Miracle-dz/UniFAR-FTUs huggingface dataset:
Metastable neural dynamics underlies cognitive performance across multiple behavioural paradigms

Despite resting state networks being associated with a variety of cognitive abilities, it remains unclear how these local areas act in concert to express particular cognitive operations. Theoretical and empirical accounts indicate that large-scale resting state networks reconcile dual tendencies toward integration and segregation by operating in a metastable regime of their coordination dynamics. One proposal is that metastability confers important behavioural qualities by dynamically binding distributed local areas into large-scale neurocognitive entities. We tested this hypothesis by analysing fMRI data in a large cohort of healthy individuals (N=566) and comparing the metastability of the brain’s large-scale resting network architecture at rest and during the performance of several tasks. Task-based reasoning was principally characterised by high metastability in cognitive control networks and low metastability in sensory processing areas. Although metastability between resting state networks increased during task performance, cognitive ability was more closely linked to spontaneous activity. High metastability in the intrinsic connectivity of cognitive control networks was linked to novel problem solving (or fluid intelligence) but was less important in tasks relying on prior experience (or crystallised intelligence). Crucially, subjects with resting architectures similar or ‘pre-configured’ to a task-general arrangement demonstrated superior cognitive performance. Taken together, our findings support a critical linkage between the spontaneous metastability of the large-scale networks of the cerebral cortex and cognition.
Slips of the Pen.

A communication system with same frequency repeater station capability operates on a single channel and generally includes at least one repeater station which receives and transmits simultaneously on a single frequency, and a plurality of remote receiver transmitting stations, all of which operate on the same frequency as the repeater station. The repeater station includes a continuously operating transmitter, the keying of which is controlled by a local oscillator. Each of the remote stations includes a similar transmitter which is normally quiescent, but which is energized for local modulation and transmission by a push-to-talk button. Each cycle of the repeater station oscillator is modified by pulses received from a remote transmitting station, to reduce or increase the period as needed to produce identical periods and synchronization in each oscillator. The pulses received at the repeater station are not perceptible during its own transmission and hence, no control is then exerted. Hence, an equilibrium condition is immediately established at the repeater station in which the departure from coincidence of transmitted and received pulses at the repeater station is proportioned to its need for control. The transmissions from the repeater station are received by the remote stations not then transmitting. Intelligent modulation of the pulse period at these receiving remote stations is then evident and may be recovered.
The stability of stratified layers within ventilated enclosures

The project consists of experimental and numerical investigation of buoyancydominated flow leading to thermal stratification in ventilated spaces for the range of Re from 4,000 to 50,000 and Rio below 40. In the evolution of turbulence in stratified shear flows, solving for the primitive variables both in time and space is most important. Steady-state Reynolds Averaged Navier Stokes (RANS) simulations have shown in the past to model adequately the flows that become eventually steady-state. Therefore, three-dimensional steady-state CFD models were used to simulate the flow. The experimental set-up used an Environmental Test Chamber to investigate the stratification in buildings. Temperature differential was created by introducing cold air through a terminal at floor level and hot air through a diffuser pointing vertically downwards at the ceiling level. An extract point was located opposite to the inlets at the rear wall. Different combinations of inlet velocities/flow rates, temperatures as well as different arrangements of the exhaust height were studied to evaluate its effect on velocity and temperature distribution and the effect of jet flow interaction with the stratified layers. The experimental data obtained in this work were also used to validate the predictions from the numerical simulations so that CFD was used to perform more parametric simulations. To model turbulence in the flow field, the appropriateness of several eddy-viscosity based turbulence models was evaluated. The turbulence models used were the standard k-c model, the k-e Chen-Kim modified model, a LowRe modification and the RNG k -c model. All models are in close agreement with each other. The buoyancy extended standard k-e model gives a sharper prediction of mixing in the interface. The physics of the flow are well predicted. The hot jet from the ceiling is buoyed up when it reaches the height of the interface where buoyancy forces dominate gravitational forces marking its appearance on the temperature gradient. From the simulations made at this stage, the characteristics of stratified layers are revealed. It is also shown that the interface height is proportional to the exhaust height for certain room temperatures and velocities. In a comparison between experimental results and numerical simulation, the differences are attributed on the non-adiabatic effects such as heat losses and radiation. A correlation is found between inlet parameters and stratified flow in buildings obtained both experimentally and computationally.
Une méthode de machine à état liquide pour la classification de séries temporelles : A new liquid state machine method for temporal classification

