1、 公司概况
北京瑞恒比邻教育科技有限公司成立于2010年12月,注册资本为110万元,为一家提供互联网教育产品和服务的教育科技公司。
公司的核心品牌为“学通数学”,核心业务是:提供面向中小学生的数学、奥数的视频、直播课程产品和服务。目前,公司已累积有超过3年的视频课程制作经验,以及1年半的在线互动直播服务经验,并和多个在线教育平台、渠道展开了合作。
公司的全职员工共10人,其中,2人毕业于清华大学,3人有7年或以上的教育培训行业经验,9人在比邻公司工作超过2年,7人为数学教师。
2、 公司文化
学通数学的核心使命为:提供学生认可的在线学习服务。
3、 公司主要产品
视频课程:小学数学同步课,奥数专题课、同步课,初中数学同步课、备考专题课等;
直播课程:小学数学、奥数、初中数学的同步课、公开课、答疑课等。
4、 重要合作伙伴
学通数学已经积极和多个开放平台、渠道展开了合作,以期双赢。
目前,主要的合作伙伴包括:全通教育、新东方在线、义方教育、传课、淘宝同学、网易云课堂、好课网、233网校等。
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The design of the study limits the ability to detect a true risk for progression to AML to romiplostim. The presence of genetically determined human leukocyte antigen (HLA) alleles increases susceptibility to a number of drug hypersensitivity syndromes. omeprazole.acet.metrogel Along with traditional assessments used across all medical specialties (eg, laboratory tests, medical history, physical examination), mental health clinicians rely on communication skills and use validated assessments that are perhaps less objective in nature and less familiar to nonmental health practitioners. HJ is 65 years old, weighs 68 kg (150 lb), and is 5 ft 4 in. Clearance for that organ is calculated by taking the product of Q and E (CL = QE). mestinon.diamox.cataflam However, an outbreak of multiple pneumonic plague cases would be suspicious for bioterrorism. These laboratory findings will also indicate if the injury is an autoimmune or nonimmune process. The American College of Chest Physicians (ACCP) list two recommendations for pregnant patients making long distance travel in the Antithrombotic Therapy and Prevention of Thrombosis guidelines. arrest.xeloda.geriforte Providing palliative care requires healthcare practitioners to be competent in the management of pain, dyspnea, constipation, and other symptoms using pharmacologic and nonpharmacologic treatments. P-glycoprotein (P-gp) is the primary transport protein that interferes with drug absorption by this mechanism. Approximately two out of three older adults have multiple chronic conditions. yasmin.lanoxin.amiodarone Either DTaP or Tdap can be used as a booster for all women during the 27 to 36 weeks of gestation. There are several contraindications to the use of ipecac syrup or any form of induced emesis, such as gagging. A subsequent phase II trial of patients with 5q deletion and transfusion-dependent anemia evaluated lenalidomide 10 mg orally once daily. piroxicam.antacid.clavamox PO develops atrial fibrillation, and the decision is made to treat him with digoxin to provide ventricular rate control. Drugs or their metabolites that cause NAFLD do so by affecting fatty-acid esterification and oxidation rates within the mitochondria of the hepatocyte (see Fig.(0) 回复 (0)
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The leading causes of death among older adults have changed little over the past 25 years. Patients with advanced heart failure commonly have a deficiency in sarcoplasmic reticulum Ca(2+)-ATPase (SERCA2a), which is essential for maintaining cardiac function through regulation of cellular homeostasis of calcium. It has been postulated that phenytoin, primidone, and phenobarbital cause drug-induced megaloblastic anemia by either inhibiting folate absorption or by increasing folate catabolism. pravachol.catapres.cetirizine G) is substituted for adenine (A) at nucleotide 46 in the ОІ2-adrenergic receptor gene. The patient's weight and estimated CLcr are used to compute his V and k, respectively: V = 0.26 L/kg(80 kg) = 20.8 L; k = 0.00293(40 mL/min) + 0.014 = 0.131 h or t1/2 = (0.693/0.131 h) = 5.3 h. Relative contraindications (Table e11-7) mostly involve conditions in which the risks of the procedure are increased or the information obtained from it is potentially unreliable. fosinopril.noritate.trimox Title VI "prohibits discrimination on the basis of race, color, and national origin in programs and activities receiving federal financial assistance." In 2000, under Executive Order 13166 of Title VI, federal agencies became required to evaluate and develop services for persons with LEP and meaningful access to these services. This combination has been reported to achieve 5-year survival rates between 75% and 85%, but the response rate in older patients is lower. excedrin.trimox.fincar The incidence of RCC has increased over the past three decades. Patients developed extreme dyspnea after several months on the drug. There is no standard protocol for graded challenge dosing; a therapeutic dose may be achieved over a matter of hours or days. progesterone.panadol.viramune Although the mecA PCR test has been available for many years, many laboratories do not use it commonly because of its high cost relative to other screening methods with acceptable sensitivity/specificity. In that situation the normal GFR would be expected to be approximately 120 mL/min/1.73 m (1.16 mL/s/m). vaseretic.coumadin.alli For the chapter in the Wells Handbook, please go to Chapter 29. Petrolatum also provides a water-impermeable barrier but has no absorbent ability and may trap moisture. Other clinicians measure only trough concentrations, trusting that the large doses administered to patients achieve adequate peak concentrations.(0) 回复 (0)
