Chronic Arsenic Poisoning in the North of Mexico

1983 ◽  
Vol 2 (1) ◽  
pp. 121-133 ◽  
Author(s):  
Mariano E. Cebrian ◽  
Arnulfo Albores ◽  
Manuel Aguilar ◽  
Enrique Blakely

1 We compared the prevalence of signs and symptoms of chronic arsenic poisoning in two rural populations. 2 The arsenic concentration in the drinking water of the exposed population was 0.41 mg/l, and 0.007 mg/l in the control population. 3 The arsenic was present mainly (70%) in its pentavalent form. 4 The objective was to quantitate health effects and risks derived from chronic ingestion of arsenic in contaminated water. 5 In the exposed population, 21.6% of the sample, showed at least one of the cutaneous signs of chronic arsenic poisoning against 2.2% in the control town. 6 Non-specific symptoms were more prevalent in the exposed population and they occurred more frequently in those individuals with skin signs. 7 The relative risk of suffering a particular manifestation of poisoning, ranged from 1.9 to 36 times higher in the exposed population. 8 We estimated the risks above mentioned, which were derived from exposure to minute quantities of arsenic in a known proportion of its oxidation states during a life time period.

1992 ◽  
Vol 6 (3) ◽  
pp. 150-152 ◽  
Author(s):  
Hjordis M Foy ◽  
Samran Tarmapai ◽  
Poovanon Eamchan ◽  
Orapun Metdilogkul

Endemic arsenic poisoning manifested by palmoplantar keratoderma and hyperpigmentation was surveyed in a village in a tin and wolfram mining area in southern Thailand where two cases of Bowen's carcinoma had occurred. Nine percent of examined adults randomly selected from 58 households were found to have skin manifestations of arsenic poisoning. Also, children with typical palmoplantar keratoderma were recognized, the youngest being four years old. A seven-year-old with severe keratoderma also had neurological manifestations and appeared mentally retarded. Arsenic concentration in shallow wells varied between 0.02-2.7 mg/1 (average 0.82), and piped water had 0.07 mg/1. A major source of the contamination of ground water probably was slag heaps positioned next to a stream that led the village.


Crisis ◽  
2005 ◽  
Vol 26 (1) ◽  
pp. 4-11 ◽  
Author(s):  
E. Kinyanda ◽  
H. Hjelmeland ◽  
S. Musisi

Abstract. Negative life events associated with deliberate self-harm (DSH) were investigated in an African context in Uganda. Patients admitted at three general hospitals in Kampala, Uganda were interviewed using a Luganda version (predominant language in the study area) of the European Parasuicide Study Interview Schedule I. The results of the life events and histories module are reported in this paper. The categories of negative life events in childhood that were significantly associated with DSH included those related to parents, significant others, personal events, and the total negative life events load in childhood. For the later-life time period, the negative life events load in the partner category and the total negative life events in this time period were associated with DSH. In the last-year time period, the negative life events load related to personal events and the total number of negative life events in this time period were associated with DSH. A statistically significant difference between the cases and controls for the total number of negative life events reported over the entire lifetime of the respondents was also observed, which suggests a dose effect of negative life events on DSH. Gender differences were also observed among the cases. In conclusion, life events appear to be an important factor in DSH in this cultural environment. The implication of these results for treatment and the future development of suicide interventions in this country are discussed.


1990 ◽  
Vol 12 (1) ◽  
pp. 89-99
Author(s):  
Akihide TANIMOTO ◽  
Tetsuo HAMADA ◽  
Hikaru KANESAKI ◽  
Kohji MATSUNO ◽  
Osamu KOIDE

Author(s):  
Sirous F. Yasseri ◽  
Jake Prager

This paper describes a recurrence law for explosions. The proposed recurrence law fits quite well to the historic explosion data in residential buildings as well as to the data on offshore installations in the North Sea. Generally quantified explosion risk assessment is performed for offshore installations, since it is believed historic data does not correspond to a specific installation and it may not be appropriate for use in performance based explosion engineering, which may in itself require realistic load description of explosion recurrence. The goodness-of-fit of the model for explosion occurrence data obtained using the quantified risk assessment method is also discussed. The paper then introduces the concept of performance-based design, which is an attempt to design structures with predictable performance under explosion loading. Performance objectives such as life safety, collapse prevention, or immediate resumption of operation are used to define the state of an installation following a design explosion. The recurrence law is then used to associate a level of explosion load to each limit state using a desirable level of probability of exceedance during the installations life time.


