bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experimental posterolateral spinal fusion with porous ceramics and mesenchymal stem cells
Authors: Cinotti G. , Patti A. M , Vulcano A. , Rocca C. Della , Polveroni G. , Giannicola G. , Postacchini F. 
Published: February 2018

Aternatives to autogenous bone graft for spinal fusion have been investigated for many years. It has been shown that osteoconductive materials alone do not give a rate of fusion which is comparable to that of autogenous bone graft. We analysed the effectiveness of porous ceramic loaded with cultured mesenchymal stem cells as a new graft material for spinal fusion in an animal model. Posterolateral fusion was carried out at the L4/L5 level in 40 White New Zealand rabbits using one of the following graft materials: porous ceramic granules plus cultured mesenchymal stem cells (group I); ceramic granules plus fresh autogenous bone marrow (group II); ceramic granules alone (group III); and autogenous bone graft (group IV). The animals were killed eight weeks after surgery and the spines were evaluated radiographically, by a manual palpation test and by histological analysis. The rate of fusion was significantly higher in group I compared with group III and higher, but not significantly, in group I compared with groups II and IV. In group I histological analysis showed newly formed bone in contact with the implanted granules and highly cellular bone marrow between the newly formed trabecular bone. In group II, thin trabeculae of newly formed bone were present in the peripheral portion of the fusion mass. In group III, there was a reduced mount of newly formed bone and abundant fibrous tissue. In group IV, there were thin trabeculae of newly formed bone close to the decorticated transverse processes and dead trabecular bone in the central portion of the fusion mass. In vitro cultured mesenchymal stem cells may be loaded into porous ceramic to make a graft material for spinal fusion which appears to be more effective than porous ceramic alone. Further studies are needed to investigate the medium- to long-term results of this procedure, its feasibility in the clinical setting and the most appropriate carrier for mesenchymal stem cells.
Functional recovery in patients with nonunion treated with the Ilizarov technique
Authors: Barker K. L. , Lamb S. E. , Simpson A. H. R. W. 
Published: February 2018

There are few reports on function after limb salvage surgery using the Ilizarov technique, and none that document the pattern of recovery or predict when maximum function returns. This prospective, longitudinal study documents the baseline functional abilities of 40 consecutive patients with nonunion of a fracture in the lower limb. Patients were studied for at least two and a half years following the completion of surgery. Function was measured by timed tests of functional performance and by the Toronto Extremity Salvage Score self-reported patient questionnaire. Recovery was slowest in the early stages after removal of the frame and greatest between six months and one year. Statistically significant improvement continued up to, but not beyond two years. This observation has important implications for the length of follow-up incorporated into the rehabilitation programmes for patients, predictions of patient status in regard to compensation and for the design of future studies to evaluate functional outcome.
Changes in bone mineral density in the proximal femur after cementless total hip arthroplasty
Authors: Brodner W. , Bitzan P. , Lomoschitz F. , Krepler P. , Jankovsky R. , Lehr S. , Kainberger F. , Gottsauner-Wolf F. 
Published: February 2018

We investigated prospectively the bone mineral density (BMD) of the proximal femur after implantation of a tapered rectangular cementless stem in 100 patients with a mean age of 60 years (16 to 87). It was determined using dual energy x-ray absorptiometry, performed one week after surgery and then every six months until the end-point of five years. The BMD increased significantly in Gruen zones 2, 4 and 5 by 11%, 3% and 11% respectively, and decreased significantly in Gruen zones 1, 6 and 7 by 3%, 6% and 14% respectively, over the five-year period. The net mean BMD did not change over this time period. The changes in the BMD were not confined to the first 12 months after surgery. This investigation revealed no change in the overall periprosthetic BMD, but demonstrated a regional redistribution of bone mass from the proximal to distal zones.
Energy expenditure during walking in amputees after disarticulation of the hip
Authors: Chin T. , Sawamura S. , Shiba R. , Oyabu H. , Nagakura Y. , Nakagawa A. 
Published: February 2018

