scholarly journals Long-Term Temporal Variability of the Freshwater Discharge and Water Levels at Patos Lagoon, Rio Grande do Sul, Brazil

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
G. P. Barros ◽  
W. C. Marques
Keyword(s):  
Ocean Circulation ◽  
Temporal Variability ◽  
Water Levels ◽  
Freshwater Discharge ◽  
Patos Lagoon ◽  
Mean Values ◽  
Physical Forcing ◽  
The Mean ◽  
One Year

The aim of this study is to investigate the importance of freshwater discharge as a physical forcing in Patos Lagoon at timescales longer than one year, as well as identify the temporal variability of the dominant processes in freshwater discharge and water levels along the Patos Lagoon. Due to its proximity to the mouth, the water level at the estuary is influenced by the remote effects associated with the adjacent ocean circulation and wave climatology, reducing the observed correlation. At the lagoonar region a high correlation is expected because interannual data is being used, reducing the influence of the wind. Cross wavelet technique is applied to examine the coherence and phase between interannual time-series (South Oscillation Index, freshwater discharge and water levels). The freshwater discharge of the main tributaries and water levels in Patos Lagoon are influenced by ENSO on interannual scales (cycles between 3.8 and 6 years). Therefore, El Niño events are associated with high mean values of freshwater discharge and water levels above the mean. On the other hand, La Niña events are associated with low mean values of freshwater discharge and water levels below the mean.

LONG-TERM INVESTIGATIONS ON CHEMICAL AND MICROBIAL CHANGES OF A SLIGHTLY OIL POLLUTED BEACH1

1983 ◽  
Vol 1983 (1) ◽  
pp. 477-483 ◽  
Author(s):  
Günter Gassmann ◽  
Wilfried Gunkel
Keyword(s):  
Sandy Beach ◽  
Hydrocarbon Contamination ◽  
Glass Capillary ◽  
Mean Values ◽  
Degrading Bacteria ◽  
Mud Flat ◽  
The Mean ◽  
Overall Ratio ◽  
One Year

ABSTRACT A sandy and muddy beach polluted by Arabian light crude oil in 1974 was investigated in 1974, 1975, and 1981. The shift of the hydrocarbon contamination from the sand to the mud has been determined by infrared spectroscopy and glass capillary gas chromatography. In 14 months, the mean values of the hydrocarbon content in the sandy beach declined from 203 milligrams per liter (mg/l) to 10 mg/l. However, those of the mud flat increased by 300 percent (from 37 mg/l to 108 mg/l). Six years later, the fossil fuel hydrocarbon concentration had decreased to 0.6 mg/l and 8 mg/l for the sandy and muddy beach, respectively. Nevertheless, both areas still reflect the former polluting event. This was established definitively by the trace analysis of acyclic isoprenoid alkanes (norpristane, pristane, phytane) which indicates oil contamination by detection of mature diastereoisomers. The bacteria reflect the fate of the hydrocarbons. The numbers of oil degraders rapidly increased by several orders of magnitude within the first weeks and reached maximum values well above 1011 per liter of sediment. Simultaneously, the overall ratio of oil-degrading bacteria to normal heterotrophs topped 270 percent, decreasing gradually to the normal background value within one year. The highest ratio of oil degraders was found in the sandy beach shortly after the spill and in the muddy beach after several months.

scholarly journals Daily emotional inertia and long-term subjective well-being among people living with HIV

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Marcin Rzeszutek ◽  
Ewa Gruszczyńska ◽  
Ewa Firląg-Burkacka
Keyword(s):  
Positive Emotions ◽  
Satisfaction With Life ◽  
Well Being ◽  
People Living With Hiv ◽  
Subjective Well Being ◽  
Mean Values ◽  
The Mean ◽  
One Year ◽  
Living With Hiv

