bluuebunny/crossref_metadata_2025 huggingface dataset:
PROGRESSIVE ELECTROTECHNOLOGIES FOR INCREASING PRODUCTIVITY OF ANIMALS
Authors: Кондратьева Надежда , Kondrateva Nadezhda , Овчукова Светлана , Ovchukova Svetlana , Кириллов Николай , Kirillov Nikolay , Белов Валерий , Belov Valeriy , Большин Роман , Bol'shin Roman
Published: June 2018

The article deals with the impact of various harmonic vibrations of the musical range on the productivity (yield) of farm animals. Intensification of animal husbandry is impossible without automation and mechanization of production. Along with this, the use of machine milking for cattle (cattle) often becomes another cause of mass animal diseases. For example, mastitis, along with numerous other causes, is often caused by milking machines, which because of their uniformity do not always correspond to both size and shape of the mammary gland of different cows. The relevance of this issue is increasing in connection with the intensification of modern livestock and the replacement of the relationship “man-animal” to the more rigid “man-machine-animal” relationship. At the same time, we must remember that the cow - a creature extremely pedantic, easily irritable, knows its milkmaid well, and it is only necessary to replace this milkmaid with another one, as I immediately begin to fall down. To reduce the stress state of cattle, it is possible to use, for example, classical music, which leads to an increase in the amount of milk in mammals. Together with this, under the influence of rock music, it drops sharply. This influence is explained by the fact that different ranges of acoustic harmonic oscillations resonate with different parts of the brain or organs of the body. We studied the influence of four types of musical works (tracks), differing from each other by the intensity of low, medium and high frequencies. These are works by P.I. Tchaykovskiy, A. Mozart, Indian tracks and works performed on the violin. Studies have shown that there is a difference in the milk yield obtained in the control, as well as in the use of musical works. The greatest effect was obtained using the works of A. Mozart, consisting in increasing the milk yield by 15 ... 18% compared with the control. The carried out technical and economic calculations confirmed the profitability of the proposed measures for the application of harmonic variations in the musical range to increase the productivity of Holstein cows.
MAIN PARAMETERS OF TRACTOR K-424 (KIRYUSHA) WORK IN THE COMPOSITION OF THE APERRY UNIT IN THE CONDITIONS OF ADAPTIVE LANDSCAPE AGRICULTURE
Authors: Мардарьев Сергей , Mardar'ev Sergey , Акимов Александр , Akimov Aleksandr , Медведев Владимир , Medvedev Vladimir , Зайцев Петр , Zaycev Petr , Казаков Юрий , Kazakov Yuriy , Юнусов Губейдулла , Yunusov Gubeydulla , Ларкин Сергей , Larkin Sergey
Published: June 2018

A method for calculating the optimal parameters of soil-processing aggregates is proposed. In particular, the optimal parameters for the operation of the new K-424 Kiryusha Russian tractor in adaptive landscape farming are given. As is known, when studying the methods of increasing the efficiency of arable aggregates, it is necessary to consider the soil as an object of machining, which is characterized by hardness, mechanical composition, specific resistance, stickiness, plasticity, humidity, resistance to various deformations, coefficients of external and internal friction, stony, etc. Many researchers found that one of the main factors affecting the technological process of soil cultivation is its hardness. The spatial variability of the soil hardness of the field can be represented in the form of statistical characteristics or by mapping in isolines. The method of representing the spatial variability of the soil hardness of the field by the statistical method consists in establishing the hardness of the soil as a random variable. This method has a number of drawbacks, since it is required to repeatedly measure the studied quantities at the same points of the field, which is not always possible. Therefore, it is expedient to present the spatial variability of the soil hardness of the field in the form of maps containing isolines of soil hardness. Thus, the analysis of research on the operation of arable aggregates has shown that the most general relationship between performance indicators and operating conditions is manifested in their potential performance characteristics (PPC). The PPC combines the potential traction and performance characteristics of tractors and, in relation to the unit, represent the curves of changes in productivity and specific fuel consumption, depending on the individual parameters of its operation.
RESULTS OF INVESTIGATION OF COMPACTION OF HOPS INTERMEDIARY BY MOTORS OF TRACTORS
Authors: Смирнов Петр , Smirnov Petr , Пушкаренко Николай , Pushkarenko Nikolay , Акимов Александр , Akimov Aleksandr , Васильев Александр , Vasil'ev Aleksandr , Андреев Роман , Andreev Roman , Юнусов Губейдулла , Yunusov Gubeydulla , Казаков Юрий , Kazakov Yuriy
Published: June 2018