2021 ◽  
Author(s):  
Stacey Frisch ◽  
Sarah Jones ◽  
James Willis ◽  
Richard Sinert

BACKGROUND COVID-19, an illness caused by the novel coronavirus SARS-CoV-2, affected many aspects of healthcare worldwide in 2020. From March to May of 2020, New York City (NYC) experienced a large surge of cases. OBJECTIVE The authors aimed to characterize the amount of illness experienced by residents and fellows in 2 NYC hospitals during this time period. METHODS This was a cross-sectional observational study. An IRB-exempt survey was distributed to emergency medicine housestaff in May 2020 and submissions were accepted through August 2020. RESULTS 64 residents and fellows responded to our survey (a 62% response rate). 42% of responders tested positive for SARS-CoV-2 antibodies. Most residents experienced symptoms that could be consistent with COVID-19 however few received PCR testing. Fevers and/or chills along with loss of smell and/or taste were the most specific symptoms for COVID-19, with p-values <0.05. All 13 housestaff who reported no symptoms during the study period tested negative for SARS-CoV-2 antibodies. CONCLUSIONS Our study demonstrated that the rate of COVID-19 illness among emergency department housestaff is much higher than previously reported. Further studies are needed to characterize illness among medical staff in emergency departments across the nation. The high infection rate among emergency medicine trainees stresses the importance of supplying adequate PPE for healthcare professionals.


Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Susan Quimby ◽  
Javicia Peterson-Cole

Background: Stroke patients and their caregivers require formalized education, medications, testing and rehabilitation to assist in prevention of recurrence and of post-stroke complications for optimal outcomes. Objective: The purpose of this program was to evaluate the effect of the Stroke Transition Discharge Center (STDC) on stroke readmission. Methods: The Advanced Practice Nurses (APN) see all stroke and TIA patients one week after discharge from hospital to home or one week after discharge from rehab to home. During the hour encounter, the APN reviews medications, test results, signs and symptoms of stroke, complete education including patient specific risk factors and ensure appropriate follow up. The APN coordinates and facilitates multiple services and disciplines impacting the patient, assuring the most efficient and effective goal-directed activities are provided at the right time and in partnership with all other disciplines providing care. Results: Implementation of the STDC enhances patient outcomes and improves 30-day readmission rates. Prior to our intervention, the readmission rate was 15.3%. After the implementation of the STDC, there was a 61% reduction in 30-day readmission rates to 6%, which is significantly below the hospital system benchmark of 11%. There was an increase in the readmission rate in the first two quarters of 2016 noted. There is an inverse correlation with the number of patients seen in the STDC during the same time period. Further analysis demonstrates that only one readmission in this time period had been seen prior in the STDC. Conclusion: Implementing the Stroke Transition Discharge Center demonstrated a dramatic reduction in 30-day readmission rates. Our data suggests that utilization of the clinic and participation by the patients has a direct and inverse effect on readmissions. Further data will need to be collected to determine if this is a sustained response.


