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Objective: To evaluate the effect of wireless
biofeedback therapy on bruxism. Methods: Fifteen bruxiers participated to be
treated by this therapy. The abnormal movements of teeth during sleep were
monitored by a maxillary splint with an electric resistance strain gauge.
Meanwhile, the receiver device recorded these details and analyzed the data, including
the value of the biting force, occurring time and duration. If the value of
biting force or duration exceeds the threshold, a vibrating device like a
watch style will alert the patient to relax the masticatory muscles and nervous
system to stop the abnormal grinding or clenching. Data were recorded during
8 hours’ sleep and analyzed after the 12 weeks’ treatment and 24 weeks’
treatment. Results: The average episodes of bruxism have declined from (10.60 ±
1.23) to (6.60 ± 0.75) after 12 weeks’ treatment (p < 0.05), and the average duration of bruxism events was
reduced from (13.2 ± 0.74) s to (6.50 ± 0.40) s (p < 0.05). The average episodes of bruxism have declined to
(3.80 ± 0.64) after 24 weeks’ treatment, and
the average duration of bruxism events was reduced to (3.37 ± 0.34) s (p < 0.05). Conclusions: The results
suggest that biofeedback therapy can be effective for bruxism treatment.
In this paper, we apply the Legendre spectral-collocation method to obtain approximate solutions of nonlinear multi-order fractional differential equations (M-FDEs). The fractional derivative is described in the Caputo sense. The study is conducted through illustrative example to demonstrate the validity and applicability of the presented method. The results reveal that the proposed method is very effective and simple. Moreover, only a small number of shifted Legendre polynomials are needed to obtain a satisfactory result.
“The Kite Management Philosophy” tells us: Before making change, an organization should fully understand the
surrounding environment, prepare related factors and develop a suitable system.
After the conditions are ripe, it must boldly implement the organizational
goals and be good at controlling. The current biggest problem of obsessing and obstacle
of the Chinese universities logistics reform is not properly handling the
relationship between logistics public welfare and marketability. The
dependence relationship of the two aspects is like a flying kite—more public
welfare means taking back and more marketability means flying off. Managers
should follow “The Kite Management Philosophy”, timely release and recycle the
cord according to the actual situation. They should dare to reform, be good
at controlling and have the courage to innovate.
This paper proposes a kind of compact extrapolation schemes for a linear
Schr?dinger equation. The schemes are convergent with fourth-order accuracy
both in space and time. Especially, a specific scheme of sixth-order accuracy
in space is given. The stability and discrete invariants of the schemes are
analyzed. The schemes satisfy discrete conservation laws of original
Schr?dinger equation. The numerical example indicates the efficiency of the new