bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Vermicompost Extract and Vermicompost-Derived Humic Acids on Seed Germination and Seedling Growth of Hemp
Authors: Ievinsh Gederts , Vikmane Māra , Ķirse Agnese , Karlsons Andis 
Published: September 2017

Abstract
Hemp (Cannabis sativa L.) cultivars grown for industrial use have recently emerged as a sustainable alternative source of industrial fibre and bioenergy, and is a highly valuable food and animal feed resource. The aim of the present study was to evaluate the effect of vermicompost extract, vermicompost mineral nutrient composition, and vermicompost-derived humic and fulvic acids on seed germination and growth of hemp seedlings. In general, separate application of all vermicompost components stimulated seed germination and hypocotyl and radicle growth, as well as increased chlorophyll concentration in cotyledons. Effective concentration range and the degree of stimulation varied significantly between the treatments. For practical purposes, application of vermicompost and vermicompost-derived extracts for stimulation of hemp growth could be useful at concentrations 5%, 0.05 mg·mL−1 and 1%, for vermicompost extract, humic acids and fulvic acids, respectively.
Dynamics of a Population Subject to Impulse Type Random Loss
Authors: Carkovs Jevgeņijs , Šadurskis Kārlis 
Published: September 2017

Abstract
We present a qualitative population growth analysis approach using the Pearl logistic population growth differential equation for a population with the intensity of birth a, stationary size K to instances of fast small random population size extractions proportional to εξ
n
at random time moments τ
n
, where ε is the small positive parameter. Assuming that the intervals τ
n
− τ
n−1 are independent identically exponentially distributed random variables with the parameter λ / ε, and that ξ
n
are the independent identically distributed positive random variables with the mean h and the variance b
2, we analyse the population dynamics and the population asymptotic behaviour. We propose a probabilistic limit theorem based stochastic approximation algorithm for the qualitative analysis of the above model on any finite time interval. At first we derive the linear differential equation for mathematical expectation 𝔼{x(t)} of the population growth and the stochastic Ito differential equation for the normalised deviations (𝔼{x(t)} − x(t))ε−1/2. Assuming that the difference a − λh = εc is sufficiently small we derive the stochastic differential equation for the scaled population growth in accelerated time ε−1
Kx(t / ε)and prove that under condition 2c < λ(h
2+b
2) the population disappears with probability one, otherwise the distribution of the scaled population size with increasing time tends to the Gamma-distribution Γ(k,q) with the shape k = 2c/λ(h
2 + b
2) and the scale θ = λ(h
2 + b
2)/2c.
Effect of seawater intrusion on radioactive strontium (90Sr) sorption and transport at nuclear power plants
Authors: Chang Seeun , Um Wooyong , Kim Won-Seok , Kim HyunJu 
Published: September 2017

Abstract
Batch sorption and column experiments were conducted to investigate and compare sorption and transport behavior of 90Sr on the assumption of seawater intrusion at nuclear power plants. Batch sorption experiments were carried out on fractured rocks and bedrocks using synthetic groundwater and seawater both spiked with 90Sr. In general, higher 90Sr sorption occurred on fractured rock samples than on bedrocks, because of the presence of weathered secondary minerals (iron oxide and clay) on fractured rock surfaces. However, one particular bedrock sample (WSP-B) which has higher porosity and carbon amount than fractured rock samples also showed the higher 90Sr sorption than its comparable fractured rocks. For all batch sorption studies, 90Sr sorption distribution coefficient, K
d decreased from groundwater to seawater environment due to the higher ionic strength of seawater (6.4×10−1–7.7×10−1 M) compared to groundwater (4.0×10−3–6.0×10−3 M). The three different ionic strength solutions were used in column experiments, and the results showed that transport behavior of Sr through a fractured rock had similar sorption trend to batch sorption results. The highest mobility (or least retardation) for Sr was found for 100% seawater solution compared to the highest retardation (or least mobility) for 100% groundwater solution. These sorption and transport data of Sr on solid materials contacted with various ionic strength solutions corroborate empirically defensible information for assessment of radioactive contamination in groundwater below the NPP sites located nearby shores. In addition, the experimental data will be incorporated to improve transport models of 90Sr in the subsurface environment for severe nuclear accidents.
Separation of radioisotopes of terbium from a europium target irradiated by 27 MeV α-particles
Authors: Kazakov Andrey G. , Aliev Ramiz A. , Bodrov Alexander Yu. , Priselkova Anna B. , Kalmykov Stepan N. 
Published: September 2017

