scholarly journals Estimating simazine treated area in watersheds based on annual stream loads

Author(s):  
R.N. Lerch ◽  
C.D. Willett
Keyword(s):  
VASA ◽  
2017 ◽  
Vol 46 (6) ◽  
pp. 477-483
Author(s):  
Robert Karl Clemens ◽  
Frederic Baumann ◽  
Marc Husmann ◽  
Thomas Oleg Meier ◽  
Christoph Thalhammer ◽  
...  

Abstract. Background: Congenital venous malformations are frequently treated with sclerotherapy. Primary treatment goal is to control the often size-related symptoms. Functional impairment and aesthetical aspects as well as satisfaction have rarely been evaluated. Patients and methods: Medical records of patients who underwent sclerotherapy of spongiform venous malformations were reviewed and included in this retrospective study. The outcome of sclerotherapy as self-reported by patients was assessed in a 21 item questionnaire. Results: Questionnaires were sent to 166 patients with a total of 327 procedures. Seventy-seven patients (48 %) with a total of 159 procedures (50 %) responded to the survey. Fifty-seven percent of patients were male. The age ranged from 1 to 38.1 years with a median age of 16.4 years. The lower extremities were the most common treated area. Limitations caused by the venous malformation improved in the majority of patients (e.g. pain improvement 87 %, improvement of swelling 83 %) but also worsening of symptoms occurred in a minority of cases. Seventy-seven per cent would undergo sclerotherapy again. Conclusions: Sclerotherapy for treatment of venous malformations results in significant reduction of symptoms. Multiple treatments are often needed, but patients are willing to undergo them.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Giuseppe Querques ◽  
Riccardo Sacconi ◽  
Francesco Gelormini ◽  
Enrico Borrelli ◽  
Francesco Prascina ◽  
...  

AbstractThere is a lack of treatment aimed at the regression of reticular pseudodrusen (RPD) secondary to age-related macular degeneration (AMD). The aim of this prospective, pilot study is to evaluate the safety and short-term efficacy of subthreshold laser treatment (SLT) in patients affected by RPD secondary to dry AMD (dAMD). Twenty eyes of 20 patients (mean age 78.4 ± 6.8 years) with RPD secondary to dAMD were prospectively enrolled. All patients were treated in an extrafoveal area of 1.27 mm2 using end-point management yellow subthreshold laser and followed for 3 months. Best-corrected visual acuity was 0.140 ± 0.09 LogMAR at the baseline and no changes were observed during the follow-up (p = 0.232). No significant worsening was disclosed before and after the treatment analyzing the macular sensitivity of the treated area (p = 0.152). No topical and/or systemic side effects were disclosed during the 3-month follow-up. The distribution among the RPD stages changed after the treatment (p < 0.001). In detail, in the treated area, we observed a significant increase in the number of Stage 1 RPD during the follow-up (p = 0.002), associated with a significant decrease of Stage 3 RPD (p = 0.020). Outer nuclear layer (ONL) thickness analysis showed a significant increase after the treatment associated with RPD regression (p = 0.001). End-point management SLT appears a safe treatment for RPD secondary to dAMD, showing short-term safety outcomes. Our results suggest that SLT could be effective in inducing a RPD regression in terms of RPD stage and ONL thickening.


Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 689
Author(s):  
Valeria Ancona ◽  
Ida Rascio ◽  
Giorgia Aimola ◽  
Claudia Campanale ◽  
Paola Grenni ◽  
...  

A Monviso clone has been applied to promote PCB degradation in a soil historically contaminated by polychlorinated biphenyls (PCBs) and heavy metals (HMs). The multi-contaminated area is located in Southern Italy. PCBs, HMs, and the soil microbial community (abundance, viability, and structure) were analysed in selected plots of the poplar-treated area. At 900 days after poplar planting, chemical analyses showed that PCBs and most of HMs diminished under the Italian legal limits. The overall results suggest that the poplar clone was effective in promoting PCB rhizodegradation and HM phytostabilization. Organic carbon content increased strongly in the rhizosphere of the planted plots. Microbiological results highlighted an overall increase in microbial abundance, cell viability, and the presence of bacterial groups involved in PCB degradation. The poplar-based bioremediation technology is a nature-based solution able to promote the recovery of soil quality in terms of contaminant removal, increase in organic carbon, and stimulation of autochthonous bacterial groups able to transform PCBs.


Author(s):  
Hyen Woo Lee ◽  
Sung ok Hong ◽  
Heeyeon Bae ◽  
Youngjin Shin ◽  
Yu-jin Jee

Abstract Background The pedicled buccal fat pad has been used for a long time to reconstruct oral defects due to its ease of flap formation and few complications. Many cases related to reconstruction of defects in the maxilla, such as closing the oroantral fistula, have been reported, but cases related to the reconstruction of defects in the mandible are limited. Under adequate anterior traction, pedicled buccal fat pad can be a reliable and effective method for reconstruction of surgical defects in the posterior mandible. Case presentation This study describes two cases of reconstruction of surgical oral defects in the posterior mandible, all of which were covered by a pedicled buccal fat pad. The size of the flap was sufficient to perfectly close the defect without any tension. Photographic and radiologic imaging showed successful closure of the defects and no problems were noted in the treated area. Conclusion In conclusion, the pedicled buccal fat pad graft is a convenient and reliable method for the reconstruction of surgical defects on the posterior mandible.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hiroki Hihara ◽  
Ryo Tagaino ◽  
Jumpei Washio ◽  
Kittipong Laosuwan ◽  
Dimas Prasetianto Wicaksono ◽  
...  