There are a number of reasons that motivate the interest in computational neuroscience for engineering applications of artificial intelligence. Among them is the speed at which the domain is growing and evolving, promising further capabilities for artificial intelligent systems. In this thesis, a method that exploits the recent advances in computational neuroscience is presented: the liquid state machine. A liquid state machine is a biologically inspired computational model that aims at learning on input stimuli. The model constitutes a promising temporal pattern recognition tool and has shown to perform very well in many applications. In particular, temporal pattern recognition is a problem of interest in military surveillance applications such as automatic target recognition. Until now, most of the liquid state machine implementations for spatiotemporal pattern recognition have remained fairly similar to the original model. From an engineering perspective, a challenge is to adapt liquid state machines to increase their ability for solving practical temporal pattern recognition problems. Solutions are proposed. The first one concentrates on the sampling of the liquid state. In this subject, a method that exploits frequency features of neurons is defined. The combination of different liquid state vectors is also discussed. Secondly, a method for training the liquid is developed. The method implements synaptic spike-timing dependent plasticity to shape the liquid. A new class-conditional approach is proposed, where different networks of neurons are trained exclusively on particular classes of input data. For the suggested liquid sampling methods and the liquid training method, comparative tests were conducted with both simulated and real data sets from different application areas. The tests reveal that the methods outperform the conventional liquid state machine approach. The methods are even more promising in that the results are obtained without optimization of many internal parameters for the different data sets. Finally, measures of the liquid state are investigated for predicting the performance of the liquid state machine.
Evolution of the Turbulent Far Wake of a Sphere

The classic turbulent axisymmetric wake derivation for the spreading of wake half-width, δ, and maximum mean velocity, umax decay comes from arguments of a high local Reynolds number, Re, and thus negligible viscosity. If instead one assumes the local Reynolds number is small, then at some distance sufficiently far downstream the turbulent production term in the Reynolds shear stress equation will decay and a new similarity solution will arise: as shown by [2, 4]. This solution features the scaling of δ∼ (x/d)1/2 and umax ∼ (x/d)−1. In other words, the turbulent wake is scaling itself at rates that match the theoretical laminar wake, yet with a local Reynolds number high enough for the turbulent fluctuations to be non-negligible. Whilst the derivation of a low Reynolds number solution is a mathematical exercise, obtaining data to confirm or deny its existence has proved difficult. No experiment has been conducted at a combination of high enough initial Reynolds number and far enough downstream to capture this transition behaviour. Furthermore, only the DNS study of Gourlay [3] has been able to achieve this behaviour; leading some researchers to question whether this decay state would occur or if the wake instead would relaminarise [7]. This paper presents results for a towed a sphere through water at a Reynolds number, based on sphere diameter, of 13000. Our experiments have been able to capture the wake transitioning from the high local Reynolds number solution to the low local Reynolds number solution via high-speed time-resolved PIV. The value of local Reynolds number that exhibits itself in the extreme far wake during the low local Reynolds number solution suggests the wake is still turbulent, supporting the claim of [2, 4].
Impact of Consciousness Energy Healing Treatment on the Physicochemical and Thermal Properties of an Anticancer Drug 6-Mercaptopurine