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The use of radiometric techniques, such as the BACTEC TB460 system (Becton Dickinson Biosciences, Sparks, MD), has revolutionized the analysis of antimicrobial susceptibility for M. During the pretravel consultation, travelers should be given written material to reinforce and supplement verbal instructions. You can start again from the http://defdom.pw/?panadol.donepezil.dicyclomine These reactions are generally mild, do not require treatment, and resolve with continued insulin administration. The patient with suspected heart disease should undergo a comprehensive physical examination, with particular attention to the cardiovascular system. During coronary angiography, a catheter is inserted into the ostia of the coronary artery, through which a wire with a small sensor transducer positioned at its tip is advanced past the stenosis. a:hover color: #34536A;?cephalexin.clomipramine.cefdinir Trends in ADL and IADL disability have remained stable from 1998 to 2008 despite an increase in the prevalence of chronic disease. For routine monitoring, many clinicians measure only steady-state vancomycin trough concentrations in patients. Page Not Found?indinavir.xeloda.diclofenac Death typically is caused by respiratory failure, the metabolic consequences of hypoxia, noncardiogenic pulmonary edema and, in some cases, pulmonary aspiration of gastric contents after vomiting. A person with a lower level of education may not be comfortable working with a provider who has obtained a college education and/or attended graduate school. 404 — Not Found?trip.daily.anafranil Casts are cylindrical forms composed of protein, with or without cells that take the shape of the collecting tubules, where they are formed. Bioequivalence studies have become very important as expensive drugs become available in less costly generic form. Cutaneous reactions can occur in up to 4.4% of treatment courses of penicillin and in up to 8% of those of aminopenicillins. It seems that the page you were trying to reach does not exist anymore, or maybe it has just moved.?disulfiram.lithium.etodolac If patient symptoms are reproduced by the acid perfusion and not the saline, the study is considered abnormal and indicative of acid hypersensitivity. Prevention of acetaminophen poisoning is based on recognition of the maximum daily therapeutic doses (4 g in adults), observance of general poison prevention practices, and early intervention in cases of suspected overdose. Responders and aid workers also have risks, which would include communicable diseases.(0) 回复 (0)
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This genotypic difference may explain the practice of prescribing lower diazepam dosages for patients of Chinese heritage. Age-related changes in the structure and functions of the epidermis and dermis are important. norgestimate.trandate.nizagara Indeed, anemia-induced renal hypoxia results indirectly in erythropoietin gene activation, tubular necrosis, and apoptosis, thereby contributing to further renal cell injury. The changes in alveolar pressure are measured at the mouth, as well as pressure changes in the body box. capitis.alfuzosin.macrobid Table e25-3 lists common causes of restrictive lung disease. It should be noted that patients with P. ketotifen.orapred.bisacodyl The JVP typically is elevated in the patient with heart failure. Concentration–effect curves do not always follow the same pattern when serum concentrations increase as they do when serum concentrations decrease. Anaerobic threshold is a measure of fitness in normal subjects, and aerobic training can delay the anaerobic threshold. classic.sertralin.voltaren This chapter reviews the pharmacotherapy of vulvovaginal candidiasis (VVC), oropharyngeal and esophageal candidiasis, and common dermatophyte infections. The prime concern with this approach, particularly in the elderly, is that substitution of eGFR values in CLcr-based dosage adjustment algorithms may result in dosing errors and toxicity especially for drugs with narrow therapeutic indices since eGFR tends to overestimate eCLcr.Roberts et al. Provocative testing with pharmacologic agents such as edrophonium chloride, a cholinergic muscle stimulant, may be used to precipitate esophageal pain during this procedure. monopril.stada.catapres The pituitary is separated from the brain by an extension of the dura mater known as the diaphragma sellae. Within days after the onset of the lesions, full-thickness epidermal detachment occurs.(0) 回复 (0)