Abstract
A method for obtaining 156, 155, 154m2, 154, 153Tb radiotracers by the irradiation of a europium oxide target of natural isotopic composition by 27 MeV α-particles is proposed. Terbium can be efficiently separated from bulk of europium by the reduction of the latter by zinc in an acidic solution and precipitation as EuSO4. The optimum Zn/Eu3+ and (NH4)2SO4/Eu3+ molar ratios are 20 and 3, respectively. Terbium is additionally purified from europium and gadolinium by extraction chromatography using LN Resin. It is demonstrated that optimum separation is attained in 0.6 M HNO3. The Tb/Eu separation coefficient was ~5·105. The yield of terbium was about 90%. Time of all steps was 1.5–2 h. The proposed procedure makes it possible to obtain no carrier added terbium radiotracers.
Determination of selenium in roasted beans coffee samples consumed in Algeria by radiochemical neutron activation analysis method
Authors: Messaoudi Mohammed , Begaa Samir , Hamidatou Lylia , Salhi M’hamed 
Published: September 2017

Abstract
The essential trace element selenium is a focus of attention due to its effects on human health, there being consequences of both its deficiency and excess. Due to the ultra-trace content of selenium, the neutron activation analysis method (NAA) is difficult to apply. We therefore made use of the radiochemical neutron activation analysis (RNAA) to determine Se at low level concentrations in several consumed food items in Algeria. A radiochemical procedure based on liquid–liquid separation was established in our laboratory. In this research we focused on the determination of selenium in two species of coffee: Arabica and Robusta. The accuracy of the method was assessed by analyzing the certified reference material NIST-SRM 1573a (tomato leaves). The results obtained show a selenium variation from 0.025 to 0.052 μg/g in coffee beans and an average yield of the separation of about 85%. The results of this study were compared with those obtained with samples from Brazilian, Caribbean, Indian and Kenyan coffee beans.
Efficiency: an underlying principle of learning?
Authors: Commins Sean 
Published: September 2017

AbstractLearning is essential. It allows animals to change circumstances, deal with new situations and adapt to environments. Here, we argue that learning, at behavioral and neural levels, involves efficiency, reflected in metabolic cost reductions. Behaviourally, although multiple solutions to a novel problem may be available, all solutions are not learnt – it is too costly. Furthermore, once a strategy has been selected, it is reinforced producing an efficiency that leads to a maximisation of performance and metabolic cost reductions. Learning can be represented in the brain through many mechanisms; however, if learning is truly efficient, then, all such mechanisms should also be accompanied by a reduction in measurable metabolic costs. By thinking about learning in terms of efficiency, not simply as a descriptive term but rather in terms of metabolic costs, it allows learning to be examined more carefully and provides predictions that can be easily tested (and indeed refuted).
Payment Instruments, Financial Privacy and Online Purchases
Authors: Balgobin Yann , Bounie David , Quinn Martin , Waelbroeck Patrick 
Published: September 2017

AbstractThe protection of financial personal data has become a major concern for Internet users in the digital economy. This paper investigates whether the consumers’ use of non-bank payment instruments that preserve financial privacy from banks and relatives may increase their online purchases. We analyze the purchasing decisions and the use of bank and non-bank payment instruments of a representative sample of French Internet consumers in 2015. Using two econometric methods, namely a two-step regression and a Bayesian Markov Chain Monte Carlo model to account for a potential endogeneity problem, we find evidence that the use of a non-bank payment instrument positively influences consumers’ online purchases.
Do acute ischemic stroke patients receive the right treatment in non-stroke units?
Authors: Adam D. , Burduşa Gina , Iftimie D. 
Published: September 2017