Mercaptopurine is an antineoplastic chemotherapy drug is used for the treatment of cancer, Crohn's disease, ulcerative colitis, autoimmune diseases, etc. In this scientific study, the impact of the Trivedi Effect®-Consciousness Energy Healing Treatment on the physicochemical and thermal properties of 6-mercaptopurine was evaluated using the modern analytical technique. The test sample 6-Mercaptopurine powder was divided and named into control and treated sample. The control sample did not receive the Biofield Energy Treatment; whereas, the treated sample received the Biofield Energy Treatment remotely by a well-known Biofield Energy Healer, Gopal Nayak. The particle size values in the treated 6-mercaptopurine sample were significantly decreased by 10.18% (d10), 10.59% (d50), 7.62% (d90), and 9.17% {D(4,3)}; thus, the specific surface area was significantly increased by 10.28% compared to the control sample. The powder XRD peak intensities and crystallite sizes of the treated 6-mercaptopurine were significantly altered ranging from -43.40% to 23.33% and -37.09% to 136.67%, respectively; whereas the average crystallite size was significantly decreased by 11.04% compared with the control sample. The latent heat of evaporation and latent heat of fusion of the treated 6- mercaptopurine were significantly increased by 11.81% and 14.97% compared with the control sample. The total residue amount was significantly increased by 6.44% in the treated sample compared with the control sample. The maximum thermal degradation temperature of the 1st, 2nd, and 3rd peaks of the treated sample was altered by 1.55%, 0.18%, and -1.29% compared with the control sample. It was concluded that the Trivedi Effect®-Consciousness Energy Healing Treatment might have generated a new polymorphic form of 6-mercaptopurine which would offer better solubility, absorption, and bioavailability compared with the control sample. The Biofield Energy Treated 6-mercaptopurine would be more efficacious against acute lymphocytic leukemia, chronic myeloid leukemia, Crohn's disease, ulcerative colitis, and autoimmune diseases.
Quantification of lung perfusion blood volume with dual-energy CT: assessment of the severity of acute pulmonary thromboembolism.

OBJECTIVE The purpose of this study was to evaluate the usefulness of quantification of lung perfused blood volume (PBV) with dual-energy CT (DECT) for assessment of the severity of acute pulmonary thromboembolism (PTE). MATERIALS AND METHODS We retrospectively analyzed the records of 72 patients with PTE and 168 without PTE who underwent DECT. The PTE patients were divided into high-, intermediate-, and low-risk groups based on clinical symptoms and right ventricular dysfunction. Correlations between quantification of whole-lung PBV and clinical severity were evaluated. Also evaluated was the relation between quantification of whole-lung PBV and right-to-left ventricular diameter ratio on CT images, which was used as an indicator of right ventricular dysfunction. RESULTS In the PTE and control groups, the whole-lung PBVs were 27.6 ± 7.9 and 29.9 ± 6.8 HU with a significant difference between them (p < 0.0281). In the high-, intermediate-, and low-risk PTE groups, the whole-lung PBVs were 16.0 ± 2.9, 21.0 ± 4.2, and 31.4 ± 5.8 HU with a significant difference between them (p < 0.05). There was no significant difference in whole-lung PBV between the control group and the low-risk PTE group, but there was a significant difference between the control group and the other two PTE groups. In PTE patients, whole-lung PBV had negative correlation with right-to-left ventricular diameter ratio (R = -0.567, p < 0.001). CONCLUSION Quantification of lung PBV with DECT is useful for assessment of the clinical severity of PTE and can be used as an indicator of right ventricular dysfunction.
PENGARUH KOMUNIKASI, KERJASAMA KELOMPOK, DAN KREATIVITAS TERHADAP KINERJA KARYAWAN PADA HOTEL ARYADUTA MANADO

Manusia merupakan sumber daya terpenting dalam mencapai keberhasilan organisasi. Sumber daya manusia akan terwujud dalam karya, bakat, kreativitas dan efektivitas kinerja sebuah organisasi/perusahaan. Komunikasi merupakan proses penyampaian dan pemahaman dari seseorang kepada orang lain. Kerjasama kelompok merupakan bentuk kelompok yang terdiri lebih dari satu orang yang melakukan tugas dengan sejumlah peraturan dan prosedur. Kreativitas adalah kemampuan untuk menghasilkan banyak ide yang keluar dari pemikiran seseorang secara cepat. Kinerja merupakan suatu fungsi dari motivasi dan kemampuan, kinerja seringkali diartikan sebagai hasil kerja atau prestasi kerja. Penelitian ini bertujuan untuk mengetahui pengaruh komunikasi, kerjasama kelompok, dan kreativitas terhadap kinerja karyawan pada Hotel Aryaduta Manado. Metode penelitian yang digunakan adalah asosiatif. Populasi penelitian berjumlah 80 karyawan dan diambil 67 responden sebagai sampel berdasarkan metode simple random sampling. Alat analisis yang digunakan adalah regresi linier berganda. Hasil penelitian menunjukan komunikasi, kerjasama kelompok, dan kreativitas, secara serentak berpengaruh signifikan terhadap kinerja karyawan di Hotel Aryaduta Manado. Hal ini menunjukan bahwa manajemen Hotel Aryaduta Manado harus memperhatikan faktor komunikasi dan kerjasama kelompok untuk mendorong kinerja karyawan yang lebih tinggi lagi. Kata kunci: komunikasi, kerjasama kelompok, kreativitas, kinerja karyawan
Micropulse laser trabeculoplasty as an adjuvant treatment for uncontrolled open angle glaucoma