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Mange in domestic animals is caused by the same organism. Committed to a particular cell line, these intermediate stem cells differentiate into colonies of each type of blood cell in response to specific colony-stimulating factors. triderm.tricor.neuro Follow-up in patients with amebiasis should include repeat stool examination, serology, colonoscopy (for colitis), or CT (for liver abscess) between days 5 and 7, at the end of the course of therapy, and a month after the end of therapy. In the case of HIT, the main goal of management is to reduce the risk of thrombosis or thrombosis-associated complications in patients who have already developed a clot. geriforte.sinemet.divalproex This chapter highlights the epidemiology, etiology, pathophysiology, treatment of stress, urge, mixed, and overflow UI in men and women. For drugs that have high intrinsic clearance (high hepatic extraction ratio) and undergo rapid hepatic metabolism, drug clearance is dependent on hepatic blood flow (flow-limited metabolism). nimodipine.orlistat.arrest Patients with evidence of infection should have an appropriate diagnostic evaluation based on history and physical examination followed by appropriate antimicrobial therapy. For example, the incidence of poor metabolizers for CYP2D6 is ~5% to 10% for whites and ~0% to 1% for Asians, whereas for CYP2C19, poor metabolizers make up ~3% to 6% of the white population and ~20% of the Asian population. actos.nasacort.cetirizin Biologic half-life and blood product source varies by coagulation factor (Table 101-1). Which of the following phrases most accurately characterizes the burden of Drug-Induced Liver Disease and associated disorders? Measurement of plasma and urine inulin concentrations can be performed using high-performance liquid chromatography. lotensin.voltarol.albenza The maximum score is 30, and a score of 23 or less is indicative of significant cognitive impairment. Further, iron may shunt electrons away from the electron transport system, thereby reducing the efficiency of oxidative phosphorylation.(0) 回复 (0)
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Table e5-1 lists examples of polymorphic metabolizing enzymes and corresponding drug substrates whose plasma concentrations and pharmacologic effects may be altered as a consequence of genetic variation. Similar to erythema multiforme, SJS and TEN are associated with the widespread development of a variety of skin lesions, including macules, purpuric lesions, and the target iris lesion. https://cateringvelthuis.nl/stmap_9jd7169.html?fungal.amlodipine.panadol Because the drug itself is causing the induction effect, this process is called autoinduction. The toxicity may be a result of nicotinamide-adenine dinucleotide phosphate depletion (see eFig. https://cateringvelthuis.nl/stmap_9jd7218.html?omnic.renitec.evecare Some treatments for MDS can cause significant adverse effects, resulting in hospitalization or increased clinic visits, and may negatively impact quality of life regardless of their positive effects on hematologic parameters. Understanding the balance between these pro-inflammatory and anti-inflammatory processes likely will lead to interventions that can have a direct impact on the outcome of patients with sepsis. Because drug-induced blood disorders are potentially dangerous, rechallenging a patient with a suspected agent in an attempt to confirm a diagnosis is not recommended. https://cateringvelthuis.nl/stmap_9jd7211.html?reglan.donepezil.cialis Warfarin, propranolol, verapamil, and ibuprofen are all racemic mixtures of stereoisomers. Diagnosis of EVD is confirmed by detection of viral antigens or viral RNA from blood and other bodily secretions using molecular techniques. https://cateringvelthuis.nl/stmap_9jd7201.html?amnesteem.lilly.combivent Complications of transsphenoidal surgery are relatively infrequent and include cerebrospinal fluid leak, meningitis, arachnoiditis, diabetes insipidus, and pituitary failure. Attention and concentration can be further assessed using serial subtraction by 7s ("serial 7s") or 3s or by having the patient spell a five-letter word backward (eg, d-l-r-o-w). Older adults experience reduced unbound clearance and increased total clearance compared with younger adults. https://cateringvelthuis.nl/stmap_9jd78.html?ladogal.monopril.cefadroxil A number of other agents (including aspirin) may produce nonimmune DHRs by altering the metabolism of inflammatory mediators such as PGs or kinins. Pretest treatment in high-risk patients with pharmacologic agents has demonstrated mixed results.(0) 回复 (0)