2019 ◽  
Vol 6 (6) ◽  
pp. 2119
Author(s):  
Amar Chand ◽  
Parikshit Malhotra ◽  
Deepesh Barall ◽  
Sudhir Singh ◽  
Garima Thapa

Background: The incidence of gastric cancer varies in different parts of the world and among various ethnic groups. Himachal Pradesh, located in the north of India, has different customs, food habits, life-style and diverse ethnic groups. We undertook this study to analyze the clinical presentations and pathological characteristics of stomach cancer patients in the biggest referral center in the state.Methods: All endoscopic biopsy proven cases of carcinoma stomach attending the OPD or admitted in the general surgery ward between July 2014 to June 2015, went through a thorough clinical examination, routine and diagnostic investigations and endoscopic biopsies for histopathological confirmation.Results: The study included 62 patients of adenocarcinoma stomach with maximum cases between 45 to 65 yrs age, more in males (2:1). Borrmann type II was most common macrocsopic appearance followed by type IV. As per Lauren classification, 36 were of intestinal, 24 diffuse and 2 had mixed type. 10 patients had well differentiated, 28 moderately differentiated and 24 patients had poorly differentiated tumors. Anorexia, abdominal pain, weight loss, nausea and vomiting was the most common symptoms seen in antral lesions (distal) and anemia was the most common sign followed by dehydration, mass abdomen and ascitis.Conclusions: The study has added to the literature of clinical and pathological presentation and relation of signs and symptoms to the site of occurrence of gastric carcinoma from the hilly and rural state of northern India. 


2018 ◽  
Author(s):  
Haibo Bi ◽  
Yunhe Wang ◽  
Xiuli Xu ◽  
Yu Liang ◽  
Jue Huang ◽  
...  

Abstract. Sea ice export through Baffin Bay plays a vital role in modulating the meridional overturning process in the downstream Labrador Sea. In this study, satellite-derived sea ice products are explored to obtain the sea ice flux (SIF) through three passages (referred to as A, B, and C for the north, middle, and south passages, respectively) of Baffin Bay. Over the period 1988–2015, the average annual (October–September) sea ice area export is 555 × 103 km2, 642 × 103 km2, and 551 × 103 km2 through passages A, B, and C, respectively. These amounts are less than that observed through the Fram Strait (FS, 707 × 103 km2). Clear increasing trends in annual sea ice export on the order of 53.1 × 103 km2/de and 43.2 × 103 km2/de are identified at passages A and B, respectively. The trend at the south passage (C), however, is slightly negative (−13.3 × 103 km2/de). The positive trends in annual SIF at A and B are primarily attributable to the increase during winter months, which is triggered by the accelerated sea ice motion (SIM) and partly compensated by the reduced sea ice concentration (SIC). During the summer months, the sea ice export through each Baffin Bay passage usually presents a negative trend, primarily because of the decline in SIM and it is further enhanced by a dramatic decrease in SIC. A significant positive trend in the net SIF (i.e. net ice inflow) is found for between the passages A (or B) and C at 54.5 (or 64.2) × 103 km2/de. Therefore, Baffin Bay may have presented a greater convergence of ice. Overall, the connection between Baffin Bay sea ice export and the North Atlantic Oscillation (NAO) is tenuous, although the correlation is sensitive to variations in the selected time period. In contrast, the association with the cross-gate sea level pressure difference (SLPD) is robust in Baffin Bay (R = 0.69–0.71 depending on the passages), but relatively weaker compared with that in the FS (R = 0.74). Baffin Bay is bounded by Baffin Island to the west and Greenland to the east, thus, sea ice drift is not converted to the free state observed in the FS.


2003 ◽  
pp. 55-75 ◽  
Author(s):  
Ann Forsten ◽  
Vesna Dimitrijevic

A review of the fossil horses of the genus Equus from the central Balkans, a mountainous area comprising Serbia and Montenegro, is presented in this paper. The time period covered by the finds is from the late Early to and including the Late Pleistocene, but the record is not complete: the dated finds are Late Pleistocene in age, while Early and Middle Pleistocene are poorly represented. The horses found resemble those from neighbouring countries from the same time period, probably showing the importance of river valleys as migration routes. The Morava River valley runs in a roughly south-to-north direction, connecting, via the Danube and Tisa River valleys the Hungarian Pannonian Plain in the north with northern Greece in the south, via the Vardar River valley in Macedonia. In Pleistocene, large mammals, including horses, probably used this route for dispersal.


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