Abstract Objective The aim of this study was to verify if subjective well-being (SWB) modifies the autoregressive effect of daily emotions and if this emotional inertia predicts long-term changes in SWB among people living with HIV (PLWH). Methods The 131 participants had medically confirmed diagnoses of HIV and were undergoing antiretroviral therapy. They assessed their SWB (satisfaction with life, negative affect, positive affect) twice with an interval of one year. They also took part in a five-day online diary study six months from their baseline SWB assessment and reported their daily negative and positive emotions. Results Results showed that baseline SWB did not modify the emotional carryover effect from one to another. Additionally, after control for baseline SWB, emotional inertia did not predict SWB one year later. However, such an effect was noted for the mean values of daily reported emotions, indicating their unique predictive power over SWB itself. Conclusions This may suggest that emotional inertia does not necessarily provide better information than more straightforward measures of affective functioning.

scholarly journals Relationships between Wind Effect, Hydrodynamics and Water Level in the World's Largest Coastal Lagoonal System

Water ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2209 ◽  
Author(s):  
Oliveira ◽  
Fernandes ◽  
Möller ◽  
García-Rodríguez
Keyword(s):  
Water Levels ◽  
Freshwater Discharge ◽  
Economic Losses ◽  
Wind Effect ◽  
Southern Brazil ◽  
Cell Orientation ◽  
Patos Lagoon ◽  
Adverse Conditions ◽  
The World ◽  
One Year

The Patos-Mirim is the largest coastal limnological system of the world, located in southern Brazil and eastern Uruguay, which encompass over 500 km of coastline. The economical demand for the development of an international waterway brings the need for understanding the Mirim lagoon dynamics and ulterior discharge into Patos lagoon in view of establishing navigation conditions and sustainable development. In this sense, circulation and freshwater discharge dynamics were assessed by running the numerical model TELEMAC-3D for a one-year-long simulation. The model identified the wind direction and intensity as the main combined forcing modulating water circulation and transport between the northern and southern portions and conditioning the recirculation cell orientation. Predominant winds from the S-SW directions could generate adverse conditions for navigation because they would yield low water levels under northwards water transport, thus creating shallow regions for navigation. Under such conditions, the high freshwater discharge coming from the Mirim lagoon would be restricted, and the communication to the Patos lagoon would be sufficiently weakened to prevent navigation activities. Therefore, we recommend that the viability of planning and implementing an international waterway, involving the two countries (Brazil and Uruguay), must take into account wind conditions prior to setting navigation traffic and avoid economic losses.

Comparative Study of effectiveness of mobilization with movement (MWM) and End range mobilization (ERM) techniques in frozen shoulder

2018 ◽  
Vol 4 (4) ◽  
pp. 519-522
Author(s):  
Jeyakumar S ◽  
Jagatheesan Alagesan ◽  
T.S. Muthukumar
Keyword(s):  
Range Of Motion ◽  
Frozen Shoulder ◽  
Type I ◽  
Mean Values ◽  
Functional Activities ◽  
Group A ◽  
The Mean ◽  
Group B

Background: Frozen shoulder is disorder of the connective tissue that limits the normal Range of motion of the shoulder in diabetes, frozen shoulder is thought to be caused by changes to the collagen in the shoulder joint as a result of long term Hypoglycemia. Mobilization is a therapeutic movement of the joint. The goal is to restore normal joint motion and rhythm. The use of mobilization with movement for peripheral joints was developed by mulligan. This technique combines a sustained application of manual technique “gliding” force to the joint with concurrent physiologic motion of joint, either actively or passively. This study aims to find out the effects of mobilization with movement and end range mobilization in frozen shoulder in Type I diabetics. Materials and Methods: 30 subjects both male and female, suffering with shoulder pain and clinically diagnosed with frozen shoulder was recruited for the study and divided into two groups with 15 patients each based on convenient sampling method. Group A patients received mobilization with movement and Group B patients received end range mobilization for three weeks. The outcome measurements were SPADI, Functional hand to back scale, abduction range of motion using goniometer and VAS. Results: The mean values of all parameters showed significant differences in group A as compared to group B in terms of decreased pain, increased abduction range and other outcome measures. Conclusion: Based on the results it has been concluded that treating the type 1 diabetic patient with frozen shoulder, mobilization with movement exercise shows better results than end range mobilization in reducing pain and increase functional activities and mobility in frozen shoulder.

scholarly journals Evaluation of Physicochemical Characteristics of Surface Water from Orashi River, Rivers State, Southern Nigeria