Abstract
Background: Modern treatment of acute ischemic stroke includes thrombolysis and thrombectomy performed for eligible patients in specialized stroke centers. However, a number of patients are admitted in Neurosurgical or Intensive Care Departments of emergency hospitals, units where routine treatment strategies are applied.
Objective: To evaluate the management of patients admitted in these departments that do not benefit from thrombolytic or endovascular treatment.
Methods: A retrospective analysis was performed, including all patients admitted to the Neurosurgery Department and Intensive Care Unit (ICU) of the “St. Pantelimon” Clinical Emergency Hospital with the primary diagnosis of acute ischemic stroke in the year 2016. The following data was retrospectively collected: patient age and sex, comorbidities, risk factors for ischemic stroke, level of consciousness at admission, neurological deficits, stroke location, blood glucose levels, interval from stroke onset to admission, treatment and discharge status.
Results: In 2016, 63 patients with primary diagnosis of acute ischemic stroke confirmed by head CT scan were admitted in our hospital. None presented indication for decompressive craniectomy. Over a half of them (57,14%) were comatose. The majority of patients admitted to the ICU (76,47%) received glucose 10% infusions in the first 24 hours from admission, despite increased blood glucose levels at admission. A number of 38 (60,32%) of these patients died.
Conclusions: Patients with acute ischemic stroke should be treated in stroke units with proper equipment and specialists. National public health institutions should take the necessary measures in order to ensure that patients get to the best facility in order to receive the right therapy in the right amount of time.
Surgical treatment of rare metastatic tumor in Meckel’s Cave: a case report
Authors: Radoi Mugurel , Stefanescu Florin , Vakilnejad Ram , Rodica Fugaciu 
Published: September 2017

Abstract
Objectives: Metastases in Meckel’s cave are a rare tumor entity, but they should be considered in patients with a known primary malignancy and who complain of trigeminal neuralgia.
Methods: The case of a patient with a left trigeminal neuralgia caused by a metastatic tumor involving the Meckel’s cave and Gasserian ganglion is reported. Preoperative symptoms included headache, trigeminal hyperesthesia and facial pain.
Results: The patient underwent microsurgical resection of the tumor, obtaining a histological diagnosis and a resolution of the pain. Trigeminal motor function was preserved.
Conclusion: The best treatment for tumors of Meckel’s cave, including metastases, is complete microsurgical removal. Although good results have been reported with radiosurgery, this treatment should be reserved only for nonresectable and residual tumors.
Intracranial – extracranial meningioma: a case report of a rare entity
Authors: Aleksic Vuk , Spaic Milan , Mihajlovic Miljan , Samardzic Marko , Popovic Igor , Zivkovic Nenad , Cvijovic Aleksandra 
Published: September 2017

Abstract
Meningiomas are common benign intracranial tumors. However, intracranial meningiomas with extracranial extension are exceedingly rare lesions with only a few reported cases in the literature. We report a case of an 86 years old female patient presented with enlarging mass over left parietal region for last 3 years. Besides cosmetic, she had no complaints. Head CT scan with bone window showed a large tumor consisting of intracranial and extracranial part, suggestive for meningioma. Patient was operated, and both parts of tumor were removed. Taking into account surgery indication and patient’s age, bone flap was returned. The postoperative course was uneventful and patient fully recovered. In the case of epicranial tumor attached to the underlying bone, meningioma should be excluded.
Hemimegalencephaly without seizures: report of a case and review of literature
Authors: Atul Agrawal , Gautam Dutta , Daljit Singh , Deepashu Sachdeva , Robin Gupta 
Published: September 2017

Abstract
Hemimegalencephaly is a rare malformation of the brain characterized by enlargement of one cerebral hemisphere. The classic clinical triad consists of intractable epilepsy, severe psychomotor delay and hemiparesis. We report a case of a six months old girl, with the radiological features of hemimegalencephaly but with a comparatively benign clinical course. She had mild developmental delay but with no paresis or seizures. Literature revealed only two reported cases of hemimegalencephaly without the presence of seizures. We discuss the clinical and radiological findings of this third reported case.
Post traumatic vertebro basilar dissection: case report and review of literature
Authors: Karthikeyan Y.R. , Chopra Sanjeev , Sharma Somnath , Purohit Devendra 
Published: September 2017

Abstract
Posterior circulation territory stroke following mild head injury is a known entity although rarely seen. Numerous case reports appear in literature from time to time highlighting this complication. Blunt trauma to the head and neck possibly causes injury to the vertebrobasilar system in the form of angiorrhexis, subintimal, intramural and perivascular hemorrhage which causes secondary narrowing of the injured vessel. These processes can be complicated by progressive thrombosis & vascular occlusion. Here we are reporting a case of post traumatic vertebra-basilar dissection causing bilateral cerebellar and brainstem infarct.
Chondroblastoma of thoracic vertebra in young adult causing paraparesis
Authors: Giri Pramod J. , Chavan Vaibhav S. 
Published: September 2017