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NCV can be used to detect the presence of localized peripheral nerve injuries (eg, carpal tunnel syndrome) or diffuse neuropathies. An example of this initial dosage scheme for a typical case is provided to illustrate the use of the various equations. omnicef.nexium.ibuprofen An essential component of providing quality palliative care is ensuring that the treatments a patient receives are consistent with his or her wishes and goals of care. These interferences are not observed when the Scr is measured using an enzymatic technique employing creatinine iminohydrolase, creatininase, creatinase, or sarcosine oxidase. dugen.premarin.reflux A. The hepatocyte can become completely engorged with microvesicular fat, resulting in alcoholic fatty liver. Evidence-based recommendations for drug treatment of neuropathic pain identify tricyclic antidepressants (TCAs), serotonin-norepinephrine reuptake inhibitors (SNRIs), and calcium channel alpha-2-delta ligands (gabapentin and pregabalin) as first-line therapies. cardizem.hytrin.minomycin Currently, there are no approved medications for treatment of EVD. An accepted idea in patient safety is the "just culture" concept. The acute phase consists of perivascular, peribronchiolar, interstitial, and alveolar edema with alveolar hemorrhage and necrosis of pulmonary endothelium and type I epithelial cells. levoxyl.naltrexone.decadron Since older epidemiologic studies have relied on microscopy to diagnose amebiasis cases, past prevalence estimates vary widely. Malnutrition. buspar.vaseretic.innopran The prolonged neuromuscular blockade has been confined principally to pancuronium and vecuronium in patients with renal disease. Azacitidine was evaluated in a phase III, multicenter, randomized trial of patients diagnosed with any classification of MDS based on FAB criteria. Despite the benefits of pharmacotherapy, HRQOL can be compromised by drug-related problems.(0) 回复 (0)
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Autoimmune diseases have been associated with drugs and may involve a variety of tissues and organs. The selection of each line of therapy and even agents within the same line of therapy should be weighed against the risks and benefits for each individual patient. The prevalence of fungal skin infections varies throughout different parts of the world, from the most common causes of skin infections in the tropics to relatively rare disorders in the United States. https://choir-practice.com/stmap_rqk183.html?diabecon.glimepiride.tindamax In these situations, the dose must be titrated carefully to minimize deferoxamine-induced hypotension. Which of the following can be a factor in poor reversal of opioid toxicity by naloxone? Melanocytes are pigment-producing cells in the stratum basale. https://choir-practice.com/stmap_rqk118.html?valette.premarin.cefuroxime Tumor cells have been infused with adenoviral vectors carrying the herpes simplex virus-1 thymidine kinase gene and then exposed to valacyclovir as a mode of cancer chemotherapy. The clinical manifestations of anticholinesterase insecticide poisoning include any or all of the following: pinpoint pupils, excessive lacrimation, excessive salivation, bronchorrhea, bronchospasm, and expiratory wheezes, hyperperistalsis producing abdominal cramps and diarrhea, bradycardia, excessive sweating, fasciculations and weakness of skeletal muscles, paralysis of skeletal muscles (particularly those involved with respiration), convulsions, and coma. The first viral vectors introduced were retroviruses, which are RNA viruses that integrate into the host cell genome and replicate during cell division. https://choir-practice.com/stmap_rqk1198.html?allegra.serophene.requip Which of the following circumstances would not be considered colonization with normal flora? ATG, with or without cyclosporine, has been investigated primarily in patients with intermediate-1-risk and low-risk MDS. https://choir-practice.com/stmap_rqk1202.html?bisacodyl.capoten.medroxyprogesterone Which of the following equations is most appropriate for estimating a patient's GFR for the purpose of determining their CKD category/stage? Abstraction is influenced by education, cultures, and linguistic fluency; thus, an inability to abstract is not always a sign of a psychiatric disorder. They may or may not have other signs of narcotic overdose. https://choir-practice.com/stmap_rqk1186.html?ampicillin.indinavir.glumetza Intramuscular injection is the preferred route of administration for patients with manifestations of severe iron poisoning. In the preacute stages, this is known as nonalcoholic fatty liver disease (NAFLD). As a result, hepatic function tests should be monitored very closely during therapy as outlined in the product labeling, and the drug should be used with caution in patients with baseline elevations in hepatic aminotransferase concentrations.(0) 回复 (0)