2021 ◽  
Vol 8 (2) ◽  
pp. 105-122
Author(s):  
Onisogen Simeon Edori ◽  
Enize Simeon Edori
Keyword(s):  
Suspended Solids ◽  
Oxygen Demand ◽  
Physicochemical Characteristics ◽  
Total Dissolved Solids ◽  
Standard Laboratory ◽  
Mean Values ◽  
Drinking Purposes ◽  
The Mean ◽  
One Year ◽  
Rivers State

Water samples were collected from four different stations bimonthly from the Orashi River for a period of one year. The samples were collected from the shores of selected communities along the Engenni axis of the river. The samples were treated and analyzed according to standard laboratory and analytical procedures for water physicochemical parameters. The parameters examined were pH, Salinity, chlorides (Cl-), Conductivity, total dissolved solids (TDS), total suspended solids (TSS) turbidity, temperature, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), nitrates (NO3-), sulphate (SO42-) and phosphates (PO43-). The results showed that the mean values of the evaluated parameters were; pH (6.91±0.11), salinity (9.79±0.27 mg/L), Cl (6.25±0.25 mg/L), conductivity (29.66±1.20 µS/cm), TDS (17.66±2.08 mg/L), TSS (16.83±1.15 mg/L), turbidity (11.84±1.50 mg/L), temperature (28.16±0.12 oC), DO (5.91±0.18 mg/L), BOD (7.30±0.60 mg/L), COD (9.41±0.70 mg/L), NO3- (3.42±0.27 mg/L), SO42- (1.15±0.56 mg/L) and PO43- (15.65±5.76 mg/L). The results of the different parameters showed that all of them fall within the WHO acceptable limit except turbidity, DO and BOD that were not within the recommended range, then COD and phosphates that were either within or above the recommended values at different instances. Based on the findings of this work, the water may not be particularly suitable for drinking purposes, but can be used for other household functions that do not require consumption and also for irrigation. Keywords: water, physicochemical property, human activity, environment, contamination

scholarly journals One-Year Visual and Refractive Outcomes following LASIK for Myopia and Myopic Astigmatism with MEL 90 versus Schwind Amaris 750S Excimer Laser: A Comparative Study

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Sheetal Brar ◽  
Dishitha P. Rathod ◽  
C. R. Roopashree ◽  
Sri Ganesh
Keyword(s):  
Comparative Study ◽  
Clinical Outcomes ◽  
Excimer Laser ◽  
Infectious Keratitis ◽  
Safety And Efficacy ◽  
Refractive Outcomes ◽  
The Mean ◽  
One Year ◽  
Myopic Astigmatism

Purpose. To compare clinical outcomes following LASIK for myopia performed with MEL 90 vs. Schwind Amaris 750S excimer laser. Methods. Data were collected retrospectively for patients who underwent Femto-LASIK, using the MEL 90 and Schwind Amaris 750S excimer laser for correction of myopia and myopic astigmatism within the range of −1.00 to −10.00 D SE from January 2013 till June 2018. Outcomes were analysed at 12 months for safety, efficacy, enhancement rate, and long-term complications. Results. A total of 328 eyes of 328 patients were analysed. One hundred and sixty-three eyes were treated with Schwind Amaris and the remaining 165 eyes with the MEL 90 laser. Twelve months postoperatively, the mean UDVA, CDVA, residual SE, and cylinder in the Amaris group were −0.10 ± 0.09 logMAR, −0.14 ± 0.06 logMAR, −0.21 ± 0.22 D, −0.13 ± 0.18 D versus −0.05 ± 0.07 logMAR, −0.09 ± 0.08 logMAR, −0.23 ± 0.23 D, and −0.14 ± 0.21 D for the MEL 90 group ( p values >0.05). For the Amaris group, safety and efficacy indices were 1.12 and 1.02, whereas for the MEL 90 group, these indices were 1.08 and 1.00, respectively. No eye in either group had any postop flap-related complications, infectious keratitis, diffuse lamellar keratitis, or keratectasia. Two eyes in the Amaris and 4 eyes in MEL 90 group required enhancement for the progression of myopia. Conclusion. At 12 months, both Schwind Amaris 750S and MEL 90 lasers demonstrated comparable clinical outcomes for myopic LASIK in a single surgeon setting.