Background: We describe the pressure lowering effect of micropulse laser trabeculoplasty (MLT) in patients with medically uncontrolled open angle glaucoma (OAG). Materials and methods: We retrospective reviewed 30 eyes with Open angle Glaucoma (OAG) at the Vista Clinic in Lima, Peru. A single session of MLT treatment was delivered using a 532 nm Frequency doubled Nd. YAG laser to 360° of the trabecular meshwork with a power of 1000 mW, 25 % of duty cycle, and 300 ms. of exposure. The intraocular pressure (IOP) was measured at baseline and at 1 day, 1 week, 3, 6 months post-treatment and were followed up for one last control. Results: The mean baseline IOP was 15.6 mmHg and in the last control was12.8 mmHg, mean follow up time of 19 months (+/10 SD). The mean reduction of IOP in the first day was 1.6 mmHg (± 2.6 SD) and 1.2 mmHg (± 3.3 SD) in the last follow up. The mean percentage of IOP reduction was 17.9% and 7 eyes (40%) had IOP reduction greater than 20%. No statistical difference in relation to demographics characteristics of the patients. The greatest reduction was achieved in the first day with a median of 2.00 (P 0.001). A tendency to achieve higher reduction of IOP in patients with higher baseline IOP was found, but was not statistical significant. No change in the number of medication used and no adverse reactions occurred. Conclusion: MLT was safe and can be effective in reducing IOP in medically uncontrolled OAG.
Analisis Kelulushidupan dan Pertumbuhan Benih Ikan Nila Larasati (Oreochromis niloticus) F5 D30-D70 pada Berbagai Salinitas

Nila dapat hidup di air tawar, air payau dan air laut dengan kadar garam antara 0-35 ppt. Ikan nila ( Oreochromis niloticus ) air tawar dapat dipindah ke air asin dengan proses adaptasi bertahap, yaitu dengan menaikkan kadar garam sedikit-demi sedikit. Untuk meningkatkan produksi budidaya khususnya ikan nila ( Oreochromis niloticus ), dapat dilakukan dengan cara mengetahui media pemeliharaan yang optimal bagi kelulushidupan dan pertumbuhan ikan tersebut. Tujuan dari penelitian ini adalah untuk mengkaji pengaruh salinitas berbeda terhadap kelulushidupan dan pertumbuhan benih ikan nila Larasati ( Oreochromis niloticus ) F5 serta mengetahui salinitas terbaik dalam media pemeliharaan benih ikan nila Larasati ( Oreochromis niloticus ) F5. Penelitian ini dilaksanakan pada bulan April – Juni tahun 2012, bertempat di Satker PBIAT, Janti – Klaten, Jawa Tengah. Ikan uji yang digunakan adalah benih ikan nila Larasati ( Oreochromis niloticus ) F5 berukuran 3–5 cm. Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan masing – masing 3 kali ulangan. Perbedaan salinitas media pemeliharaan pada setiap perlakuan A, B, C, D, dan E masing - masing adalah 0, 15, 20, 25, dan 30 ppt. Benih ikan dipelihara dalam wadah pemeliharaan dengan volume air 20 liter dan kepadatan 20 ekor setiap wadahnya selama 40 hari. Pemberian pakan dilakukan secara at satiation pada pukul 08.00, 12.00, dan 16.00 WIB. Hasil penelitian menunjukkan bahwa perlakuan salinitas berpengaruh nyata terhadap kelulushidupan dan berpengaruh sangat nyata terhadap pertumbuhan dan rasio konversi pakan ikan nila Larasati ( Oreochromis niloticus ) F5 serta media salinitas 0–20 ‰ baik bagi kelulushidupan dan pertumbuhan benih ikan nila Larasati ( Oreochromis niloticus ) F5.
İLKÖĞRETİM SOSYAL BİLGİLER 7. SINIF ÖĞRENCİLERİNİN GRAFİK OKUMA BECERİSİNİ KAZANMA DÜZEYLERİ