Based on experimental studies, a technique was proposed for comparing the areas of compaction by tractor propulsors in field conditions and in the aisle interval, the zones of inefficient and intensive use of the hopper space were determined and the solution of the problem of the optimization of the aisle zones was given. The results of experimental studies of the density of soil composition on hop crops are summarized in caterpillar compaction (LLC “Agrokhmel” of Vournarsky District, Chuvash Republic) and wheeled tractors (KOPKh “Leninskaya iskra” of Yadrinsky District, Chuvash Republic). In the first case, the T-54B tracked tractor was used, and in the second - the MTZ-921 wheeled tractor. The soils under the hops in LLC “Agrokhmel” are predominantly dark gray forest soils with an average humus content of 4.1% at a depth of 0.2 m, in KOPKh “Leninskaya iskra” - gray forest with a humus content of 2.9% (at a depth of 0, 2 m). According to the results of the implementation of soil sections on the hop-growers of the Chuvash Republic, it has been established that at the depth of the arable layer 0 ... 0.3 m there are no completely hop roots between traces of tractor passage. Analyzes of shear vertical deformation under the trail of the tractor’s wheel and its propagation along the depth show that after a threefold passage along the same trail, the displacement of soil layers practically ceases, while at the same time, in modern hone-growing technologies, up to 12 ... 14 passes intercoupling. To improve the conditions for growing hops, a quantitative reduction in the blocked zone of the hop-crop intervals is necessary. The study found that the density of the composition of the soil active hop under the tracks of the tractor T-54B is greater than under the wheel tractor MTZ-921. The resulted analytical decisions have shown that the zone of intensive usage of the hop-crop spacing more than 60% is achieved with the use of tractors T-54B and T-25A with the smallest rim when planting the hop sprocket with a spacing of 3.33 m.
FORMATION OF REPORTING IN SUSTAINABLE DEVELOPMENT SPHERA WITH APPLICATION OF INFORMATION TECHNOLOGIES
Authors: Клычова Гузалия , Klychova Guzaliya , Закирова Алсу , Zakirova Alsu , Юсупова Альфия , Yusupova Al'fiya , Камилова Эльвира , Kamilova Elvira
Published: June 2018

In the article general principles of preparation of reporting in the field of sustainable development are considered, recommendations are formulated for the formation of non-financial reporting, using the mechanisms, contained in the computer accounting software of “1C”. The research methodology is based on application of such general scientific methods, as analysis, system approach, comparison, data compilation. Within the framework of the developed recommendations, additional accounts have been proposed for accounting: the costs of acquiring and constructing fixed assets for nature protection purposes; current costs associated with the operation and maintenance of fixed assets for environmental purposes; costs for acceptance, storage or disposal of environmentally hazardous waste; costs for environmental protection measures; costs to ensure an acceptable standard of living and work of employees and other social costs. Forms of reports, containing information on the environmental and social activities of the organization, have been developed. Reporting in the field of sustainable development is formed on the basis of accounting data. Before the authorized organizations there is a question of development of the primary documentation of registration of the operations connected with social activity of the enterprises. The use of information technology in the compilation of reports in the field of sustainable development will simplify the process of obtaining accounting data related to the economic, environmental and social activities of the organization. Further work is needed to determine the composition and structure of reporting containing information of a social nature, as well as research on the methodology, based on which the issue of the relationship between the main forms of reports will be resolved. The accounting methodology should be directed to the social activities of the enterprise. Currently, many enterprises support this direction, which positively affects their business reputation.
Comparison between seasonal variations in tidal and internal gravity wave activity as derived from observations at Maimaga and Tiksi
Authors: Сивцева Вера , Sivtseva Vera , Аммосов Петр , Ammosov Petr , Гаврильева Галина , Gavrilyeva Galina , Колтовской Игорь , Koltovskoi Igor , Аммосова Анастасия , Ammosova Anastasiya
Published: June 2018

Since 2015, simultaneous observations of temperature of the high-latitude mesopause (87 km) have been made at Maimaga (63.04° N, 129.51° E) and Tiksi (71.58° N, 128.77° E) stations. These stations record spectra with Shamrock (Andor) photosensitive infrared spectrographs detecting the OH (3, 1) band in the near-infrared region (about 1.5 μm). We analyze temperature data obtained in observation seasons from 2015 to 2017. Standard deviations of temperature σ from its mean values are taken as characteristics of wave activity at night. We have obtained standard temperature deviations corresponding to internal gravity waves (IGW) (σgw) and tidal waves (σtd). Mean night rotational temperatures of hydroxyl emission almost coincide, and seasonal variations of gravity and tidal waves have a similar form during two seasons of simultaneous observations at Tiksi and Maimaga.
Observing wave packets generated by solar terminator in TEC during typhoons
Authors: Едемский Илья , Edemsky Ilya , Ясюкевич Анна , Yasyukevich Anna
Published: June 2018

In this work, we study ionospheric disturbances excited by the passage of the solar terminator (ST) during tropical cyclones, using total electron content (TEC) data. We have considered 16 intense tropical cyclones (typhoons) that acted in the northwest of the Pacific Ocean near the territory of Japan. We analyze two-dimensional distributions of the number of registered wave packets (WPs) depending on various parameters: local time, WP maximum amplitude, and distance to typhoon. It is shown that in most cases the maximum number of WPs is observed at a distance less than 500–1500 km from the typhoon center and near the time of evening solar terminator passage. For typhoons occurring during autumn periods, the maximum number of WPs is recorded at daytime, and, apparently, is not associated with ST. Distributions of the number of WPs depending on their amplitude have a similar form for all the cases considered, with a maximum of about 0.2 TECU. At the same time, for some typhoons there are a large number of WPs with amplitude up to 0.6–0.8 TECU, which is significantly higher than WP amplitudes under quiet conditions. We briefly discuss the mechanism of possible interaction between ionospheric disturbances caused by two different sources (tropical cyclones and ST passage).
Statistical studies of duration of low-power solar flares
Authors: Боровик Александр , Borovik Aleksandr , Жданов Антон , Zhdanov Anton
Published: June 2018