We have compared the energy expenditure during walking in three patients, aged between 51 and 55 years, with unilateral disarticulation of the hip when using the mechanical-controlled stance-phase control knee (Otto Bock 3R15) and the microprocessor-controlled pneumatic swing-phase control knee (Intelligent Prosthesis, IP). All had an endoskeletal hip disarticulation prosthesis with an Otto Bock 7E7 hip and a single-axis foot. The energy expenditure was measured when walking at speeds of 30, 50, and 70 m/min. Two patients showed a decreased uptake of oxygen (energy expenditure per unit time, ml/kg/min) of between 10.3% and 39.6% when using the IP compared with the Otto Bock 3R15 at the same speeds. One did not show any significant difference in the uptake of oxygen at 30 m/min, but at 50 and 70 m/min, a decrease in uptake of between 10.5% and 11.6% was found when using the IP. The use of the IP decreased the energy expenditure of walking in these patients.
Tensile strength of the medial patellofemoral ligament before and after repair or reconstruction
Authors: Mountney J. , Senavongse W. , Amis A. A. , Thomas N. P. 
Published: February 2018

The tensile strength of the medial patellofemoral ligament (MPFL), and of surgical procedures which reconstitute it, are unknown. Ten fresh cadaver knees were prepared by isolating the patella, leaving only the MPFL as its attachment to the medial femoral condyle. The MPFL was either repaired by using a Kessler suture or reconstructed using either bone anchors or one of two tendon grafting techniques. The tensile strength and the displacement to peak force of the MPFL were then measured using an Instron materials-testing machine. The MPFL was found to have a mean tensile strength of 208 N (SD 90) at 26 mm (SD 7) of displacement. The strengths of the other techniques were: sutures alone, 37 N (SD 27); bone anchors plus sutures, 142 N (SD 39); blind-tunnel tendon graft, 126 N (SD 21); and through-tunnel tendon graft, 195 N (SD 66). The last was not significantly weaker than the MPFL itself.
The pathogenesis of discogenic low back pain
Authors: Peng B. , Wu W. , Hou S. , Li P. , Zhang C. , Yang Y. 
Published: February 2018

Discogenic low back pain is a common cause of disability, but its pathogenesis is poorly understood. We collected 19 specimens of lumbar intervertebral discs from 17 patients with discogenic low back pain during posterior lumbar interbody fusion, 12 from physiologically ageing discs and ten from normal control discs. We investigated the histological features and assessed the immunoreactive activity of neurofilament (NF200) and neuropeptides such as substance P (SP) and vasoactive-intestinal peptide (VIP) in the nerve fibres. The distinct histological characteristic of the painful disc was the formation of a zone of vascularised granulation tissue from the nucleus pulposus to the outer part of the annulus fibrosus along the edges of the fissures. SP-, NF- and VIP-immunoreactive nerve fibres in the painful discs were more extensive than in the control discs. Growth of nerves deep into the annulus fibrosus and nucleus pulposus was observed mainly along the zone of granulation tissue in the painful discs. This suggests that the zone of granulation tissue with extensive innervation along the tears in the posterior part of the painful disc may be responsible for causing the pain of discography and of discogenic low back pain.
Evaluation of the flexion gap by axial radiography of the distal femur
Authors: Tokuhara Y. , Kadoya Y. , Kanekasu K. , Kondo M. , Kobayashi A. , Takaoka K. 
Published: February 2018

The shape of the flexion gap in 20 normal knees was evaluated by axial radiography of the distal femur, and the results compared with those obtained in a previous study by MRI. The observed asymmetry was reduced by 29% using radiography, with a mean value of 3.6° (1.5° to 6.3°) compared with that obtained by MRI of 5.1° (2.6° to 9.5°), a mean discrepancy of 1.49°. The results obtained by radiography and MRI showed a strong correlation (r = 0.78). Axial radiography is acceptable for the evaluation of the flexion gap and is less expensive and more comfortable to perform than MRI. Additionally, no metallic artefact occurs when the radiological method is used for assessment after arthroplasty.
Perbandingan Struktur Komunitas Mikroartropoda Tanah di Lahan Zona Aktif dan Pasif TPA Jatibarang Semarang
Authors: Amelinda Elda Dheiva , Rahadian Rully , Hadi Mochamad 
Published: February 2018

