6 research outputs found
RANCANG BANGUN SIMULATOR HUJAN GUNA MENDUKUNG UJI EARLY WARNING SYSTEM UNTUK SIMULASI LONGSORAN PADA LAHAN PERTANIAN
Simulated rainfall was desirable for research such as the study of erosion,
infiltration, interception. The simulated rainfall is produced by rainfall simulator.
Rainfall simulator is a tool that can be used to study the hydrological parameters
such as infiltration and runoff under a controlled use of the rain. Rainfall
simulator can be used for research related to the repeatability of natural
phenomena, such as research related to natural phenomena such as rain erosion,
infiltration and runoff.
The aims of this research is designing a rainfall simulator to produce
uniform artificial rain and has a certain intensity of rainfall.
is The results a rainfall simulator with specifications, Dimensional
framework with a length of 255 cm, width of 125 cm and height of 200 cm of
water distribution systems using a pump of 20 m total hea
Clinical features and survival pattern of central nervous system leukemia in children with acute lymphoblastic leukemia
Infiltration of leukemic cells into the central nervous system (CNS) is one of the causes of neurological disorders in patients with acute lymphoblastic leukemia (ALL) that worsen the prognosis. This retrospective cohort study aimed to review the clinical manifestations of children with CNS leukemia, their survival pattern and the role of early CNS leukemial. The survival curve was developed by Kaplan-Meier method, while the comparison of survival curves was done with log-rank test. Among 128 new ALL patients, 23 (18.0%) patients suffered from CNS leukemia, while 13 (10.2%) suffered from early CNS leukemia and 10 (7.8%) suffered from relapsing CNS leukemia. CNS leukemia was more common in male, in those aged less than 2 years, in those with white blood cell (WBC) count above 50,000/ìl, and in patients type FAB-L2 ALL. The clinical manifestations most commonly found were decrease of consciousness (61%), vomiting (48%), cranial nerve palsy (44%), seizures (39%), and headache (26%). Relapsing CNS leukemia was more common in high risk (12.5%) compared with standard risk leukemia (5.7%). Patients with early CNS leukemia had a lower survival rate than those without early CNS leukemia (p = 0.0005). The percentage of patients with early CNS leukemia surviving up to 3 years was 26%. We conclude that early CNS leukemia could cause low survival ALL patients
An Assessment of Trends in the Extent of Swidden in Southeast Asia
Swidden systems consisting of temporarily cultivated land and associated fallows often do not appear on land use maps or in statistical records. This is partly due to the fact that swidden is a diverse and dynamic land use system that is difficult to map and partly because of the practice of grouping land covers associated with swidden systems into land use or land cover categories that are not self-evidently linked to swiddening. Additionally, in many parts of Southeast Asia swidden systems have changed or are in the process of changing into other land use systems. This paper assesses the extent of swidden on the basis of regional and national sources for nine countries, and determines the pattern of changes of swidden on the basis of 151 cases culled from 67 articles. Findings include (1) a majority of the cases document swidden being replaced by other forms of agriculture or by other livelihood systems; (2) in cases where swiddening is still practiced, fallow lengths are usually, but not always, shorter; and (3) shortened fallow length does not necessarily indicate a trend away from swidden since it is observed that short fallow swidden is sometimes maintained along with other more intensive farming practices and not completely abandoned. The paper concludes that there is a surprising lack of conclusive data on the extent of swidden in Southeast Asia. In order to remedy this, methods are reviewed that may lead to more precise future assessments