This paper is a sequel to papers dealing with time parameters of solar flares in the Hα line. Using data from the international flare patrol for 1972–2010, we have determined mean duration of flares of different importance and classes of area. We have established that 94.6 % of flares last more than 60 min. The duration of 90 % of flares with min is 2.1–3.3 hrs. In rare cases, flares can last about 12 hrs. The duration of powerful solar flares does not exceed 8.3 hrs. We have found that the duration of solar flares de-pends on features of their development. Flares with one brilliant point in the flare region have the shortest duration; two-ribbon flares and flares exhibiting several intensity maxima have the longest duration. We have confirmed that the duration of flares increases with increasing classes of area and brightness.
The diagnostics of HF radio channel on the base of backscatter ionosphere sounding data with continuous chirp signal
Authors: Пономарчук Сергей , Ponomarchuk Sergey , Грозов Виктор , Grozov Viktor , Котович Галина , Kotovich Galina , Куркин Владимир , Kurkin Vladimir , Пензин Максим , Penzin Maksim
Published: June 2018

Backscatter ionospheric sounding (BIS) is a powerful tool for monitoring and predicting conditions of operation of HF communication systems. The BIS method is adopted to determine coverage areas of radio waves and maximum usable radio frequencies, distance along the ground to a scatterer, as well as to gain information about ionospheric structure and conditions. To solve these problems, we propose a method for direct diagnostics of HF radio channel at the front edge of BIS signals on ionograms. The method relies on real-time automatic processing and interpretation of BIS ionograms. We present algorithms for determining the maximum usable frequencies and characteristics of oblique sounding signals from current BIS data, without correcting ionospheric parameters. We realize the algorithm for recovering ionospheric parameters at the path midpoint.
Diagnostics of internal atmospheric wave saturation and determination of their characteristics in Earth’s stratosphere from radiosonde measurements
Authors: Губенко Владимир , Gubenko Vladimir , Кириллович Иван , Kirillovich Ivan
Published: June 2018

Internal gravity waves (IGW) significantly affect the structure and circulation of Earth’s atmosphere by transporting wave energy and momentum upward from the lower atmosphere. Since IGW can propagate freely through a stably stratified atmosphere, similar effects may occur in the atmospheres of Mars and Venus. Observations of temperature and wind speed fluctuations induced by internal waves in Earth’s atmosphere have shown that wave amplitudes increase with height, but not quickly enough to correspond to the amplitude increase due to an exponential decrease in the density without energy dissipation. The linear theory of IGW explains the wave amplitude growth rate as follows: any wave amplitude exceeding the threshold value leads to instability and produces turbulence, which hinders further amplitude growth (internal wave saturation). The mechanisms that contribute most to the energy dissipation and saturation of IGW in the atmosphere are thought to be the dynamical (shear) and convective instabilities. The assumption of internal wave saturation plays a key role in radio occultation (RO) monitoring of IGW in planetary atmospheres. A radiosonde study of wave saturation processes in Earth’s atmosphere is therefore actual and important task. We report the results of determination of actual and threshold amplitudes, saturation degree, and other characteristics for the identified IGW in Earth’s atmosphere obtained from the analysis of SPARC (Stratospheric Processes And their Role in Climate) radiosonde measurements of wind speed and temperature [http://www.sparc.sunysb.edu/].
Interannual dynamics in intensity of mesoscale hydroxyl nightglow variations over Almaty
Authors: Попов А. , Popov A. , Гаврилов Николай , Gavrilov Nikolay , Андреев А. , Andreev A. , Погорельцев Александр , Pogoreltsev Aleksandr
Published: June 2018

The method of digital difference filters is applied to the data analysis of SATI observations of hydroxyl nightglow intensity and rotational temperature at altitudes 85–90 km over Almaty (43°03' N, 76°58' E), Kazakhstan, in 2010–2017. We examine seasonal and interannual variations in average monthly values and standard deviations of variations with periods 0.4–5.4 hrs, which may be associated with internal gravity waves in the mesopause region. The average monthly temperature near the mesopause has a maximum in winter and a minimum in June. The average monthly intensity has an additional maximum in June. Standard deviation of mesoscale rotational temperature variations and characteristics of internal gravity waves are maximum in spring and autumn. The spring maximum of mesoscale OH emission intensity variations is shifted to June. Interannual variations and multi-year trends of OH rotational temperature and emission intensity may differ in detail. This may be connected with seasonal and long-term variations in the complex system of the photochemical processes, which produce the OH nightglow.
The ageing hand, part two: extrinsic ageing and skin-rejuvenating procedures
Authors: Boxley Sarah
Published: June 2018

When rejuvenating the hands, the most aesthetically pleasing results are achieved when the effects of both intrinsic and extrinsic ageing are addressed, which often involves using a number of approaches. Extrinsic ageing affects both the epidermis and dermis, manifesting as dermatoheliosis (wrinkling, skin laxity, crepiness, rough texture and pigmentary changes). The skin of the dorsal hand can be effectively treated with a range of modalities, although their use must be adapted to account for the anatomical differences between facial skin and that on the hand. This second article in a two-part series will look at the various options for skin rejuvenation of the ageing hand.
Managing expectations: an important part of the aesthetic consultation
Authors: Brackenbury Julie
Published: June 2018

Patient expectations need to be managed prior to all aesthetic procedures in order to improve outcomes and reduce the risk of liability. Some of the challenges aesthetic nurses face today in managing patients' expectations include pressures from mass media, and the boom of selfies, airbrushing and celebrity culture. Ensuring patients have a clear and realistic understanding of what a treatment can achieve at the outset improves the likelihood of an optimal outcome and increases patient satisfaction.
Establishing and developing the role of the specialist aesthetic nurse
Authors: Baker Anna
Published: June 2018