Microarthropods is one of the important components of soil biology which is abundant and varied. The purpose of this research is to compare the structure of microartropod soil community and to examine the influence of physical-chemical factors of the environment based on the dynamics of abundance of soil microartropods in the active zone and the passive zone of Jatibarang Landfill Landfill Semarang. This research was conducted at Jatibarang Landfill Zone of active zone and passive zone by using purposive sampling method. The results showed that the number of species and the number of microartropods in the active zone was higher than the passive zone. In the active zone found 2240 individual / m2 soil microartropods consisting of 21 species and 17 families, whereas in the passive zone found 480 individual / m2 soil microartropods consisting of 10 species and 9 families. The dominating families in both the active and the passive zones are Sciaridae and Cicadellidae. Environmental factors that affect the diversity of soil microartropods are ground water content, soil porosity, heavy metal content such as Pb, Cu, and Zn; As well as the availability of organic matter in the soil. Keyword: Community structure, soil microarthropods, heavy metals, Jatibarang landfill
Produksi Enzim Selulase Dari Bakteri Serratia marcescens KE-B6 Dengan Penambahan Sumber Karbon, Nitrogen dan Kalsium Pada Medium Produksi
Authors: Septiani Arom , Wijanarka W , Rukmi MG Isworo 
Published: February 2018

The waste of cellulose in the agro-industry can be reduced by decomposing the cellulose polymer into glucose. This process was carried out by cellulase enzyme (EC 3.2.1.4) produced by cellulolytic bacteria. Bacteria required food as nutrition to survived their life, can be obtained through growth medium or enzyme production medium. Carbon, nitrogen and calcium belong to the essential nutrients contained in growth medium and enzyme production medium. The purpose of this study is to determine the effect of the addition of carbon, nitrogen and calcium source and the time of incubation on the production of cellulase enzyme from Seratia marcescens KE-B6 bacteria. This research used Completely Randomized Design (RAL) of Factorial Pattern with two factors. The first factor is the type of medium, the first medium is the standard medium (M1) and the second medium is enriched with carbon, nitrogen and calcium sources (M2), the second factor is the incubation time with 5 repetitions. The enzyme production is measured by the reducing sugar method. The data obtained were analyzed using Anova. The results showed that the addition of carbon, nitrogen, and calcium sources and incubation time did not affect the production of cellulase enzyme by Serratia marcescens KE-B6. Keywords: Cellulose, Cellulase enzyme, Serratia marcescens
Efek Pemberian Virgin Coconut Oil Dan Olive Oil Dalam Pakan Terhadap Pertumbuhan Tulang Femur Tikus Putih Jantan (Rattus norvegicus)
Authors: Suhartatik S , Yuniwarti Enny Yusuf Wachidah , Djaelani Muhammad Anwar 
Published: February 2018

This research aimed to annalyse the effects of virgin coconut oil and olive oil on the length, diameter and weight of the femur bone in white male rat (Rattus norvegicus). This research used 25 white male rats and consists of 5 treatments with 5 replications. This research used the treatment P0: as a control, P1: feed with an addition of 5 ml virgin coconut oil / kg feed, P2: feed with an addition of 10 ml virgin coconut oil / kg of feed, P3: feed with an addition of 5 ml olive oil / kg feed and P4: feed with an addition of 10 ml olive oil / kg feed. This research used a method called Completely Randomized Design (CRD). The variables measured in this research are the weight, length and diameter of white male rats. The data was analyzed using Analysis of Variance (ANOVA) at 95% level. The results showed that the growth of femur bone in male rat does not have different response after giving virgin coconut oil and olive oil. Keywords : VCO, olive oil, femur bone, rat
BEBERAPA ASPEK BIOLOGI UDANG PUTIH (Penaeus indicus) DI PERAIRAN SEBELAH UTARA BREBES DAN TEGAL, JAWA TENGAH (Biological Aspects of White Shrimp (Penaeus Indicus) In the North Brebes and Tegal Waters, Central Java)
Authors: Wahyuni Iin Ika , Solichin Anhar , Saputra Suradi Wijaya 
Published: February 2018