Bu arastirma ilkogretim 7. sinif sosyal bilgiler ogrencilerinin grafik okuma becerisini kazanma duzeylerini belirlemeye yonelik hazirlanmistir. Arastirma icin gerekli olan veriler Adiyaman ili merkez ilcede yer alan 3 ilkogretim okulu ile yine merkeze bagli bir koy okulunda ogrenim goren toplam 136 sosyal bilgiler 7. sinif ogrencisinden elde edilmistir. Arastirma sonucunda; ogrencilerin genel grafik okuma becerileri orta duzeye yakindir (%47). Genel olarak ogrencilerin tek boyutlu hazirlanan grafikleri okuma becerileri %90’i asarken hem sutun hem de cizgi grafik iceren sorularda ise basari duzeyi %11’e kadar dusmektedir. Ogrencilerin grafik okuma becerileri cinsiyete gore ve okul turune gore anlamli bir fark gostermemektedir.
Turbulence Measurements with a Sampling Laser-Doppler Velocimeter

A novel sampling signal processor overcomes the difficulties encountered with frequency trackers in the investigation of unseeded highly turbulent flows. This sampling system consists essentially of a swept filter, e.g. a standard RF-spectrum analyzer, a digital data memory and a storage oscilloscope. It is able to determine first-order statistical averages of turbulent flows with high fluctuation frequencies and amplitudes even at very low scattering particle concentrations. Since the velocity samples are not statistically independent of the velocity, the sampled velocity data has to be corrected in order to obtain un­ biased statistical averages. A theoretical analysis and experimental investigations of the system and its application are given.
Mean Square Stabilization Over SNR-Constrained Channels With Colored and Spatially Correlated Additive Noises

This note addresses the problem of stabilizing a multi-input multi-output (MIMO) discrete-time linear time invariant (LTI) system over a MIMO additive noise channel. To treat this problem, we assume that the communication link between the plant output and the controller input consists of multiple additive colored mutually correlated noise channels subject to independent signal-to-noise ratio (SNR) constraints. We derive analytical conditions for which mean square stabilization (MSS) can be achieved under such constraints. We also formulate numerical methods to test these conditions when the noise is white and correlated. Moreover, for simpler plant models, a characterization of the set of power constraints compatible with MSS is obtained. Our results show that the frequency response of the spectral factor related to the channel noise affects the minimum SNR for stability depending mostly on the unstable poles and their directions. This is aggravated by the existence of nonminimum phase zeros and higher relative degree of the plant. On the other hand, we detect that systems under highly correlated noise show lower SNR requirements for stability compared to ones with independent noise channels. Numerical simulations are provided to illustrate the theoretical results.
Readying nurses for clinical practice: Protecting students during an outbreak of Middle Eastern-Coronavirus in Saudi Arabia

Background: Saudi Arabia is experiencing an outbreak of Middle Eastern-Coronavirus (MERS-CoV) both in the hospitals and in the community. The MERS-CoV kills about 40% of those infected and has been detected in 22 different countries worldwide. The Faculty of Nursing at the world’s largest female-only university banded together to create an education program to prevent exposure and ultimately infection of students and staff from MERS-CoV. Methods: This study included two questionnaires given before and after a series of educational workshops to understand what students knew, what they learned, what was happening at the clinical setting, and where they were getting their information. The purpose was to answer questions and to inform the nursing college community about best practices for disease transmission prevention. A pre and post-questionnaire was given after approval from the college ethical committee. Summary statistics are presented as percentages of the participant sample that responded to each question. T -tests were performed to assess the difference between means of the pre and post-test. Results: This study showed that baseline knowledge was low before the educational workshop sessions. While knowledge increased, anxiety decreased ( p less than 0.05), and intention to increase frequency of hand washing increased (not statistically significant). The majority of students sought information about the epidemic from Twitter (40%), followed by television (36%). Conclusions: Nursing colleges may need to review existing or develop new epidemic-related policies. These include attendance of students in clinical settings and the duty of care towards patients during epidemics. Normal 0 false false false EN-CA X-NONE X-NONE