for soil monitoring purposes (Nielsen and Winding, 2002).
This study aimed to evaluate the effect of different remediation technologies in a mine contaminated soil
including several organic and inorganic treatments combined with liming by the soil microbial community structure
analysi
Microbial characterization of a mine soil subjected to different remediation technologies combining organic and inorganic treatments and plant cultivation
RAMIRAN International ConferenceIn Portugal, additional research is needed if technologies based on the combined action of plants and the microbial
communities they support within the rhizosphere are to be adopted in large-scale remediation actions (Nabais et al.,
2008). Plants growing in abandoned mines are useful to indicate the mineral composition of the soil and they are
able to accumulate or exclude toxic metals (Pratas et al., 2005). Taking into account that the mine degraded soils
have low concentrations of plant nutrients, it is necessary to apply amendments to ensure plant cover when
remediation technologies are present. But soil amendments and the development of a root system might induce
shifts in the microbial community structure among the different treatments (Pérez-de-Mora et al., 2006). Moreover,
data about the toxic effects of heavy metals on soil microorganisms indicated that heavy metal-sensitive bacteria are
probably responsible for the decrease in bacterial activity and the competitive advantage of more tolerant ones
resulted in a change in community composition (Díaz-Raviña and Bååth, 1996). Hence, relationships between the
soil composition, plant species occurring above-ground and the soil microbial communities have been revealed in
many research (Kourtev et al., 2003) providing an important link between above and below-ground processes in
terrestrial ecosystems. Soil microbial community structure is increasingly being marketed as ecologically-relevant
endpoint and it can realistically be incorporated for assessing the potential risks associated with soil amendment
strategies on sustainability of soil ecosystems.
Studies of different remediation technologies with mine soils in Portugal, including amendment materials
from farming and industrial sources and the use of native plant species (Guiwei et al., 2008; de Varennes et al.,
2009) revealed differential effects of treatments on soil enzymes and microbial respiration, suggesting a change in
microbial communities. The information about this fact is scarce and had focused on soil biochemical properties,
producing no clear results. Phospholipid fatty acid (PLFA) patterns are sensitive indicators of changes in microbial
community structure. This technique has been used to elucidate different strategies employed by microorganism to
adapt to changed environmental conditions under wide ranges of soil types, management practices, climatic origins
and different perturbations (Zelles, 1999). The present study is the first attempt to characterize, by means of the
analysis of PLFA patterns, soil microbial population from a Pb-contaminated mine soil subjected to different
remediation technologies including revegetation with native herbaceous species
Dosimetric Performance and Planning/Delivery Efficiency of a Dual-Layer Stacked and Staggered MLC on Treating Multiple Small Targets: A Planning Study Based on Single-Isocenter Multi-Target Stereotactic Radiosurgery (SRS) to Brain Metastases.
Purpose: To evaluate the dosimetric performance and planning/delivery efficiency of a dual-layer MLC system for treating multiple brain metastases with a single isocenter.
Materials and Methods: 10 patients each with 6-10 targets with volumes from 0.11 to 8.57 cc, and prescription doses from 15 to 24 Gy, were retrospectively studied. Halcyon has only coplanar delivery mode. Halcyon V1 MLC modulates only with the lower layer at 1 cm resolution, whereas V2 MLC modulates with both layers at an effective resolution of 0.5 cm. For each patient five plans were compared varying MLC and beam arrangements: the clinical plan using multi-aperture dynamic conformal arc (DCA) and non-coplanar arcs, Halcyon-V1 using coplanar-VMAT, Halcyon-V2 using coplanar-VMAT, HDMLC-0.25 cm using coplanar-VMAT, and HDMLC-0.25 cm using non-coplanar-VMAT. All same-case plans were generated following the same planning protocol and normalization. Conformity index (CI), gradient index (GI), V12Gy, V6Gy, V3Gy, and brain mean dose were compared.
Results: All VMAT plans met clinical constraints for critical structures. For targets with diameter \u3c 1 cm, Halcyon plans showed inferior CI among all techniques. For targets with diameter \u3e1 cm, Halcyon VMAT plans had CI similar to non-coplanar VMAT plans, and better than non-coplanar clinical DCA plans. For GI, Halcyon MLC plans performed similarly to coplanar HDMLC plans and inferiorly compared to non-coplanar HDMLC plans. All coplanar VMAT plans (Halcyon MLC and HDMLC) and clinical DCA plans had similar V12Gy, but were inferior compared to non-coplanar VMAT plans. Halcyon plans had slightly reduced V3Gy and mean brain dose compared to HDMLC plans. The difference between Halcyon V1 and V2 is only significant in CI of tumors less than 1cm in diameter. Halcyon plans required longer optimization than Truebeam VMAT plans, but had similar delivery efficiency.
Conclusion: For targets with diameter \u3e1 cm, Halcyon\u27s dual-layer stacked and staggered MLC is capable of producing similar dose conformity compared to HDMLC while reducing low dose spill to normal brain tissue. GI and V12Gy of Halcyon MLC plans were, in general, inferior to non-coplanar DCA or VMAT plans using HDMLC, likely due to coplanar geometry and wider MLC leaves. HDMLC maintained its advantage in CI for smaller targets with diameter \u3c1 cm. © 2019 Li, Irmen, Liu, Shi, Alonso-Basanta, Zou, Teo, Metz and Dong
‘Go or Grow': the key to the emergence of invasion in tumour progression?
Uncontrolled proliferation and abnormal cell migration are two of the main characteristics of tumour growth. Of ultimate importance is the question what are the mechanisms that trigger the progression from benign neoplasms (uncontrolled/autonomous proliferation) to malignant invasive tumours (high migration). In the following, we challenge the currently prevailing view that the emergence of invasiveness is mainly the consequence of acquired cancer cell mutations. To study this, we mainly focus on the ‘glioblastoma multiforme' (GBM) tumour which is a particularly aggressive and invasive tumour. In particular, with the help of a simple growth model, we demonstrate that the short time required for the recurrence of a GBM tumour after a gross total resection cannot be deduced solely from a mutation-based theory. We propose that the transition to invasive tumour phenotypes can be explained on the basis of the microscopic ‘Go or Grow' mechanism (migration/proliferation dichotomy) and the oxygen shortage, i.e. hypoxia, in the environment of a growing tumour. We test this hypothesis with the help of a lattice-gas cellular automaton. Finally, we suggest possible therapies that could help prevent the progression towards malignancy and invasiveness of benign tumour
Probing the QGP Phase Boundary with Thermal Properties of Mesons
A novel attempt has been made to probe the QCD phase boundary by using the
experimental data for transverse momenta of {\phi} mesons produced in nuclear
collisions at AGS, SPS and RHIC energies. The data are confronted with simple
thermodynamic expectations and lattice QCD results. The experimental data
indicate a first-order phase transition, with a mixed phase stretching the
energy density between \sim1 and 3.2 GeV/fm3 corresponding to SPS energies.Comment: 8-pages, 3-figs, Replaced with the published versio
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