In the fast-moving field of aesthetic medicine, it is more important than ever before that nurses continue to engage with education and training opportunities. Members of the British Association of Cosmetic Nurses (BACN) are reporting a need to develop their knowledge and skills, says board member Anna Baker, and the BACN has been responding to their requests
Solving a problem like plastic: how clinic staff can effect environmental change
Authors: Waters Rebecca
Published: June 2018

As the Government pushes for the eradication of single-use plastic items and plastic waste in the UK, the aesthetics sector must also make an effort to become more environmentally friendly. From clinic instruments to product packaging, clinic staff can start to source some alternative products to minimise the use of plastic. Rebecca Waters suggests ways in which the whole team can make a difference
Employee references: understanding your obligations as an employer
Authors: Bernstein Adam
Published: June 2018

For a number of reasons, it is incumbent on clinics to ensure that they know who they are employing. Whether it is to prevent losses, avoid misuse of client information or simply to comply with legislative requirements to ensure a right to work, clinics need to be thorough when vetting staff. Adam Bernstein outlines the requirements for employers and the legal implications of providing inaccurate references
How do you sell sun protection products to your clinic's patients?
Authors: Cooper Rachel , Woodcock Amber , Mcgloin Claudia , Baines Kellie
Published: June 2018

Every sector caters to people with different needs, requiring business owners to know as much as possible about their target audience, and make a concerted effort to not only meet, but also exceed their expectations. Four aesthetic practitioners and clinic managers suggest some effective ways to educate patients on the importance of applying high-protection sunscreen on a daily basis
How can aesthetic practitioners benefit from building relationships with peers?
Authors: Henderson Alexandria
Published: June 2018

Moving from an NHS environment to private practice can be a daunting experience for many nurses, especially those who take comfort in working in a team. Networking can have a range of benefits for nurses working either in their own practice or as mobile practitioners. Alexandria Henderson reflects on her personal experience of isolation and explains why making connections can only be positive
Inconclusive benefit of adjuvant90Yttrium hydroxyapatite to radiosynovectomy for diffuse-type tenosynovial giant-cell tumour of the knee
Authors: Gortzak Y. , Vitenberg M. , Frenkel Rutenberg T. , Kollender Y. , Dadia S. , Sternheim A. , Morag G. , Farkash U. , Rath E. , Kramer M. , Drexler M.
Published: June 2018

Aims

Intra-articular90Yttrium (90Y) is an adjunct to surgical treatment by synovectomy for patients with diffuse-type tenosynovial giant-cell tumour (dtTGCT) of the knee, with variable success rates. Clinical information is, however, sparse and its value remains unclear. We investigated the long-term outcome of patients who underwent synovectomy with and without adjuvant treatment with90Yttrium.

Patients and Methods

All patients with dtTGCT of the knee who underwent synovectomy between 1991 and 2014 were included in the study. Group A patients underwent synovectomy and an intra-articular injection of90Yttrium between six and eight weeks after surgery. Group B patients underwent surgery alone.

Results

There were 34 patients in group A and 22 in group B. Recurrence of dtTGCT was identified by MRI, which was undertaken in patients with further symptoms. At a mean follow-up of 7.3 years (2.5 to 25.4), there was residual disease in 15 patients in group A and 11 in group B (p < 0.363). The mean Musculoskeletal Tumor Society (MSTS) score at final follow-up was 85% and 83%, respectively (p < 0.91).

Conclusion

There were no significant differences in outcome between patients treated surgically for dtTGCT of the knee with or without an adjuvant intra-articular injection of90Yttrium. We were unable to provide conclusive evidence of any benefits derived from the adjuvant treatment. Cite this article: Bone Joint J 2018;100-B:984–8.
Skin crease ‘bikini’ incision for the direct anterior approach in total hip arthroplasty
Authors: Leunig M. , Hutmacher J. E. , Ricciardi B. F. , Impellizzeri F. M. , Rüdiger H. A. , Naal F. D.
Published: June 2018

Aims

The classical longitudinal incision used for the direct anterior approach (DAA) to the hip does not follow the tension lines of the skin and can lead to impaired wound healing and poor cosmesis. The purpose of this retrospective study was to determine the satisfaction with the scar, and functional and radiographic outcomes comparing the classic longitudinal incision with a modified skin crease ‘bikini’ when the DAA is used for total hip arthroplasty (THA).

Patients and Methods

A total of 964 patients (51% female; 59% longitudinal, 41% ‘bikini’) completed a follow-up questionnaire between two and four years postoperatively, including the Oxford Hip Score (OHS), the University of North Carolina ‘4P’ scar scale (UNC4P) and two items for assessing the aesthetic appearance of the scar and symptoms of numbness. The positioning of the components, rates of heterotopic ossification (HO) and rates of revision were assessed.

Results

The mean OHS was similar in both groups (p = 0.41). The mean UNC4P total score was slightly better (p = 0.01) and the proportion of patients who were very satisfied with the cosmetic aspects of the scar was higher in the ‘bikini’ group (p < 0.001). The proportion of patients reporting numbness in the scar was higher in the longitudinal group (14.5% vs 7.5%, respectively, p < 0.001). The abduction angle of the acetabular component, the position of the stem and rates of HO did not differ between the groups. There were no differences in the revision rates of both groups, being 2.3% in the longitudinal and 1.5% in the ‘bikini’ group (p = 0.911).