Abstract
Chondroblastoma of spine is very rare condition. To best of our knowledge, fewer than 30 cases have been reported in the world literature. Almost all of them involved both anterior & posterior component of vertebra. There are only few reports with isolated posterior element involvement. Clinical presentation of paraparesis because of vertebral chondroblastoma is very rare. This case report presents 17 yr old male with chondroblastoma involving posterior thoracic vertebra presenting with quadriparesis which improved after successful treatment. Early diagnosis and complete excision with periodic follow up is necessary for treatment of this disease.
Twist drill craniostomy vs Burr hole craniostomy in chronic subdural hematoma: a randomized study
Authors: Jaiswal Somil , Chaudhuri A.K. , Ghosh S.N. , Ghosh S. , Saha S.K. , Jaiswal Pooja 
Published: September 2017

Abstract
Aim: To compare two most common operative procedures used in patients with chronic subdural hematomas - Twist drill craniostomy and Burr Hole Craniostomy.
Material and Methods: The study was a prospective randomized controlled trial on patients with chronic subdural hematomas.
Results: Both procedures are comparable with respect to outcome but surgical duration is statistically higher in Burr Hole craniostomy than Twist Drill Craniostomy.
Conclusion: Twist Drill Craniostomy is procedure of choice in emergency surgical situation.
Posttraumatic hydrocephalus: Lessons learned from management and evaluation at a tertiary institute with review of literature
Authors: Kumar Ashok , Kumar Pavan , Jaiswal Gaurav , Gupta Tarun Kumar 
Published: September 2017

Abstract
Background: Post traumatic hydrocephalus (PTH) is a commonest treatable complication of severe traumatic brain injury that’s leads to failure of improvement and worsening of the outcome. Incidence of posttraumatic hydrocephalus is 0.7%-29% reported in different literature. We have observed the development of PTH frequently seen in patients with severe head injury and after decompressive craniectomy (DC). Pathophysiology includes inflammatory changes and adhesion of arachnoid granulation, cerebral ischemia and alteration in cerebrospinal fluid (CSF) dynamics. We studied 35 cases of PTH diagnosed and treated at our institute from May 2008 to May 2017.
Material and methods: This is hospital based retrospective and prospective study conducted in tertiary center on the basis of neuro-radiological examination of the patient. Clinical biodata and radiological profile of the patients was studied at initial presentation with trauma, and when the patient worsened with symptoms of raised intracranial pressure (ICP) in state of established PTH. These cases were treated by medium pressure ventriculoperitoneal shunt (V.P shunt) and outcome was evaluated.
Results: Incidence of PTH in our study is (2.3%). Out of 35 cases 24 (68.57%) were male and 11(31.4%) were female. Road traffic accident (RTA) was the most common mode of injury (82.85%), acute subdural hematoma (SDH) was the most common finding on C.T scan in 15 cases (42.8 %). Decompressive craniectomy was performed in 77% at time of initial trauma. PTH had favourable outcome with V.P. shunting in 91.42%.
Conclusion: Patients with traumatic brain injury present with many complications but PTH is most frequent sequeale that can present in form of various neurological symptoms after trauma and decompressive craniectomy. C.T. scan brain is the investigation of choice for diagnosis of PTH. Outcome was favourable after V.P. shunt in PTH.
Moyamoya Syndrome with contra lateral DACA aneurysm: First Case report with review of literature
Authors: Dwivedi Ashish Kumar , Kumar Pradeep , Shrivastava Trilochan , Jain Shashi Kant 
Published: September 2017

Abstract
Moyamoya disease is a progressive steno-occlusive disease of bilateral internal carotid artery with the development of fine collateral vessels and is an angiographic diagnosis. Concurrent Moyamoya disease with intracranial aneurysm had been reported in literature by various authors. Moyamoya disease is reported with aneurysm at various locations including basilar tip, anterior choroidal artery, posterior choroidal artery, anterior cerebral artery and middle cerebral artery. After reviewing literature thoroughly there is not a single case report on Moyamoya disease with isolated distal anterior cerebral artery aneurysm with the best of our knowledge. Here we are reporting a case of Moyamoya disease of left petrous and cavernous part of internal carotid artery with contralateral distal anterior cerebral artery aneurysm in a 36-year-old male.
Anterior communicating artery aneurysm clipping versus coiling: a comparative study of 50 cases
Authors: Kumar Pradeep , Jain Shashi K. , Sinha Virendra D. , Srivastava Trilochan 
Published: September 2017