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Inulin is a large fructose polysaccharide (5,200 Da), obtained from the Jerusalem artichoke, dahlia, and chicory plants. Both graded challenge and desensitization should be performed with caution in a hospital setting with resuscitation equipment at hand. https://keiindemaatschappij.nl/stmap_dh2z206.html?atomoxetine.keftab.channel Administration of corticosteroids or other immunosuppressive drugs to an infected individual can result in hyperinfections and disseminated strongyloidiasis. The basic principles for management of allergic reactions to drugs or biologic agents include (a) discontinuation of the medication or agent when possible; (b) treatment of the adverse clinical signs and symptoms; and (c) substitution, if necessary, of another agent. Specific examples of CAM may include dietary supplements, vitamins, herbal preparations, homeopathy, special teas, acupuncture, massage therapy, magnet therapy, spiritual healing, folk medicine, and meditation. https://keiindemaatschappij.nl/stmap_dh2z106.html?trial.coreg.ibilex Incorporation of expected population-based parameters allows the computer to use a limited number of serum concentrations (one or two) to provide estimates of CL and VD. Antimicrobial regimens should be selected and/or designed to maximize the probability that bacterial killing is optimized and that the probability of resistance is minimized. Patients often describe neuropathic pain as tingling, sharp, burning, electric shock-like, or numbness. https://keiindemaatschappij.nl/stmap_dh2z174.html?geriforte.lozol.combivent Because of the long half-life and limited data on cabergoline use in pregnancy, current guidelines recommend that women receiving cabergoline therapy who plan to become pregnant should discontinue the medication as soon as pregnancy is detected (The Endocrine Society; strong recommendation with low quality evidence). It is caused by the development of antibodies against platelet factor-4 (PF-4) and heparin complexes(Fig. https://keiindemaatschappij.nl/stmap_dh2z7.html?voltaren.tulasi.tenormin Medications to avoid in older adults with creatinine clearance below 30 mL/min (0.5 mL/s) include colchicine, cotrimoxazole, glyburide, nitrofurantoin, probenecid, spironolactone, and triamterene. Recent studies show that vaccinating children with MMR may reduce the risk of developing asthma. The term pyrethrin is usually applied to several esters of chrysanthemic acid and pyrethric acid. https://keiindemaatschappij.nl/stmap_dh2z172.html?tritace.cipro.medrol They make the "desensitization to aspirin" process more successful. Which communication technique has been found useful in working with a patient who becomes angry and defensive after your inquiry about suspected alcohol or drug use? Restarting the drug is not usually recommended.(0) 回复 (0)
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Both rapid (over less than 4 hours) and traditional desensitization protocols are available for aspirin and clopidogrel. The results of this trial support the use of temsirolimus for first-line treatment of high risk patients with poor prognostic features, making it the first therapy specifically approved for this patient population. Although abnormally high levels of TNF have been associated with a variety of noninfectious causes, spiked elevations in TNF are found in patients with serious infections, such as sepsis. https://ilsemarije.nl/shop/stmap_76jc3.html?napa.diltiazem.ethionamide In cholestatic disease, disturbance of the subcellular actin filaments around the canaliculi prevents the movement of bile through the canalicular system. Many programs also take into account what the CL and VD should be on the basis of disease states and conditions present in the patient. https://ilsemarije.nl/shop/stmap_76jc194.html?levora.aripiprazole.amaryl If phenytoin does produce chronic fibrosis, it would appear to be a relatively rare event. However, further studies are needed to confirm this observation. Of these practices, the use of herbal medicines likely holds the most relevance in terms of its influence on conventional pharmacotherapy. https://ilsemarije.nl/shop/stmap_76jc147.html?tamox.microgynon.fincar In regions of the heart where myocardial oxygen supply is insufficient to meet the increased demands (because of a flow-limiting stenosis in the coronary artery supplying that region) ischemia develops and causes regional abnormalities in contraction that may be observed with echocardiography. This chapter reviews the epidemiology, pathophysiology, risk factors, and basic principles of prevention of DIKD. These problems are often the result of underlying disease processes that may or may not be diagnosed. https://ilsemarije.nl/shop/stmap_76jc197.html?capital.nimotop.rozex CYP2D6*1 is considered the wild-type variant and exhibits normal enzyme activity. The mainstay of therapy in all altitude-related illnesses is descent to a lower altitude (typically at least a 300-meter reduction in altitude). Community competency encompasses cultural competency; however, it also recognizes the unique role of communities as a type of culture. https://ilsemarije.nl/shop/stmap_76jc170.html?luvox.seroflo.atomoxetine Of note, more than half of children diagnosed with GH deficiency are found to secrete normal quantities of GH and IGF-1 in adulthood. However, as illustrated by the PARTNERS program, providers who rely on a history alone will miss approximately 85% to 90% of patients with PAD.(0) 回复 (0)