Conclusion

We found that a short oblique ‘bikini’ skin crease incision is safe when used for the DAA at THA, without compromising the positioning of the components or increasing the rate of lateral femoral cutaneous nerve dysaesthesia. Although it leads to a superior scar satisfaction, as it is less extensile, it should be used after having gained experience with the classic longitudinal incision. Cite this article: Bone Joint J 2018;100-B:853–61.
Does acetabular coverage influence the clinical outcome of arthroscopically treated cam-type femoroacetabular impingement (FAI)?
Authors: Ibrahim M. M. , Poitras S. , Bunting A. C. , Sandoval E. , Beaulé P. E.
Published: June 2018

Aims

What represents clinically significant acetabular undercoverage in patients with symptomatic cam-type femoroacetabular impingement (FAI) remains controversial. The aim of this study was to examine the influence of the degree of acetabular coverage on the functional outcome of patients treated arthroscopically for cam-type FAI.

Patients and Methods

Between October 2005 and June 2016, 88 patients (97 hips) underwent arthroscopic cam resection and concomitant labral debridement and/or refixation. There were 57 male and 31 female patients with a mean age of 31.0 years (17.0 to 48.5) and a mean body mass index (BMI) of 25.4 kg/m2 (18.9 to 34.9). We used the Hip2Norm, an object-oriented-platform program, to perform 3D analysis of hip joint morphology using 2D anteroposterior pelvic radiographs. The lateral centre-edge angle, anterior coverage, posterior coverage, total femoral coverage, and alpha angle were measured for each hip. The presence or absence of crossover sign, posterior wall sign, and the value of acetabular retroversion index were identified automatically by Hip2Norm. Patient-reported outcome scores were collected preoperatively and at final follow-up with the Hip Disability and Osteoarthritis Outcome Score (HOOS).

Results

At a mean follow-up of 2.7 years (1 to 8, sd 1.6), all functional outcome scores significantly improved overall. Radiographically, only preoperative anterior coverage had a negative correlation with the improvement of the HOOS symptom subscale (r = -0.28, p = 0.005). No significant difference in relative change in HOOS subscale scores was found according to the presence or absence of radiographic signs of retroversion.

Discussion

Our study demonstrated the anterior coverage as an important modifier influencing the functional outcome of arthroscopically treated cam-type FAI. Cite this article: Bone Joint J 2018;100-B:831–8.
Two-centre radiological survivorship of acetabular distraction technique for treatment of chronic pelvic discontinuity
Authors: Sheth N. P. , Melnic C. M. , Brown N. , Sporer S. M. , Paprosky W. G.
Published: June 2018

Aims

The aim of this study was to examine the results of the acetabular distraction technique in achieving implantation of a stable construct, obtaining biological fixation, and producing healing of chronic pelvic discontinuity at revision total hip arthroplasty.

Patients and Methods

We identified 32 patients treated between 2006 and 2013 who underwent acetabular revision for a chronic pelvic discontinuity using acetabular distraction, and who were radiographically evaluated at a mean of 62 months (25 to 160). Of these patients, 28 (87.5%) were female. The mean age at the time of revision was 67 years (44 to 86). The patients represented a continuous series drawn from two institutions that adhered to an identical operative technique.

Results

Of the 32 patients, one patient required a revision for aseptic loosening, two patients had evidence of radiographic loosening but were not revised, and three patients had migration of the acetabular component into a more stable configuration. Radiographically, 22 (69%) of the cohort demonstrated healing of the discontinuity. The Kaplan–Meier construct survivorship was 83.3% when using revision for aseptic acetabular loosening as an endpoint. At the time when one patient failed due to aseptic loosening (at 7.4 years), there were a total of seven patients with a follow-up of seven years or longer who were at risk of failure.

Conclusion

The acetabular distraction technique demonstrates encouraging radiographic outcomes, with healing of the discontinuity in over two-thirds of our series. This surgical technique permits biological fixation and intraoperative customization of the construct to be implanted based on the pattern of the bone loss identified following component removal. Cite this article: Bone Joint J 2018;100-B:909–14.
Are adverse outcome rates higher in multiple sclerosis patients after total hip arthroplasty?
Authors: Newman J. M. , Khlopas A. , Sodhi N. , Curtis G. L. , Sultan A. A. , George J. , Higuera C. A. , Mont M. A.
Published: June 2018

Aims

This study compared multiple sclerosis (MS) patients who underwent primary total hip arthroplasty (THA) with a matched cohort. Specifically, we evaluated: 1) implant survivorship; 2) functional outcomes (modified Harris Hip Scores (mHHS), Hip Disability and Osteoarthritis Outcome Score, Joint Replacement (HOOS JR), and modified Multiple Sclerosis Impact Scale (mMSIS) scores (with the MS cohort also evaluated based on the disease phenotype)); 3) physical therapy duration and return to function; 4) radiographic outcomes; and 5) complications.

Patients and Methods

We reviewed our institution’s database to identify MS patients who underwent THA between January 2008 and June 2016. A total of 34 MS patients (41 hips) were matched in a 1:2 ratio to a cohort of THA patients who did not have MS, based on age, body mass index (BMI), and Charlson/Deyo score. Patient records were reviewed for complications, and their functional outcomes and radiographs were reviewed at their most recent follow-up.

Results

Compared with the matched cohort, MS patients had lower all-cause implant survivorship at eight years (91.5% (95% confidence interval (CI) 82.7 to 100) vs 98.7% (95% CI 96.2 to 100)) (p = 0.033), lower mHHS scores (66 vs 80, p < 0.001), and HOOS JR scores (79 vs 88, p = 0.009). Multiple sclerosis patients also required more physiotherapy (five weeks vs three weeks, p = 0.002) and took longer to return to baseline (seven weeks vs five weeks, p = 0.010) than the matched cohort. Furthermore, MS patients had more complications than the non-MS patients (six vs zero, p < 0.001). The worse outcomes of the MS group can potentially be explained by predisposition of these patients to mechanical complications and progression of their disease during the period of this study, as demonstrated by worsening of the mMSIS scores (2.9 vs 3.4; p = 0.008).