Abstract
Introduction: Aneurysmal Subarachnoid Hemorrhage (aSAH) remains a devastating and often fatal form of stroke. The aneurysm is targeted for obliteration to prevent re-bleeding and to manage the possible complications from the event. Endovascular coiling has emerged as a less invasive alternative to conventional surgical clipping to treat aneurysms.
Patients and methods: This study was done in 50 cases of anterior communicating (Acommm) aneurysm presented in the department of neurosurgery, SMS medical college, Jaipur from November 2015 to August 2016 to evaluate the outcome of both modalities used in the treatment of ruptured Acommm aneurysm. 50 patients with Hunt and Hess (H&H) grade I, II or III were classified into two groups of microsurgical clipping and endovascular coiling.
Results: Mortality rate was comparable in both groups that were 21. 21% in the clipping group and 23. 52% in the coiling group. Good Glasgow outcome score (GOS) were found in 60. 60% of clipping and 58. 58% of coiling group. All the complications found to be more in clipping group but that were not statistically significant except for hyponatremia which was significantly higher in clipping group(P=0. 007).
Conclusion: There was no statistically significant difference in GOS at 6 month of follow up between the two groups. We recommend further interventional studies with larger sample sizes and longer follow up for better evaluation of the modalities.
Postraumatic pneumorrhachis: report of three cases and classification proposal
Authors: Padilla-Zambrano Huber S. , Amaya-Quintero Jessica , Yancarlos Ramos-Villegas , Moscote-Salazar Luis Rafael , Calderon-Miranda Willem Guillermo , Mo-Carrascal Joulen , Maraby Johanna , Agrawal Amit 
Published: September 2017

Abstract
The Pneumorrhachis is the presence of air at the level of the spinal canal. It can have several causes among which are: traumatic, iatrogenic among others. Clinical Cases: We present three cases of male patients handled by our neurosurgery service with traumatic pneumorrhachis patients, which were managed in a conservative manner, with control images. Conclusions: pneumorrhachis has traditionally been classified as internal if air is present in the subdural or subarachnoid space and external if the air is located at the epidural level. We propose a classification in degrees (Moscote-Agrawal-Padilla) which is more practical from the clinical and radiological point of view.
Surgical management of giant cell tumor of axis vertebra: review of fourteen cases in literature with a case illustration
Authors: Satyarthee Guru Dutta , Moscote-Salazar Luis Rafael , Agrawal Amit 
Published: September 2017

Abstract
Primary spinal giant cell tumor (PSGCT) considered as rare primary neoplasm, with predilection for subarticular location and commonly located at knee joint region, sacrum or distal radius, however, spinal involvent is uncommon and comparatively much rarer in the cervical spine. Further occurrence of giant cell tumor in the Axis vertebra is extremely uncommon and easily misdiagnosed and, thus, treatment is still debated and various treatment modalities and different surgical approaches were utilized during evolution of surgical management. Authors could collect only 14 cases of primary giant cell tumor affecting Axis vertebra in a detailed Pubmed and Medline search, out of which 12 cases were primary and rest two case was recurrent. So authors reviewed in total thirteen cases primary giant cell tumor of Axis managed surgically, including our case. Out of 13 PSGCT, twelve cases were managed with surgical resection and the rest one case was managed with monoclonal antibody using Denosomab monotherapy without any surgical intervention. In the surgical group (n=12), nine cases had two staged surgical procedure, first being posterior fixation followed by anterior approach with resection of tumor while, the rest three had one stage surgical resection including current case. Authors reports a unique case of spinal giant cell tumor developing in a- 38 - year male with history of renal transplant, presented with neck pain and difficulty in walking, neuroimaging revealed a osteolytic mass lesion involving body of axis vertebra with extension into right sided lamina, underwent two stage complete surgical intervention. Authors describes management of such rare locally recurring primary bony pathology affecting axis vertebra as it is not only interesting and challenging and different management modalities, various, surgical approaches and issue of renal osteodystrophy along with pertinent literature is also reviewed briefly.