Salah satu potensi perikanan di perairan Brebes dan Tegal adalah Udang Putih yang terancam kelestariannya akibat meningkatnya penangkapan dengan Jaring Arad. Tujuan penelitian ini untuk mengetahui aspek biologi udang P. indicus dan status sumberdayanya, seperti komposisi hasil tangkapan, struktur ukuran, sifat pertumbuhan, dan aspek reproduksi. Metode penelitian yang digunakan yaitu metode survei. Sampel udang diambil 100% dari total hasil tangkapan tiap perahu karena hasil tangkapan kurang dari 100 ekor. Pengambilan sampel enam kali dari Juli-Desember 2016. Tempat pengambilan sampel di TPI Kluwut, Kaliwlingi, Larangan dan Surodadi. Hasil penelitian nilai L50%P. indicus di sebelah utara Brebes dan Tegal memiliki panjang total 84 mm dan 85 mm, nilai ½ L∞ yaitu 97 mm (jantan) dan 121 mm (betina). L50% < ½ L∞ berarti ukuran udang yang tertangkap masih kecil sehingga dikhawatirkan terjadinya growth overfishing. Sifat pertumbuhan udang jantan dan betina di Brebes yaitu isometrik (b=2,98) dan alometrik negatif (b=2,86), di Tegal yaitu alometrik positif (b= 3,43) dan isometrik (b= 3,02). Nilai faktor kondisi P. indicus di Brebes 1,63 (jantan) dan 1,59 (betina), sedangkan di Tegal 1,81 (jantan) dan 1,57 (betina). Perbandingan nisbah kelamin P. indicus di Brebes 1: 4,4 dan di Tegal 1: 2,9. Status tingkat pemanfaatan sumberdaya udang P. indicus di sebelah utara Brebes dan Tegal perlu penyempurnaan untuk memenuhi syarat perikanan yang berkelanjutan. One of the potential fishery in the Brebes and Tegal waters is P. Indicus shrimp that has been threatened by increasing fishing effort of Arad net. The purpose of this research to know biological aspects of P. indicus and resources status, such as composition of catch, size of structure, growth, and reproduction aspects. The method used is survey method. Shrimp samples were taken at random 10% of the total catch per boat. Sampling six times from July to December 2016. The sampling at TPI Kluwut, TPI Kaliwlingi, TPI Larangan and TPI Surodadi. The results of research L50% value of P. indicus in north Brebes and Tegal has 84 mm and 85 mm TL, ½ L∞ are 97 mm (males) and 121 mm (females). L50% <½ L∞ mean size of shrimp caught are ssmall to worry about the occurrence of growth overfishing. The growth of males and females shrimp in Brebes are isometric (b = 2.98) and negative allometric (b = 2.86), in Tegal growth of males and females are positive allometrik (b = 3.43) and isometric (b = 3.02). Condition factor P. indicus in Brebes are 1.63 (males) and 1.59 (females), whereas in Tegal are 1.81 (males) and 1.57 (females). Sex ratio P. indicus in Brebes 1: 4.4 and in Tegal 1: 2.9. Status of the level of resource P. indicus need improvement to qualify sustainable fisheries.
KEANEKARAGAMAN MOLUSKA BERDASARKAN TEKSTUR SEDIMEN DAN KADAR BAHAN ORGANIK PADA MUARA SUNGAI BETAHWALANG, KABUPATEN DEMAK (Molluscs Diversity based on Sediment Texture and Organic Matter Content in Betahwalang Estuary, Demak Regency)
Authors: Shalihah Hana Nisau , Purnomo Pujiono Wahyu , Widyorini Niniek 
Published: February 2018