Conclusion

MS patients had lower implant survivorship, lower functional outcome scores, and increased complication rates; in addition, MS patients took longer to return to their baseline functional level after THA. Cite this article: Bone Joint J 2018;100-B:875–81.
Results of trabecular metal augments in Paprosky IIIA and IIIB defects
Authors: Eachempati K. K. , Malhotra R. , Pichai S. , Reddy A. V. G. , Podhili Subramani A. K. , Gautam D. , Bollavaram V. R. , Sheth N. P.
Published: June 2018

Aims

The advent of trabecular metal (TM) augments has revolutionized the management of severe bone defects during acetabular reconstruction. The purpose of this study was to evaluate patients undergoing revision total hip arthroplasty (THA) with the use of TM augments for reconstruction of Paprosky IIIA and IIIB defects.

Patients and Methods

A retrospective study was conducted at four centres between August 2008 and January 2015. Patients treated with TM augments and TM shell for a Paprosky grade IIIA or IIIB defect, in the absence of pelvic discontinuity, and who underwent revision hip arthroplasty with the use of TM augments were included in the study. A total of 41 patients with minimum follow-up of two years were included and evaluated using intention-to-treat analysis.

Results

There were 36 (87.8%) patients with a Paprosky IIIA defect and five (12.2%) patients with a Paprosky IIIB defect. The mean age was 56.7 years (28 to 94). There were 21 (51.2%) women and 20 (48.8%) men. The mean follow-up was 39.4 months (12 to 96). One (2%) patient died after eight years. No failures were noted in the series. The mean survivorship was 100% at the time of latest follow-up.

Conclusion

The results of this multicentre study showed encouraging short- and mid-term results for the use of TM augments in the management of Paprosky grade IIIA and IIIB defects. Cite this article: Bone Joint J 2018;100-B:903–8.
Qualidade da amizade na adolescência e ajustamento social no grupo de pares
Authors: Freitas Miguel , Santos António J. , Ribeiro Olívia , Pimenta Margarida , H. Rubin Kenneth
Published: June 2018

As amizades na adolescência são fundamentais para o desenvolvimento social, emocional e cognitivo. Porém, diferenças na qualidade da relação com um melhor amigo podem também estar associadas ao ajustamento psicossocial dos adolescentes. Este estudo procurou identificar diferentes perfis de qualidade de amizade, contrastando-os relativamente a dimensões positivas e negativas dessa relação, bem como ao ajustamento social dos adolescentes no grupo de pares. 821 participantes do 7º ano de escolaridade (M=13 anos), reportaram a sua percepção da qualidade da melhor amizade e nomeações sociométricas permitiram aceder às dimensões do ajustamento social no grupo de pares. Uma análise hierárquica de clusters baseados nas dimensões positivas da qualidade de amizade permitiu identificar três tipos de perfis, nomeadamente de qualidade alta, média e baixa (QA, QM, QB), que se distinguiram significativamente na qualidade global e em todas as dimensões positivas da amizade: as amizades QA caracterizaram-se por mais companheirismo, validação, ajuda, suporte, intimidade e estratégias de resolução de conflitos, enquanto as amizades QB foram marcadas por valores inferiores nestas dimensões. Diferenças de sexo demonstraram que as raparigas experienciaram mais partilha de intimidade e validação e cuidado nas suas díades de amizade. Também nos aspectos negativos (conflitos e traições), as amizades QA se distinguiram por apresentarem níveis menos frequentes. Quanto ao ajustamento social, os adolescentes com amizades de alta qualidade foram considerados pelos pares como os menos socialmente retirados, excluídos e vitimizados, mas os mais pró-sociais e populares/sociáveis. Adolescentes com amizades de baixa qualidade foram caracterizados com valores opostos. Estes resultados mostram a importância da amizade neste período do desenvolvimento e permitem compreender, em particular, a influência da qualidade dessa relação no contexto social dos jovens.
Kandungan Logam Berat Besi (Fe) Pada Air, Sedimen, Dan Kerang Hijau (Perna viridis) Di Perairan Tanjung Emas Semarang
Authors: Supriyantini Endang , Endrawati Hadi
Published: June 2018