Application of femtolaser-assisted phacoemulsification in combined pathology of cataract and glaucoma

2021 ◽  
pp. 18-21
Author(s):  
A.P. Voznyuk ◽  
◽  
S.I. Anisimov ◽  
S.Y. Anisimova ◽  
L.L. Arutyunyan ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Biomechanical Properties ◽  
Mean Values ◽  
Long Term Follow Up ◽  
The Mean ◽  
Group 2 ◽  
Observation Period ◽  
Group 1

Purpose. To evaluate the efficacy and safety of femtolaser-assisted phacoemulsification in glaucomatous eyes in the long-term follow-up. Materials and methods. A retrospective analysis of the results of the surgical treatment of patients with combined cataract and glaucoma pathology was analyzed. The patients were divided into groups depending on the method of surgical intervention: 1) phacoemulsification with femtolaser support (26 eyes, 23 patients); 2) phacoemulsification (36 eyes, 30 patients); Results. Before surgery, there were no statistically significant differences in IOP and corneal hysteresis (СН) between groups 1 and 2. The mean values of IOP cc, IOP g and СН of group 1 before surgery were 22.7±6.1 mm Hg, 20.9±6.9 mm Hg, 8.5±1.6 mm Hg; 2 group – 22.9±8.7 mm Hg, 21.6±8.9 mm Hg, 8.9±1.6 mm Hg respectively. Average values of IOP cc, IOP g and CН 5 years after the surgical treatment in group 1 were 15.3±1.2 mm Hg, 14.4±3.4 mm Hg, 9.6±4.2 mm Hg; in group 2 – 18.0±4.2 mm Hg, 16.1±4.2 mm Hg, 8.8±2.2 mm Hg respectively. In both groups, stabilization of IOP and CH indices was noted, which remained throughout the entire observation period, which shows the normalization of the biomechanical properties of the corneoscleral membrane of the eye in the long-term postoperative period. Conclusion. Femtolaser accompaniment of phacoemulsification is an effective and safe method of cataract surgery for combined pathology. Key words: femtolaser, cataract, glaucoma, phacoemulsification.

VARIATIONS IN THE KARA SEA LEVEL, THEIR STERIC FACTORS, AND SOLAR RADIATION DURING 1993-2018

2021 ◽  
pp. 38-52
Author(s):  
A.V. KHOLOPTSEV ◽  
◽  
S.A. PODPORIN ◽  
V.A. SAFONOV ◽  
◽  
...  
Keyword(s):  
Solar Radiation ◽  
Sea Level ◽  
Water Layer ◽  
Kara Sea ◽  
Mean Values ◽  
Mean Intensity ◽  
Steric Factors ◽  
The Mean ◽  
Long Term Variations

The GLORYS12v.1 and ERA5 reanalyses for different months are used to study a relationship between long-term variations in the monthly mean values of sea level in different areas of the Kara Sea and their steric factors during 1993-2018. The areas of the sea were identified where the relationships between these changes and variations in the mean temperature and salinity of the upper quasihomogeneous water layer, as well as the variations in the monthly mean intensity of their insolation, are statistically significant.

STUDIES ON FOLIC ACID IN INFANCY

PEDIATRICS ◽  
1964 ◽  
Vol 33 (4) ◽  
pp. 507-511
Author(s):  
Yehuda Matoth ◽  
Ariela Pinkas ◽  
Rina Zamir ◽  
Fouad Mooallem ◽  
Nathan Grossowicz
Keyword(s):  
Folic Acid ◽  
Folinic Acid ◽  
Economic Status ◽  
Mean Value ◽  
First Year ◽  
Mean Values ◽  
Healthy Infants ◽  
Initial Drop ◽  
The Mean ◽  
One Year

The level of folic and folinic acid in whole blood was assayed in 373 healthy infants from birth to one year. Folic acid was high at birth and dropped gradually over the first 8 postnatal weeks. The mean value for the remainder of the first year was significantly below the adult mean. Folinic acid was likewise high at birth and dropped parallel with the folic acid. However, following the initial drop, folinic acid mean values remained well above the adult mean. Folic and folinic acid values were higher in breast-fed than in artificially fed infants and lower in infants whose economic status was poor than in babies belonging to families of higher income.

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