Muara Sungai Betahwalang merupakan ekosistem yang mendapat masukan dari kegiatan penduduk daerah pemukiman sekitar dan dari Sungai Jajar. Muatan pencemar akan mempengaruhi kondisi muara terutama substrat dasar pada sungai Betah walang. Tekstur dan kandungan bahan organik di dalam sedimen menentukan keberadaan moluska. Tekstur sedimen merupakan tempat untuk menempel dan merayap atau berjalan, sedangkan bahan organik merupakan sumber makanan bagi moluska. Tujuan dari penelitian ini adalah untuk mengetahui keanekaragaman moluska, tekstur sedimen dan kadar bahan organik, serta untuk mengetahui hubungan antara variabel. Metode yang digunakan adalah metode survey dengan pengambilan sampel menggunakan metode Purposive Sampling. Sampel diambil pada 5 stasiun dan masing-masing stasiun terdiri dari 3 titik. Hasil penelitian menyebutkan bahwa terdapat 10 genera dari kelas Gastropoda yaitu Littorina, Cerithidea, Turritella, Clathrodrillia, Fasciolaris, Conus, Filopaludina, Pila, Melanoides dan Telescopium dan 4 genera dari kelas Bivalvia yaitu Anadara, Mesodesma, Mytilus dan Donax. Karakteristik substrat di muara Sungai Betahwalang adalah liat dan liat berpasir dengan kadar bahan organik berkisar antara 6,2-17,4 %. Hubungan moluska dengan tekstur sedimen terutama liat mempunyai korelasi positif dengan persamaan y = 6.94x + 224.0 (r = 0.535). Hubungan moluska dengan bahan organik mempunyai korelasi positif dengan persamaan y = 33.44x + 271.1 (r = 0.507) dan R2 = 0.257 Betahwalang Estuary is an ecosystem that gets input from the activities of the surrounding residents area and from the Jajar River. Contaminant load from upstream will affect the condition of the substrate in Betah walang river. Texture and organic matter content in the sediments determine the presence of molluscs. Sediment texture is a place for molluscs to stick, crawl or walk, while organic matter is a source of food for them. The purpose of this research is to know the diversity of molluscs, sediment textures and organic matter content, and to know the relationship between those variables. The method used is survey method with sampling using Purposive Sampling method. Samples were taken at 5 stations and each station consisted of 3 spots. The results show that 10 genera of the Gastropod class were Littorina, Cerithidea, Turritella, Clathrodoillia, Fasciolaris, Conus, Filopaludina, Pila, Melanoides and Telescopium and 4 genera of Bivalves class were Anadara, Mesodesma, Mytilus and Donax. Betahwalang estuary are characterized by clay and sandy clay with organic material content between 6,2-17,4%. The relationship of molluscs with sediment texture, especially clay, has a positive correlation with the equation y = 6.94x + 224.0 (r = 0.535). The relationship of molluscs with organic matter has a positive correlation with the equation y = 33.44x + 271.1 (r = 0.507).
MODIFIKASI BUBU (TRAP) BERCELAH PELOLOSAN DALAM UPAYA PENANGKAPAN KEPITING BAKAU (Scylla serrata) RAMAH LINGKUNGAN
Authors: Fitri Aristi Dian Purnama , Kurohman Faik , Jayanto Bogi Budi , Hapsari Trisnani Dwi , Husni Iqbal A. , Prihantoko Kukuh E. 
Published: February 2018