Logam berat Fe merupakan logam berat essensial yang keberadaannya dalam jumlah tertentu sangat dibutuhkan oleh organisme hidup, namun dalam jumlah yang berlebih dapat menimbulkan efek racun.Penelitian ini bertujuan untuk menganalisis kandungan dan tingkat pencemaran logam berat Fe pada air, sedimen, dan kerang hijau (Perna viridis) di perairan Tanjung Emas Semarang. Penelitian ini dilaksanakan pada tanggal 7 November dan 7 Desember 2013 dengan metode penelitian deskriptif. Logam berat Fe dalam sampel air, sedimen dan kerang hijau dianalisis di Laboratorium Balai Besar Teknologi Pencegahan Pencemaran Industri (BTPPI) Semarang dengan menggunakan metode AAS (AtomicAbsorption Spectrophotometry). Hasil penelitian menunjukkan bahwa perairan Tanjung Emas masih dalam taraf terkontaminasi logam Fe. Sedangkan pada sedimen dan pada kerang hijau (Perna viridis) sudah terindikasi tercemar logam Fe.Meskipun demikian variasi faktor lingkungan seperti suhu, salinitas, pH, kecepatan arus dan jenis sedimen juga memberikan kontribusi yang cukup penting terhadap kandungan logam Fe.Kata Kunci: logam Fe, Air, Sedimen, Perna viridis, metode AAS Heavy metalsiron(Fe) is anessentialheavy metalswhose presencein a certain amountis neededby living organisms, but inexcessiveamountscan causetoxic effects.The aims of the research is to analyze the heavy metals coccentration and the pollution level of Fe in water, sediment, and green mussels (Perna viridis) at Tanjung Emas Semarang. This research was conducted from 7 November and 7 December 2013 using the Atomic Absorption Spectrophotometry (AAS) and research methodswithdescriptive. The results showed that the waters of the Tanjung Emas is still in the stage of heavy metals contaminated iron (Fe). Sediment and green mussels (Perna viridis)already indicated heavy metal contaminatediron. However, variations inenvironmental factorssuch astemperature, salinity, pH, flow velocity an dsediment types also providean important contributionto heavy metal contentof iron(Fe).Key Words: Fe, water, sediment, Perna viridis, metode AAS
Analisis Kerusakan Mangrove Di Pusat Restorasi Dan Pembelajaran Mangrove (PRPM), Kota Pekalongan
Authors: Ario Raden , Subardjo Petrus , Handoyo Gentur
Published: June 2018

Mangrove merupakan vegetasi pantai yang terlindungi. Kerusakan mangrove dapat terjadi secara alami ataupun adanya tekanan masyarakat pantai sekitar. Tekanan kerusakan ulah masyarakat disekitar pantai Kota Pekalongan, Jawa Tengah berakibat adanya perubahan karakteristik fisik dan kimiawi lingkungan. Penelitian yang dilaksanakan pada bulan Agustus 2014 ini bertujuan untuk menganalisis penyebab kerusakan mangrove di pantai Kota Pekalongan. Metode Survey dilakukan di Pusat Restorasi dan Pembelajaran Mangrove (PRPM) dengan sampling data pada 4 lokasi dengan 3 kali pengulangan. Analisis data dilakukan dengan pendekatan metode Deskriptip Komparatip untuk membandingkan kondisi ekosistem mangrove. Hasil yang didapat adalah mangrove dari jenis Rhyzophora sp., Bruguiera sp., Avicennia sp., Sonneratia sp., dan Xylocarpus. Sedangkan jenis mangrove yang tumbuh dominan adalah jenis Rhyzophora, Bruguiera, dan Avicennia, serta jenis Rhyzophora yang paling dominan. Jenis Rhyzophora merupakan vegetasi perintis dengan tingkat kerapatan relatip tinggi dan dapat tumbuh pada tanah berlumpur.Kata kunci : Analisis, Kerusakan, Mangrove.
Kontaminasi Pestisida Organoklorin pada Sedimen dan Air Laut dan Pengaruhnya Terhadap Kelimpahan Makrozoobenthos di Pesisir Jepara
Authors: Suryono Chrisna Adhi , Suwartimah Ken , Rochaddi Baskoro , Sarjito Sarjito
Published: June 2018

Senyawa pestisida merupaka senyawa persisten yang sangat sulit diuraikan dan akan terakumulasi dalam lemak suatu organisme. Tujuan dari penelitian ini adalah untuk mengetahui keberadaan senyawa pestisida dan keterkainya dengan keanekaragaman makrozoobenthos di perairan Mlonggo Jepara. Metode survey digunakan dalam penelitian ini dengan mengambil 3 lokasi titik sampling dan ulangan sebanyak 4 kali. Hasil penelitian menunjukan daerah muara sungai (stasiun II) menunjukan kandungan pestisida yang lebih tinggi dan keanekaragaman hewan makrozoobenthos yang rendah bila dibandingkan dengan stasiun I (perairan sungai) dan stasiun III (perairan laut).Kata kunci: Pestisida, akumulasi dan makrozoobenthosThe pesticide compound has characteristic difficult to degrade in the nature and accumulate in fat tissue of organism. The purpose o the research was conducting the existing of pesticide compound on Mlonggo waters and their correlation to macrozoobenthic diversity. Sampling survey method was applied on this research which take place on 3 station and 4 replicate. The present research show, that the location on the mouth of river (station II) has the highest concentration of pesticide compound and lowest of macrozoobenthic diversity compared with stations I and III which located on the river and sea.Keywords: Pesticide, accumulation and macrozoobenthic
The Influence of Temperature - Food Availability on the Shell Growth of Sea Scallop Placopecten magellanicus (Gmelin, 1791)
Authors: Santoso Adi
Published: June 2018

A study of the growth of the sea scallop, Placopecten magellanicus, under suspended culture conditions was carried out over a seven month period at a culture site in Graves Shoal, Mahone Bay,Nova Scotia – Canada. Scallop spat were cultivated in pearl nets at a density of 30-35 per net set at four locations corresponding to the surface (7 m) and bottom (14 m) at the outer edge and the center of the site. Shell height was measured at monthly intervals. Environmental conditions represented as temperature and food availability at the surface and bottom over the same period were also monitored. Shell Height growth rate was slightly greater at the surface than at the bottom. At the surface sites growth was greater at the outside (SUROUT) than at the center locations, but at the bottom growth was greater at the centre location (BOTIN). The only significant relationship between shell growth and temperature - food variables was chlorophyll a concentration.  Key words: temperature, food availability, shell height, sea scallop
Struktur Komunitas Larva Ikan Pada Ekosistem Padang Lamun Di Perairan Jepara
Authors: Riniatsih Ita
Published: June 2018