Abstract Background Removal of oral biofilm from the oral mucosa is essential for preventing risk of respiratory and gastrointestinal infection in elderly people. Currently, no device is available which can remove oral biofilm from oral mucosa effectively and safely. Therefore, the effectiveness and safety of the Micro Scale Mist UNIT (MSM-UNIT), a newly developed dental plaque removal device utilizing high speed sprays of fine water droplets, were evaluated for biofilm removal, including the rate and surface roughness for simulated tooth surface and mucous membrane. Methods Simulated tooth and oral mucosa coated with an artificial biofilm of Streptococcus mutans were used for evaluation of effectiveness, with uncoated substrates as the controls. The MSM-UNIT and a conventional air ablation device were operated under recommended instructions. The effectiveness was evaluated from the rate of removal of the biofilm, and the safety was evaluated from the damage observed by scanning electron microscope and surface roughness. Results The biofilm removal rate of the MSM-UNIT was significantly higher than that of AIRFLOW. Little damage was observed in the area treated by the MSM-UNIT. The surface roughness of the MSM-UNIT treated area on simulated tooth surface and oral mucosa showed no significant difference to the control area. In contrast, cracks and powder were observed in the area treated by AIRFLOW. In particular, the surface roughness of the AIRFLOW treated area for Toughsilon was significantly larger than that of the control. Conclusions The MSM-UNIT could be used safely and effectively for removing biofilm not only on simulated tooth surfaces but also simulated mucous membrane. The MSM-UNIT has no harmful effect on teeth or oral mucosa, and may be used for comprehensive oral care for patients during nursing care and the perioperative period.


2000 ◽  
Vol 1 (4) ◽  
pp. 205-212 ◽  
Author(s):  
A. Gee ◽  
D. Moffitt ◽  
M. Churn ◽  
R.D. Errington

Background: Radiotherapy skin reactions have been well documented in the past. Until recently, washing of the treated area and the use of perfumed products that contain metals has not been advocated during treatment. The aims of this study were to assess the skin reactions of patients using a non-metallic deodorant and to see whether there were any psychological benefits from being able to use the deodorant.Method: 41 women attending for radiotherapy to either the breast or breast and axilla were recruited into the trial. They were randomised into one of two groups. Complete data was obtained for 36 patients. 20 patients used the deodorant and 16 did not. Any skin reactions noted were recorded on a weekly basis. Patients were also asked to complete a questionnaire relating to feelings and activities and to comment on the deodorant if they had used it.Results: Skin reactions did seem to be slightly worse in the patients using deodorant, and it was only in this group of patients that axillary reactions were noted. However, neither of these results were statistically significant. The use of the deodorant did not have any impact on the psychological well being of the patients, but patients using it had found it pleasant to use and the majority said that they would use it again.Conclusion: Further study is indicated to look at skin reactions using the deodorant with a larger sample of patients.


1984 ◽  
Vol 62 (8) ◽  
pp. 1513-1520 ◽  
Author(s):  
Yves Bouchard ◽  
Conrad Cloutier

The parasitoid Aphidius nigripes spent more time searching on potato plants previously infested with aphids than on fresh plants, suggesting the presence of searching stimulants on infested plants. Water extracts of aphid honeydew applied to the surface of foliage or to filter paper discs increased searching time and affected the locomotory behavior of parasitoids. When crossing a honeydew-treated area on filter paper, female parasitoids exhibited arrestment, antennal examination, abdominal protraction, reduced walking speed, and increased turning. Upon losing contact with honeydew-contaminated substrate, parasitoids often exhibited a klinotactic response which drove them back to the treated area. The time spent by individual parasitoids within a honeydew-treated area on filter paper decreased with successive visits, but the initial response level was restored when the insect was prevented from contacting honeydew for 1 h. The retention response exhibited by parasitoids contacting a honeydew-treated area increased with honeydew concentration, but levelled off at high concentrations. Naive parasitoids were more responsive to the retention effect of honeydew than experienced individuals.


2015 ◽  
Vol 19 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Prescilia Isedeh ◽  
Ahmed Al Issa ◽  
Henry W. Lim ◽  
Smita S. Mulekar ◽  
Sanjeev V. Mulekar

Background Patients with segmental vitiligo (SV), unlike those with nonsegmental vitiligo (NSV), have a more predictable course and are more responsive to surgery. Objective To report 10 patients with SV treated with the melanocyte-keratinocyte transplantation procedure (MKTP), who responded with unusual responses not previously reported in the literature. Methods This is a retrospective, observational study that reports 10 patients with SV who underwent the MKTP between May 2003 and May 2012. Results Two patients had successful repigmentation after split-thickness skin grafting after failure of the MKTP. Two patients developed a hypopigmented ring at a margin of the MKTP-treated area. One patient had complete repigmentation after a second MKTP. Two patients developed koebnerization of the recipient site. Three patients developed new vitiligo patches in previously unaffected areas after the MKTP. Conclusions Uncommon and even suboptimal responses can occur following the MKTP in SV patients. There is a need for studies to provide better understanding and outcomes for SV patients undergoing the MKTP.


2011 ◽  
Vol 1385 ◽  
pp. 182-191 ◽  
Author(s):  
Nandor Ludvig ◽  
Hai M. Tang ◽  
N. Sertac Artan ◽  
Piotr Mirowski ◽  
Geza Medveczky ◽  
...  

Author(s):  
Siwi Pramatama Mars Wijayanti ◽  
Devi Octaviana ◽  
Sri Nurlaela
Keyword(s):  

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