Peraturan Menteri Kelautan Perikanan RI nomor 1 Tahun 2015 menetapkan ukuran lebar karapas untuk Kepiting Bakau (Scylla serrata) layak tangkap minimal 15 cm. Konstruksi trap yang digunakan untuk menangkap Scylla serrata di perairan Rembang memberikan peluang tertangkapnya stadia juvenille (< 10 cm CW). Trap dengan inovasi celah pelolosan diasumsikan dapat meloloskan Scylla serrata stadia juvenille. Desain celah pelolosan berbentuk segi empat terletak sepanjang bagian sisi bawah trap dengan ukuran tinggi 3 cm, memberikan hasil tangkapan Scylla serrata yang terkecil berukuran lebar karapas rata-rata 8,3 cm dibandingkan tanpa celah pelolosan dengan ukuran terkecil lebar karapas rata-rata 5,3 cm. Tertangkapnya Scylla serrata dengan desain trap bercelah pelolosan < 10 cm CW (stadia juvenille) mengindikasikan bahwa populasi biota tersebut di perairan Rembang berukuran kecil pada saat dilakukannya penelitian pada bulan April sampai dengan Juni 2016. Regulation of the Minister of Marine and Fisheries of the Republic of Indonesia No. 1 / 2015 set the legal size of Mud crab (Scylla serrata) at least 15 cm carapace width. The trap construction used to capture Scylla serrata in Rembang waters provides an opportunity for capturing juvenile stadia (<10 cm carapace width/CW). The innovation of trap with the escape gap is assumed to pass Scylla serrata juvenille stadia. The design escape gap of a rectangular is located along the underside of the trap with a height of 3 cm, giving the smallest Scylla serrata catches the width of an average carapace by 8.3 cm compared with no escape passes with the smallest size of the average carapace width of 5.3 cm. The capture of Scylla serrata with the trap design of a 10 cm CW (juvenile stadia) trap indicates that the biota population in Rembang waters is small in the case of a study in April to June 2016.
Modelos educativos y perfiles de los docentes de Bibliotecología y Ciencia de la Información en Venezuela
Authors: Pirela Morillo Johann 
Published: February 2018

En este artículo se presentan resultados de una investigación que tuvo como objetivo analizar los modelos educativos predominantes en las Escuelas y Programas de Bibliotecología y Ciencia de la Información, de instituciones de educación superior venezolanas y los perfiles de los docentes que se desempeñan en tales escuelas y programas. Los referentes conceptuales incluyeron una comparación de modelos para estructurar perfiles de los académicos con base en el enfoque por competencias, por ser el de mayor incorporación en el currículo para formar profesionales de Bibliotecología y Ciencia de la información en Venezuela.Algunos resultados reportan que el mayor porcentaje en edad de los docentes encuestados se ubica en el rango entre 45 a más de 51 años, notándose un equilibrio en cuanto al género, aspecto que ha venido variando en los últimos años, porque la docencia bibliotecológica en el país era mayormente ejercida por mujeres. En cuanto a la formación académica, el mayor porcentaje se ubicó en el área de Bibliotecología y Ciencia de la Información, pero es interesante observar la tendencia hacia la interdisciplinariedad, sobre la base de considerar áreas como: Comunicación Social, Letras (Lingüística y Literatura) e Ingeniería. Las conclusiones señalan que existe pertinencia entre los modelos de las instituciones y los perfiles de los docentes, quienes evidenciaron interés en cuanto a la formación y actualización pedagógica y didáctica, como una estrategia que se revierte en ventajas para la formación profesional en el área.
Palyginti (ne)palyginamą: tarpukario ir sovietmečio būsto modernizavimo kampanijos Lietuvoje, jų vertybiniai orientyrai ir idėjų sklaida
Authors: Lakačauskaitė-Kaminskienė Regina 
Published: February 2018

Straipsnyje analizuojamos dvi gyvenamosios erdvės modernizacijos kampanijos Lietuvoje – tarpukario ir sovietinė. Lyginant vertybinius ir programinius kampanijų orientyrus bei modernizacijos idėjos sklaidos praktikas, gilinamasi į jų panašumus ir skirtumus. Žvelgiant į tarptautinį kontekstą, analizuojama abiejų modernizacijos kampanijų Lietuvoje koreliacija su tarptautinėmis tendencijomis.