Ekosistem padang lamun sebagai salah satu ekosistem di wilayah pesisir yang produktif  mempuyai fungsi secara ekologis sebagai tempat untuk memijah, daerah asuhan bagi larva yang dihasilkan dan tempat untuk mencari makan berbagai organism laut yang hidup di dalamnya. Kelestarian dan keanekaragaman organism laut sangat tergantung dari keberadaan dan kondisi biofisik padang lamun sebagai habitat sementara atau habitat selama siklus hidupnya. Penelitian tentang kajian fungsi ekologis  padang lamun ini dilakukan untuk melihat seberapa jauh keterkaitan tentang kondisi padang lamun dengan keaneragaman larva ikan yang memanfaatkan padang lamun untuk tempat  berlindung  dan mencari makan.  Penelitian dengan metoda deskriptif ini dilakukan di ekosistem padang lamun Jepara di perairan Teluk Awur, Pantai Bandengan dan perairan Mororejo. Sampel ikan di tangkap dengan menggunakan jarring sudu, yang didorong sepanjang 150 meter sejajar garis pantai. Jumlah total  larva ikan yang tertangkap selama penelitian adalah sebanyak 570 ekor dari 12 famili. Hasil identifikasi memperlihatkan famili ikan yang tertangkap adalah Apogonidae, Carapidae, Blenniidae, Egraulidae, Epilephenidae, Gerridae, Heniranphidae, Labridae, Gobiidae, Lutjanidae, Syngnathidae, Mullidae, dan Siganidae. Famili ikan yang teridentifikasi didominasi dari famili Gobiidae, Bleniidae dan Eugraulidae. Berdasarkan lokasi pengamatan, lokasi perairan Bandengan merupakan lokasi dengan hasil tangkapan larva ikan tertinggi, yaitu sebanyak 9 famili, perairan Teluk Awur sebanyak 7 famili dan perairan Mororejo sebanyak 5 famili. Kata kunci: larva ikan, padang lamun, perairan Jepara
Produksi Garam Dan Bittern Di Tambak Garam
Authors: Jaya Nur Taufiq Syamsudin Putra , Hartati Retno , Widianingsih Widianingsih
Published: June 2018

Rembang Regency could be named as Salt City because they have very high production after Pati Regency. Along the road of Juwana (Pati) - Rembang, salt pond could be seen as square salt sea equipped with windmill to take the sea water from the channel into the pond and is processed into salt. Although salt localproduction is sufficient enough for raw material of industry, therefore best practical technology it is needed. The objective of present work are  to improve directly the process of salt production and basic technique for diversiificatio of salt production, i.e. salt and bittern. The result of present works as follows. Getrape type salt pond is applied, where  young water embankment is located upstream and the down to seed pond 1, 2, 3, then distributed to cristalization pan. Seawater is taken through primary dykes to pump at elevation of 1.5 m, so still full of water during high tide. On cristalization pan (size of 200 m2) sea water will be settled during 7–10 days until its cristalized. Salt cristal was located under bittern solution could be scrap and collected in collection point.  The left-after bittern of 29–30° Be could be flowed back into seed pan uo be collected in bitter collection point.  Keywords: Rembang, salt, bittern
Pelestarian Habitat Penyu Dari Ancaman Kepunahan Di Turtle Conservation And Education Center (TCEC), Bali
Authors: Ario Raden , Wibowo Edi , Pratikto Ibnu , Fajar Surya
Published: June 2018

Penyu merupakan salah satu fauna yang dilindungi karena populasinya yang terancam punah. Reptil laut ini mampu bermigrasi dalam jarak yang sangat jauh di sepanjang kawasan Samudera Hindia, Samudera Pasifik, dan Asia Tenggara. Di dunia ada 7 jenis penyu dan 6 diantaranya terdapat di Indonesia. Konservasi merupakan salah satu kegiatan yang diharapkan dapat mencegah punahnya habitat penyu karena predator alami maupun manusia. Penelitian dilaksanakan mulai tanggal 4 - 24 Agustus 2014 dan bertempat di Turtle Conservation and Education Center (TCEC), Denpasar Selatan, Bali. Penelitian ini bertujuan untuk mengetahui teknik konservasi dan persentase keberhasilan penetasan telur penyu di TCEC, Bali. Metode yang digunakan dalam penelitian ini adalah metode wawancara, observasi atau pengamatan secara langsung yang dilakukan di lapangan, dan metode pengukuran suhu sarang semi alami. Pengukuran suhu dilakukan untuk mengetahui jenis kelamin dari tukik yang menetas. Hasil penelitian menunjukan bahwa lokasi penangkaran penyu berada di kawasan yang kurang strategis karena letaknya terlalu jauh dari air laut sehingga suhu serta kelembabannya tidak dapat stabil. Kadar air merupakan faktor penting dalam pertumbuhan embrio dan penetasan telur. Hal ini akan menyebabkan penurunan persentase penetasan telur penyu. TCEC didirikan sebagai tempat edukasi konservasi penyu, pelestarian penyu, dan penyedia penyu untuk upacara adat di Bali serta mengurangi perdagangan baik daging, cangkang ataupun telur penyu.  Kata Kunci:  Pelestarian, Penyu, TCEC Bali